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 180-ml tube will harden 4 - 5 liters of polyester resin.

This is only the Tenax Polyester Hardener - Polyester resin is NOT included! Stock up on the Tenax Polyester Hardener so you don't run out.