MID-CURE™ 15 min.epoxy is used in larger areas where more working time is needed. It is more water resistant and can be used as a substitute for QUIK-CURE™ in most applications. MID-CURE™ is our most flexible epoxy and is ideal for gluing to fiberglass surfaces. Allow 45 minutes before handling parts and 2 hours for full strength. It is an equal 2 part hobby adhesive that forms high strength bonds through a chemical reaction between the resin and hardener. The cured epoxy is resistant to most chemicals. It can be worked for about 10 minutes with adhesion beginning after about 15 minutes.