Thanks for telling me which tools to use to remove the uncured epoxy.

What's a "side grinder"? Is it the same as a surface grinder that
another newsgroup member has suggested? I probably will go easy with
using power tools; the reason is that the area underneat the uncured
epoxy is just a thin layer of the inner skin of the cored deck. I
probably want to stick with hand tool such as a green pad, a wire
brush, a paint scraper, and white-vinegar.

Jay Chan


Raynaud wrote:
@#@

It most definitely has to come off. It will never cure properly. Get
yourself an small side grinder everyone makes
one now, get the rubber backing plate attachment and use very coarse open
coat sanding disc 10-60 grit it removes rubbery material fast. Epoxy is
notorious for ruining cutting tools and clogging sand paper good luck

Ray

wrote in message
oups.com...
I would like to get some opinions on whether I should remove partially
cured epoxy in one large area of my deck.

Due to my failure to follow instruction in mixing epoxy and failure to
do a test batch before using a new type of hardener, I had not
thoroughly mixed the epoxy long enough when I installed the core
material onto the deck. The result is that the epoxy cures very very
slowly:

- After one day, I felt that the epoxy was still wet.

- After three days, I still could use my thumb to dent the epoxy.

- After ten days (today), it is solid enough that I cannot use my
thumb to dent it; but I still can use my finger nail to dent its
surface. And I definitely cannot sand it yet.

What should I do?

Should I wait another week or so to see if it may completely cure? I
can afford to wait because I can do something else while I wait; but I
am not sure if the epoxy will be strong enough even if it is seemingly
cured.

Should I remove everything and start this over? Unfortunately, this
will be very labor intensive to remove the partially cured epoxy.

The epoxy is from MAS and the hardener is MAS slow hardener. The brand
name may or may not matter.

Jay Chan