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To support its extensive line of Handmade Oil Colors, Williamsburg offers a complementary line of tradition-based mediums and other essential painting tools.

Extender Medium —

This semi-transparent extender is composed of marble dust and barium sulfate in linseed oil. Use it to extend oil colors without altering their consistency. Moderate drier. Note: It will increase the tendency of oil colors to yellow. Use as an additive only.

Extender Medium, 32 oz
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