Can I still use EPIC® Part B if it has a hardened layer?
What to do if EPIC® Part B is exposed to moisture or humidity.
If a canister of EPIC® Part B is opened and there is a crystalized film on top, it can still be used as long as at least 90% is still liquid.
EPIC® Part B hardens when it reacts with moisture. If there is a leak and Part B is exposed to air, humidity can cause this reaction. It is safe to use up to 10% less Part B in the mixture in this circumstance.