Ingredients

100gr of mastic
100gr of fineset artist`s linseed oil
Quality turpentine

Preparation

1. Fill a jar with a weight of mastic and cover it with turpentine.
2. Stir and shake it for a week until almost all of the mastic dissolves and only a thin layer at the bottom remain which just won`t dissolve.
3. Decant off the liquid and mis it with a weight of linseed oil equal of that of the dry mastic you started with.
4. Mix the two.

How it works

Mastic is a strong dryer and as the only one resin available it bonds chemically with linseed oil without the need of heat. In other varnishes mastic is used as an additive to improve brushability, here it also servers this function.

Characteristics

This varnish is soft, prone to damage, selfhealing, smells beautifully, sometimes suffers from thermoplasticity {thumb test}, and the curing times can be quite long.

Can be used in conjunction with tar, which adds depth to the othervise almost colorless varnish. Adding too much tar causes the varnish not to cure properly {stays tacky indefinitely}.

Category: Varnish recipes