Waterproof Varnish & Heatproof Varnishes

¶ Heatproof Varnishes. These are such varnishes as are made for machinery and similar surfaces which become quite hot. As a rule they contain fish oil, or what is called menhaden oil, because this oil has far greater heat-resisting ability than others.

¶ Waterproof Varnishes. China wood (tung) oil has very great water resisting ability. In fact the raw oil is used in China for coating boat bottoms and for many similar purposes where the surface is subjected to water. Therefore the varnishes which are made to resist contact with moisture are often made with a considerable China wood oil content.

Next Page: Spray Varnish.