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Need to give a shellacing
I am the proud owner of the incredible Vince Brennen wrapped wheel.
http://forum.woodenboat.com/showthre...-Wrapped-wheel
Strider may be old and scruffy but she is going to have a helm that would make the owner of a new Hinckley envious.
I have a friend who is a retired Navy watch officer and I like the idea
of his coming aboard and seeing a wheel that brings back memories. As I
understand it, the recipe is two coats of first cut one pound shellac
followed by a good spar varnish.
However, I went to the art store so I could get help sorting through the
shelf of all the cuts and pounds and they said, "We don't sell shellac
anymore. No one uses it. They all use polyurethane."
There is shellac at the Benjamin Moore store, two kinds, clear and
amber. But, nothing on the can about cuts or pounds. Am I safe using
that stuff, I would presume the amber for the tea color I understand the
navy favored or should I wait and thy and hunt down something that says
"first cut one pound" on the can.
Have all the artists gone to poly for reasons I should be considering?
I really don't want to screw this up after the incredible amount of work Vince put into it.
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Re: Need to give a shellacing
Shellac is a wonderful product but be
careful with storebought shellac. It has wax in it and the recoat with
varnish could be a disaster.
You need to find dewaxed shellac
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Re: Need to give a shellacing
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Re: Need to give a shellacing
Zinnser is pretty good stuff but check the
date on the can and definitely use de-waxed. If you put the wrong stuff
on a piece of wood you can sand it off and start over but I don't think
you want to be sanding that nice wheel of yours.
You can buy shellac flakes here and cut your own so you know it's fresh and the cut you want.
http://www.woodcraft.com/Family/2080...ac-Flakes.aspx
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Re: Need to give a shellacing
Drift ... I use quite a bit of shellac. My favorite is "L'Orange" flakes.
Introduced to it at a young age as a sanding sealer for finish coats, my
education progressed to an appenticeship restoring antique furniture
i.e. french polish. French polish shellac may be the most beautiful
finish there is because of it's thinness I think. Applied using a
"rubber" consisting of the "hair of the beast" (wool) wrapped in Linen
cloth through a few drops of the "oil of the flower" (olive oil) as a
lubricant.
I learned much about hammer veneer work and shellac finishes from an old
Norwegian master, Soren Bakken. And he learned in a shed in Norway that
was powered by a blinded horse in the basement. There was a little bell
by the powered tools. "One bell she vould go, Two bells she vould
stop".
Soren was a genius - He enlisted in the US Navy during the second world
war and was quickly tested and promoted as far as was practical given
his lack of formal education He had many US patents awarded during his
career and after his immigration and eventual citizenship. When well
into his eighties he was still restoring compasses and pocket watches as
a hobby. It was my great fortune to know this man.
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Re: Need to give a shellacing
Quote:
Originally Posted by
John How
I don't think you want to be sanding that nice wheel of yours.
Whew. Am I glad I asked.
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Re: Need to give a shellacing
Shellac will always wash off with alcohol if you botch it.
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Re: Need to give a shellacing
Roger, I can tell ye all ye need to know.
First about shellac. It's all pretty much the same, although some
commercial types sold for furniture finishing do have some wax
additives. What you want is just plain old shellac.
http://ecx.images-amazon.com/images/...KL._AA160_.jpg
"Bulls EyeŽ Shellac is an alcohol-based solution of pure lac, a natural
resin secreted by tiny insects on certain trees, mainly in India. It is
available in Clear and Amber. Both dry to transparent films - the Clear
has a faint, golden cast that is much lighter than oil-base finishes,
while the Amber has a warm, orange cast that gives a rich, antique-look
to woodwork. Bulls EyeŽ Shellacs are manufactured using technology
developed by Zinsser in over a century's experience. They are uniform in
quality, unmatched in shelf life, and packaged for convenience of use.
All-natural Bulls EyeŽ Shellac has many of the great performance
characteristics of today’s synthetic clear finishes: In an age of
fast-drying products, few finishes dry as fast as shellac. Shellac is
user-friendly and virtually goof-proof. It can be applied with a brush,
pad, sprayer, or wiping cloth. No elaborate instructions are needed,
good results are almost guaranteed, and mistakes are easily corrected.
In spite of all the wonders of 21st century clear finish chemistry,
there is still no other finish that enhances the depth and natural
beauty of wood grain like shellac. Wood that has been finished with
shellac looks soft and natural, not plastic-coated. The finish will not
yellow or darken with age like polyurethanes, and it’s simple to
maintain. In a time when more and more consumers prefer finishes that
clean up with soap and water, shellac brushes can be cleaned in
all-purpose household detergents or household ammonia and warm water."
"Bulls Eye" is the oldest premixed shellac made in the USA. You can buy
shellac flakes in the top end woodworking catalogs, as well. These
flakes are dissolved in alcohol to make shellac. Natural shellac is
amber colored, sold as "amber' shellac or "orange" shellac, which are
pretty good descriptions of its color, although more about that later.
"White" or "clear" shellac is simply shellac flakes with most all of the
natural amber color bleached out of them.
While the product literature suggests clean up with soap or amonia, I
prefer alcohol for the first brush rinse, if I'm not just tossing a
cheap brush afterwards. When I'm doing a fair amount of shellacing
continuously over a period of time, such as in my model building, I just
keep the brush in a closed container of alcohol, which would quickly
evaporate otherwise. Shellac dries so quickly that over time you will
find it coagulating up at the ferrule, so frequent rinsing in alcohol
eliminates this sticky mess. (This is also why our mothers used to go
crazy when somebody would put an alcoholic beverage glass on their fine
French polished table tops!)
Now, the Zinsser "Bulls Eye" and other premixed brands are pretty "low
cut" shellac mixes. The "cut" refers to the amount of flake to a gallon
of alcohol. "One pound cut" is a pound to the gallon and so on.
Shellac is a resin that cures hard and the "cut" makes it wonderfully
versatile. Shellac is also one of the best water repellant coatings
around. Shellaced muslin was formerly used as bedding between double
and triple planked boats. That was probably as much as a five pound
cut, which gets pretty goopey. The stuff sold today is about the
consistency of milk, although if you leave a can open for a while, the
alcohol will evaporate and the shellac in the can will thicken.
(Obviously, if this happens, you just put a little more alcohol in it
and it thins right down.) For impregnating fancy work, you want a light
cut. Bulls Eye right out of the can is just fine, so for your
purposes, you don't have to worry about three or five pound cuts.
Now, for fancy work, you can use either white or orange shellac,
depending on your preference. My preference for shellacing traditional
cotton fancy work is orange shellac. White shellac produces a result
looking something like the basic color of the cotton cord, but it
enhances any color imperfections (flecks and such) in the cord and
looks, well, "unfinished." I have seen some work in synthetic cord,
which has much better color consistency, as well as work done in
synthetic colored cord where the color contrasts highlight the knotting
(e.g. coachwhipping) where a clear shellac or polyurethane coating
worked to good advantage. However, for a truly traditional look, orange
shellac is what you want.
Now, when you put the first coat on your fancy work, the shellac will
soak in deeply. In fact, what you are aiming for is not a coating, but a
real impregnation of the fancy work through and through. What you are
making is a resin (shellac) impregnated product, much like the amber
colored micarta board used in old electronics equipment (shellac is a
non-conductor). You really want to soak it in all the way on the first
coat. Once that coat is dry, not much will get past it. Cotton cord
rots quickly. If you've only coated the top of it, your fancy work will
soon rot from the inside out and fall apart.
Don't freak out when your fancy work looks, well, orange, after the
first coat! Once the first coat is applied, continue applying coats of
shellac. Each coat will darken the color and after a number of coats,
it will become a beautiful honey brown. I prefer to use only shellac,
unless I specifically want a particular color. If you want white, or any
other color, apply a couple of good coats of shellac and then a good
enamel paint. If you want the real old fashioned look, just keep adding
shellac coats until it is a nice shiney dark brown. (It won't get
shiney and looking like it was varnished until several coats have built
up.)
Do not varnish over fancy work or try to substitute some synthetic
product for shellac. The varnish won't last and it's pretty much
impossible to strip and refinish, given the surface of the fancy work.
Same problem with polyurethanes... stripping when eventually necessary
will destroy the fancy work.) Paint poses a similar problem, except
that paint covers a multitude of sins, unlike varnish, so repainting
isn't as much of a problem. If you use paint, figure that at some point
it's going to build up to where there's nothing for it but to cut,
scrape and chisel the fancy work off the piece and start all over again.
Herein lies the beauty of using only shellac. Exposed to air and
sunlight, the shellac will eventually dry out, dull and, if thickly
applied, even crack. No problem! Simply wipe it down with alcohol and
apply another coat and you're in business again. Even when you have a
huge build up of shellac on a piece of fancy work, you can soak it in
alcohol (or if attached to something inconvenient for soaking, you can
wrap it in towelling and soak the toweling in alcohol repeatedly to get
the same softening effect.) Once the alcohol hits it, it will dissolve.
(BTW, the shellac that dissolves in the alcohol can be reapplied as,
yep, shellac... wonderful stuff... perpetually recycleable.) When the
excess build up is removed, you can just put on another coat.
If, perchance, you try laying on orange shellac and don't like the
"antique brown" look, you can always simply paint it white and no one is
the wiser.
If you are going the shellac route, buy a quart can, which is a lot
cheaper than smaller lots. It has an indefinite shelf life and, if it
thickens, you can always thin it with alcohol. There is no more
forgiving coating. It sinks in and dries extremely fast. Brush strokes
and runs are not ever a problem. It also makes a very good sealer over
bare wood. I use it extensively for sealing small wooden parts in
modeling because it does not build up as much as other sealers, thus
preserving the detail of small parts, and prevents movement due to
humidity changes, which can destroy a model. And, of course, I use it
on my fancy work. If you have a source of 190 proof grain alcohol to
cut your shellac, I suppose you can even drink it... but don't take my
word on that.
Try it. You'll like it! Shellac is our friend!
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Re: Need to give a shellacing
Roger,
You can buy shellac flakes at Woodcraft Supply. Cut refers to the ratio
of shellac to alcohol. I suspect googling shellac cut would give you
what you need to know to make the "cut".
Dave
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Re: Need to give a shellacing
Bob, that was a succinct education, thank you.
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Re: Need to give a shellacing
Quote:
Originally Posted by
Bob Cleek
Shellac is our friend!
Why aren't people using this on teak brightwork? It sounds like
the finish everyone has been looking for. I've got everything covered
with that horrible Bristol Finish.
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Re: Need to give a shellacing
Ok, just my 2 cents. I've used shellac for
years. Mostly Fr polish on furniture. I mix my own because supposedly
it goes bad after about 6 months. About a year ago, I posted a similar
thread. I decided to do some tests. My position was this:
First, I was cautioned by an older woodworker that it would be ruined by moisture or a wet glass.
I shellacked a scrap and observed no damage from a wet glass, or 1/2 full beer can after 3 days.
An OLD waterman told me one time that they used shellac for topside work
on their boat. I thought he was, well, ignorant, or maybe he just used
"shellac" as a generic term for clear varnish. Who knows.
I put orange shellac (was available from Woodcraft Supply, Now it's
called "Tiger Flakes") on an offcut of Mahogany and threw it in my slack
tub ( whiskey barrel full of water which faces SE). It was absolutely
beautiful for about 6 months. It even sealed the endgrain, soaking in
water and in the sunshine.
It then did turn white, really white and flaky, the wood beneath had turned grey.
I took it out of the tub about 2 weeks ago, just to let it dry, as it
had gotten watterlogged. I'm gonna try to "refinish" it this week, if I
remember.
I used it to seal faying surfaces between oak, using Interlux boatyard
bedding compound, ( again, just scraps) left it sitting on a windowsill
for 4 or 5 months and I don't know if it failed or the bedding compound
is crap, but the compound basically turned to dust.
So, I don't know what to tell you.
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Re: Need to give a shellacing
Roger,
What Mr. Cleek said. I love shellac, and use it frequently for a variety
of chores. I'll add that one phone call to the Zinsser tech folks, and a
good bit of chivvying, elicited the information that their "Seal-Cote" -
which they market as a clear sanding sealer - is about a 1.5 lb. cut.
Their "Clear" and "Amber" are about 2.5 lb. cuts.
There are several reasons that shellac is not used for every finishing
application. First, as mentioned, it melts when alcohol is spilled on
it. While that fact can be taken advantage of... it's not great for
everyday use. Also, that's not the only chemical that shellac doesn't
hold up to. Another thing is that shellac is not that abrasion-resistant
by itself. Less so than even the most basic nitro-cellulose lacquer,
let alone catalyzed lacquers, polyurethanes, or acid-catalyzed hi-tech
finishes like conversion varnishes. I don't recall how shellac holds up
to UV exposure - and don't have my reference books handy to look it up.
I've never seen it have problems... but can't really say for sure. Might
be an issue for full-time outdoors exposure.
In comparison to spar varnish, shellac has another drawback. It's far
more brittle. It won't stand up to impact as well, nor will it move with
the expansion and contraction of the wood under it that is exaggerated
in a marine environment.
Another thing that's nice about shellac that hasn't been mentioned so
far is how well it works in combination with other finishes. I used to
spray some water-based lacquer for one client who insisted on it. One of
the problems with this topcoat is that it imparts no color or depth. It
doesn't LOOK like a finished piece of wood. There is no inherent amber
color, and the component molecules of the finish are quite large - hence
no penetration/depth. If, however, one uses shellac as the sanding
sealer, you start with color and very good penetration. The subsequent
water-based topcoats then look pretty decent.
The same is true of some of the hi-tech finishes. They are what's known
as "water white" - meaning they don't impart any ambering. This is great
for maple or white ash, or select white birch, or holly... but not so
pleasing to the eye for most woods. Shellac as sanding sealer does the
trick. It's interesting that most of the tech reps can't assure you that
their hi-tech goop will work with shellac. None of them even think to
test it. I've been cautiously experimenting for many years now, and
haven't seen anything come out that is incompatible with a first coat of
shellac.
Which brings up another great characteristic of shellac. It makes a very
good Barrier Coat. If you want to use a stain that is technically
incompatible with the topcoat you are planning on... most times one can
seal the stain (once thoroughly dry) with a couple coats of clear
shellac... then topcoat away. I've only had shellac fail me as a barrier
coat one time in over 30 years. That was a surface that was heavily
contaminated with silicone.
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Re: Need to give a shellacing
Quote:
Originally Posted by
David G
What Mr. Cleek said.
Yes, and many thanks to both of you.
Do you think I should put spar varnish on top of the shellac on the
wheel? It sounds like it would hold up a bit better. OTOH with the
shellac alone, I can fix it easier. I have an Origo stove and the fuel I
buy for it from the hardware store says, "Shellac Thinner" right on it.
I could just carry a bag of the flakes and I would be ready to
refinish my wheel anytime I needed to.
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Re: Need to give a shellacing
Agreeing with Mr. Cleek - NO VARNISH OVER
SHELLAC. It ruins the advantages of shellac and won't stick anyway for
many of the same reasons that oil paint is not happy over latex.
Where we disagree is that I have had great happiness with varnish
goobers on wheels, almost like you'd slush a served stay. It can be old
varnish. Thin more than 50% for the first soaking coats and gradually
move to thicker varnish as the fibers absorb it. The problems with this
are that it's much more tedious to apply and it's hard to prevent drips
as you get near the end. All in all, plain shellac is more suitable as
it's so very easy to maintain and repair and it gets niftier looking
with age.
G'luck
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Re: Need to give a shellacing
I'd agree that the plain shellac would
likely be my choice for your application. A small quibble, though. I
have to disagree about spar varnish sticking to shellac. It sticks just
fine, and I have used that combination many times for interior
applications.
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Re: Need to give a shellacing
Live and learn. I never had good luck
with anything over shellac but probably I did some prep wrong. No
matter. In this application shellac's ease of maintenance makes keeping
it as the sole material is the way to go.
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Re: Need to give a shellacing
* Once again - store bought shellac is not dewaxed. It is available, you have to search a bit.
I have painted and varnished over shellac and had no problems. A hundred
years ago it was the painters standard for sealing knots and other
blemishes from bleeding through before painting. I have seen archival
images of Maine built schooners on the ways with big blotchy heavy cut
shellac patches ready for paint on the deck houses etc.
A few years ago I was refinishing the (painted) wainscotting in our
family home (Maine) and found shellac under the paint on the all the
knots. (until then I thought it was all clear wood!)
Unless it is clearly marked on the can "dewaxed" you will have probems
with any topcoat other than more shellac. Zinser does make a shellac
primer that is dewaxed, but it has white pigment added. It might be fine
for your fancywork - that was commonly painted white.
Shellac will disolve itself. I keep a couple of designated shellac
brushes and don't even clean them just let it dry on the brush. about
15-20 minutes in the can will soften it right back up.
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Re: Need to give a shellacing
Quote:
Originally Posted by
Canoeyawl
Unless it is clearly marked on the can "dewaxed" you will have probems with any topcoat other than more shellac.
So this is waxed, right?
http://ecx.images-amazon.com/images/...KL._AA160_.jpg
However, it sounds like just sticking with plan shellac so I can easily
refinish is the best option for the wheel. In that case, it doesn't
matter if there is some wax in the Bulls Eye stuff anyway.
Right?
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Re: Need to give a shellacing
I think that might work out just fine. Just don't handle the wheel and a Martini at the same time :d
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Re: Need to give a shellacing
This may sound heretical but during my
years in the nav' I never saw the boatswains mates shellac anything.
Rails, wheels, columns that got covered with turks heads and wrapped
where painted white.I forget the formula number.
Ted
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Re: Need to give a shellacing
Quote:
Originally Posted by
Tobago
Rails, wheels, columns that got covered with turks heads and wrapped where painted white.
Well, even if I was misinformed, I like the idea of dark brown
better than white paint. I have a dim memory of being aboard a navy
vessel in a museum long ago and seeing a dark brown destroyer wheel.
Maybe they did wheels differently because so many hands touched them?
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Re: Need to give a shellacing
I believe a lot of just goes to keeping it
simple and preserved. If you could take time lapse pictures of a
captains gig, the first day out of the yards it would have some areas of
bright work and in succeeding pictures you'd see less varnish and more
paint. The rope work on the bridge, the pilot house, quarterdeck and
signal bridge was easy to keep clean with a coat of paint and simple to
renew with a fresh coat of paint.
Personally, I'd like a coat of varnish on a nice wheel like that.
Remember though the credo of the Boats': If it moves salute it, if it
don't, paint it.
Excelsior,
Ted
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Re: Need to give a shellacing
I use a lot of shellack in my conservator
work for French Polish. I still use it as a sealant under varnish for
some marine work. Sealing the interior of a spar is a must for
shellack. I used to use it on fancy work but, now I prefer to use clear
artists polymer finish on whippings and macrame. I use the matt finish
product as it does not produce a cheap shine.
Jay
http://im1.shutterfly.com/media/47b9...D720/ry%3D480/
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Re: Need to give a shellacing
Zinsser Bullseye out of the can used to be
"3 pouind cut", maybe perfect as is for your application. Just let it
dry thoroughly prior to topcoating. The shellack is just to seal the
fibers up, not to build up a finish. The kind of wax involved is
negligible and willnot interfere with the bond of the paint over shellac
in the cording. Just apply the shellack in one thin pass and dont
continue washing on aheavier application. Leave plenty of "tooth" for
the finish coats.
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Re: Need to give a shellacing
Quote:
Originally Posted by
Bob Triggs
Zinsser Bullseye out of the can used to be "3 pouind cut", maybe perfect as is for your application.
I hope so. I just bought a can. The fellow at the paint store
didn't think it had wax in it and none is listed on the ingredients.
However, the lac isn't either. I'm going to thin it with alcohol for
the first coat to be sure it really penetrates. Since the stuff sounds
very forgiving, I'm going to try it with nothing on top. If it isn't
holding up the way I like, I'll wipe down with alcohol, re-shellac, and
varnish. I'll post some pictures before long.
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Re: Need to give a shellacing
I'm pretty sure the Zinser stuff is Not
dewaxed. I learn the hard way and had a significant failure using
Zinser out of the can as a sealer under oil paint thinking we might save
a little time - Big mistake.
You might want to call them and ask.
Try a search for "Dewaxed Shellac"
From Wikipedia.
Shellac naturally contains a small amount of wax (3%-5% by volume),
which comes from the lac bug. In some preparations, this wax is removed
(the resulting product being called "dewaxed shellac"). This is done for
applications where the shellac will be coated with something else (such
as paint or varnish), so that the topcoat will be able to stick. Waxy
(non-dewaxed) shellac appears milky in liquid form, but dries clear.
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Re: Need to give a shellacing
Quote:
Originally Posted by
Canoeyawl
Big mistake.
I sure don't want to do that:).
I'm not planning any top coat at this point. I'll just wipe it down
with stove fuel (mine says "Shellac Thinner" on the can) and put more on
if it gets to looking worn. Do you see anything wrong with that plan
using the Zinser?
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Re: Need to give a shellacing
Gentlemen, I must take issue with the idea
of shellacking any object that will be exposed to the elements. Unless
top coated with a proven clear coat, it won't last!
Jay
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Re: Need to give a shellacing
I am a wood floor contractor. We have been
using Zinsser SealCoat (dewaxed shellac)for a sealer under varnish,oil
based and water based polyurethane for about eight years with no
adhesion problems.
This sealer is especially good for use as a barrier coat on existing
finishes to be recoated. It is not intended to be used as a topcoat
exposed to weather or other harsh environments.
Lowes stocks the Zinsser SealCoat and Home Depot stocks the same product under the name ProFinisher Universal Sealer.
http://www.rustoleum.com/CBGProduct.asp?pid=246
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Re: Need to give a shellacing
Wow.
Everyone weighed in on this one! Some really great information in there!
When I was a young BM3 in charge of the paint locker on an AD, we kept
paper bags of coloured ( rose, orange, "clear" [which really wasn't...])
lacs and would routinely do a 4oz/1 qt alcohol mix and call it "a one
pound cut". I thought it superb for ropework as it would penetrate
well, give an even colour base and dry fairly quickly to allow the next
coat or a finish varnish coat. Try tho I might, I cannot remember if
we thinned the "Varnish, Spar, US Navy, MarkIV, General Purpose" or put
it on direct from the can....
The end result was to achieve a dark mahogany colour with the "three
foot finish" depth. I never did get it "right" but I got close.
..........................................
This was probably put on around 1946-1950 and has been on the rail ever
since. It was on the companionway rail from "Officer's Country" (under
the foredeck) up to the Main Deck so it wasn't used as much as some
other rails:
Aboard MV Zuni-Tamaroa (Ex USCGC WMEC 166 TAMAROA, Nee USS ZUNI ATF-95)
http://www.frayedknotarts.com/images.../100_3419L.jpg
Then there was the type of work that was painted, either for a reason or
because some deck ape Chief just got lazy when the old varnish chipped
off. This is on the rail from the Radio Room to the Bridge and got a
LOT of use, painted black for some reason and used like crazy. I'd
love to know just how many hands have slid across these surfaces.
Spanish Coxcomb in cotton line (probably a #36).
http://www.frayedknotarts.com/images...i/100_3431.jpg
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Re: Need to give a shellacing
Roger,
The only dewaxed shellac in a can in zinzer's clear coat; the other have
wax and color. I use them all and only topcoat with the clear coat if I
want to use polyurethane over top, or if I want a lighter color.
Despite what Bob says, all shellac has a shelf life once dissolved. The
Zinser products are clearly labeled for drop dead dates and last for 2-3
years.
Rick
'
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Re: Need to give a shellacing
Quote:
Originally Posted by
landlocked sailor
The only dewaxed shellac in a can in zinzer's clear coat; the other have wax and color.
Anybody need a can of Zinsser Amber? :)
Here's a question: Will a non-wax Shellac stick on a waxed ones one
like the Zinsser Amber? I like the color of the can I have (as well as
the 15 bucks I spent on it). If I used that to soak into the ropework,
could I then put on a barrier coat of the Zinsser clear coat and follow
up with spar varnish? I would think a very textured surface like this
rope work would be more forgiving of adhesion than a smooth wood panel.
Here's a picture of the wheel in question:
http://hphotos-snc6.fbcdn.net/219768...6_164231_o.jpg
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Re: Need to give a shellacing
Quote:
Originally Posted by
Roger Long
Anybody need a can of Zinsser Amber? :)
Here's a question: Will a non-wax Shellac stick on a waxed ones one
like the Zinsser Amber? I like the color of the can I have (as well as
the 15 bucks I spent on it). If I used that to soak into the ropework,
could I then put on a barrier coat of the Zinsser clear coat and follow
up with spar varnish? I would think a very textured surface like this
rope work would be more forgiving of adhesion than a smooth wood panel.
Yes and yes. I believe too much is being made of the waxed vs.
dewaxed issue. If you want another perspective - more authoritative -
call the Zinnser tech folks.
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Re: Need to give a shellacing
Quote:
Originally Posted by
Jay Greer
Gentlemen, I must take issue with the idea of
shellacking any object that will be exposed to the elements. Unless top
coated with a proven clear coat, it won't last!
Jay
Absolutely true. However, it is very easy to lay on another coat, as I mentioned above.
As for "wax," this is the first I've ever heard of it being a problem.
Perhaps that is true if one is doing a table top or some such, but I've
been soaking fancy work in shellac and, in many cases, painting over it,
and have never, ever, had any adhesion problems at all.
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Re: Need to give a shellacing
This is the dewaxed Zinser product - From their website
CLEAR B-I-NŽ Sealer is the ultimate odor blocker for interior
surfaces. It eliminates the toughest odors from food, kitchen grease,
mold and mildew, pet urine, fire and smoke damage, and cigarette and
cigar smoke. The de-waxed shellac formula is clear - leaving surface
appearance unchanged - and is compatible with all topcoats.
edit to add; fromZinser - sanding sealer another clear dewaxed formula
(They make a note that it is an interior product).
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Re: Need to give a shellacing
Roger, The work on that wheel is truly stunning!
Jay
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Re: Need to give a shellacing
Quote:
Originally Posted by
Roger Long
I hope so. I just bought a can. The fellow at
the paint store didn't think it had wax in it and none is listed on the
ingredients.
Nobody adds wax to shellac -- it contains naturally occurring
waxes. The wax isn't a problem with shellac-on-shellac applications as
shellac acts like lacquer (where do you think the name comes from?).
Previous coats simply dissolve into each successive coat. There's no
bond between layers because there are no layers. Wax in shellac is I
think highly overrated as a problem. The problems people report are very
occasional ones where they topcoat a shellac undercoat with modern
high-tech waterborn or polyurethane finishes (and I suspect that that is
more operator error than a wax problem).
Most of the dewaxed shellac that's available is "white" shellac, though you can get pretty the entire gamut in dewaxed from http://www.shellac.net/ShellacPricing.html
Shellac.Net
is run, I believe, by Paddy O'Deen, one of the original Internet
galloots from USENET's rec.woodworking (aka wreck-the-woodwork). He's
got about every variety of flake shellac you can imagine.
FWIW, shellac is a time-honored finish for cloth handlebar tape on bicycles. Add a turks' head or two to make it nice and you get a sweet ride:
The link and the picture below are from Velo Orange,
run by Chris Kulczycki, who founded Chesapeak Light Craft (kit kayaks)
some years back. Velo Orange has small quantities of flake shellac
available, too.
http://3.bp.blogspot.com/_C1XrRVl3W8...1600/shel5.jpg
Also works well on cork handlebar grips and coachwhipping:
http://farm5.static.flickr.com/4106/...d16bbabf_o.jpg
http://www.rideyourbike.com/images/c...hellacbars.jpg
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Re: Need to give a shellacing
I mix the flakes just eyeballing the color
and slather it on chisle handles, saw handles, plane wood and I have
about 40 coats on an old Gerstner knockoff machinists chest. If I were
you I'd wrap whatever vince used around a tube and try the bullsneye
products. The color may surprise you. It's great stuff mixed from flakes
but the stuff in the can is ok by me. Never occurred to me to use it
on cordage.
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Re: Need to give a shellacing
Quote:
Originally Posted by
troutman
If I were you I'd wrap whatever vince used around a tube and try the bullsneye products. The color may surprise you.
I did that this afternoon and the color is just about perfect. I
thinned it 50% for the first coat and it soaked right in. This is
after the third coat and still just slightly tacky.
http://hphotos-snc6.fbcdn.net/218546..._3434369_o.jpg