copal varnish

copal varnish

A high-gloss varnish made with a drying oil, such as linseed oil, and copal.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in classic literature ?
As he wanted something that could be carried openly in the hand, I proposed to make use of an old one- gallon copal varnish can I happened to have by me.