LEFRANC & BOURGEOIS ISOLATING VARNISH

Isolating varnish is used as the 1st varnish in the dual varnishing technique. Acrylic resin base diluted in alcohol, dries instantly. This is the only varnish that cannot be diluted with traditional solvents (turpentine, petroleum). It is used to renew painting by binding the picture layer and preventing any soaking through to underlayers when the final varnish is applied. Available in a 75ml bottle. Price per bottle.