Copal Painting Medium Ingredients

Copal painting medium 000 a traditional 19th century painting medium prepared especially for hobbyists and decorative painters ie.

Copal painting medium ingredients. Oil painting medium ii a thin liquid that is typically used for wet in wet techniques. Ingredients ingredients cas number by weight peltlv linseed oil 8001 26 1 550 na d limonene 5989 27 5 400 na section three. 25 oz 8 oz. The copal medium is mixed well with the paint causing the paint to soften but remain thixotropic meaning the paint still captures and retains the stroke of the brush.

Grumbacher copal painting medium product sizes. Not recommended for layering techniques. This amount is enough to make about 300 mil of strong copal painting medium typically one part 19th century copal varnish to two parts walnut oil. Traditional copal painting medium is made from fossilized resins that are exuded from living plants and mixed with linseed oil.

My painting medium consists of oil essential oil turpentine copal varnish and driers. It should only be used in small amounts. Poppyseed oil a thin oil that is typically used for pale colors or alla prima techniques. Taubes copal concentrate composed solely of copal resin and stand oil is used by those who wish to paint in a true resin oil medium and obtain its maximum effect.

Whcn damar a soft resin is used in a painting medium it remains soluble and makes the painting susceptible to damagc by the mildest cleaning agent. Utrecht copal medium is a modern improvement made from a blend of natural copal synthetic resin and refined turpentine. Utrecht copal painting medium 4 oz bottle 000 copal is a natural resin medium historically used by the flemish masters to achieve their strikingly brilliant enamel like glazes. As a painting medium it has the ability to stiffen and solidy sic flake white in a few hours and it can also dry rapidly in.

There is no slumping or leveling as one might expect with the use of regular oil especially standoil or the typical modern day alkyd painting medium. For the corner cases i add a small amount of this or that depending on the case. Tole painters grumbacher copal painting medium is made with a modern synthetic copal resin and has all of the manipulative and drying characteristics of the original 19th century. Copal concentrate is mixed directly with the tube color and this mixture used sic straight or thinned with turpentine.

Copal painting medium will not darken in time any more than the oil with it normally does. Also maroger medium has been shown to darken the paint film over time making its permanence less than ideal. Moderately heated together then one part of turpentine is added to round out the mediumsome who desire flowing leveling paint might add standoil in place of one part of the walnut oil.