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Bruce in Bangkok[_8_] Bruce in Bangkok[_8_] is offline
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First recorded activity by BoatBanter: Aug 2008
Posts: 20
Default Delamination with epoxy

In article ,
says...
On Thu, 18 Sep 2008 06:01:39 -0700 (PDT),

wrote:

On my wood Tolman Skiff, I have found a couple of places where two
layers of wood epoxied together are delaminationg. Nothing serious
but if left unfixed would lead to problems. Basically, the directions
said to paint all surfaces with thin epoxy and then before it cured to
spread the thicker and then to join the pieces. So, how am I getting
delamination?
I live in Florida so it is subject to extreme humidity and heat.


epoxy is neither impervious to water, or UV stable. It should not be
thinned, either, as that makes all it's weaknesses even weaker.

I thought Republicans were at least smart enough to read the manual...


What do you mean by "delamination"? Are you referring to glued joints
failing?

I think the first questions would be "did you use epoxy or polyester?"
and "how did you thin epoxy".

I ask as many people do use the term "epoxy" as a description of any two
part system; and the only proper method of thinning epoxy is by use of
rather exotic chemicals that you can't buy at your local paint dealer.
Using acetone, gasoline, alcohol, etc., may make the resin more liquid
for a short period but results in a weaker joint.

--
Cheers,

Bruce in Bangkok
(pbaige125atgmaildotcom)