Fiber Mold Hardener

Fiber Mold hardener has multiple uses.  It can be used with fiber paper or blanket to create unique slumping molds for your fused glass.  It is also used with duraboard to create a stronger firing surface.  When used with fiber blanket it is perfect for bent panel repair in lamps. Fiber Mold Hardener will gain surface strength after firing to 1300 deg. F.  Easy to apply and sand to a smooth finish. 1 quart.