I use West 5 min. epoxy to fill hairline cracks in bowls. Is there a
common solvent that will thin it a bit (either before or after mixing
? I have noticed that a dab of alcohol based dye will make it more
stringy but not thinner. Strength is not important, but hardness
after curing is. Thanks.
Thinning epoxy is rarely required in boat building - it's
more likely to need to be thickened.
That said, I do recall Gougeon Brothers recommended heating
to thin epoxy. They have an article on the subject here:
Other folk seem to favor cyanoacrylate for filling hairline
You could use denatured alcohol up to about 5% by weight; however,
for what you are trying to do, think I would hit the crack with a heat
after applying the epoxy.
I have zip experience with 5 min epoxy but they have already played
with the formulation to get the 5 min time.
I would use the slower finish epoxy, which is runny and will run into
the crack. It takes 24 hours to cure well, and about a week to really
But like Lew said, heat. either a heat gun (overkill) or a hair dryer.
GetRot, another epoxy product available from West Marine, is what you
want. It is formulated to be lower viscosity.
Or? Captain Toleys Creeping Crack Cure (Also at West Marine)
Good stuff. Not a two part mix, but sinks in well and waterproof when dry.
Just for clarity, West Marine is not the same company
as West System (aka Gougeon Brothers).
Almost everything West Marine sells is available cheaper
from Jamestown Distributors or Hamilton Marine. I only
shop at West Marine when I need something _now_ (because
they're just across town), otherwise I mail order.
On Saturday, December 27, 2014 8:57:42 AM UTC-6, G. Ross wrote:
Fast cure epoxies have no place in my basket of tricks. When I need lower v
iscosity I add a bit of benzyl alcohol, or still better, take advantage of
the epoxy's natural sensitivity to microwaving. Fortunately, almost everyon
e can find a nice big used microwave oven for little or no $$ that can acco
mmodate some fairly large turning pieces. MEK is probably the best cleanup
solvent, acetone second best, as both are used industrially in epoxy bondin
g to aluminum. SmoothOn has a lot of technical data on their epoxy offering
s, which takes the mystery out of what works with what.
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