I have been using WEST system since 1980. Never a problem. I balance my use of 205 and 206 hardeners for seasonal conditions. Think before you mix. Plan each project. All the best.
[1 of 1 customers found this review helpful]
Great Hardener. I started using 206 slow when I was new with glass, and continue using it today because it provides a comfortable working pace. Setting project next to a space heater expedites curing once project is laid up.