Denny wrote:
Assuming the curing temperatures are above 60 degrees and it is still
rubbery, you are hosed, it will never become hard and will get sticky
and nasty in hot weather... Plan on grinding it away... Consider a wire
brush mounted on a healthy drill motor (1/2") and lots of elbow
grease...
MAS is a fine product, I went through a couple of gallons on the past
month when I ran low on WEST...
denny - who has had every problem possible with epoxy...

The temperature is well over 60. The area is under the sun and is
covered with a boat cover, and the area is really really hot inside the
boat cover. Therefore, temperature should not have anything to do with
this problem. In other words, the epoxy is really in trouble, or I
should say "I am really in trouble".

I don't think there is anything wrong with MAS. This is just that
their Slow Hardener seems to be more sensitive to mixing error (their
Medium Hardener is more forgiving). I have been able to get away with
mixing not long enough using their Medium Hardener and still get epoxy
cured just fine. Unfortunately, when I switched to their Slow
Hardener, I forgot to do a test batch first, and I will have to suffer
from my own error.

Oh well...

Jay Chan