Superseal 

Separator varnish for acrylic resins and gypsum

Features and benefits:

Ventura Superseal dries very quickly and allows for perfect separation. 
It does not contaminate the resin or the colour.
Great stability without layer formation.
Gives the gypsum a smooth, high-gloss finish.

Especially indicated for:

Quick-drying separator varnish for gypsum-to-gypsum and gypsum-to-acrylic resins.
The application of this product allows for easy separation of the acrylic after polymerization (both autopolymerization and thermopolymerization) without altering its dimensions.
It is also an ideal separator agent in the fabrication of provisional restorations and for repairing acrylic structures that require gypsum molding.