Tenax Polyester Hardener

Tenax Polyester Hardener is for Tenax Polyester resins. The Polyester resin you purchase does come with hardener, but since the mix ratio is 3% hardener to resin some of our cusomers request extra hardener, because mixing that type of ratio is an inexat science. This 45-ml tube will harden 1 - 1-1/2 liters of polyester resin.

Stock up on the Tenax Polyester Hardener so you don't run out.