(18) Primer-sealer floor varnish. This varnish is used for treating wood and cork floors. It
furnishes a good foundation for wax and other coats of varnish, and it helps fill open-grained wood.
There are two classes of this varnish. One class is made for use on close-grained woods, and the other is
made for use on open-grained, filled woods. Primer-sealer floor varnish is actually spar varnish that is
thinned with turpentine or mineral spirits. When cut with thinner equal to one-half its volume, the
mixture is similar to the class of primer-sealer varnish made for open-grained wood. When cut with
equal amounts of thinner, the mixture is about the same consistency as the primer-sealer varnish made
for close-grained woods.
(19) Interior varnish. Interior varnish is manufactured to use on inside woodwork and floors,
except where the varnish is required to have rubbing qualities.
(20) Interior cabinet rubbing varnish. This varnish is intended for use on interior wood
surfaces where a rubbed finish is desired. It is not a baking varnish for metal, nor is it a suitable varnish
c. Recommended Interior Coatings.
Table 2-6, pages 2-37 and 2-38, is a guide showing the type of coating recommended for various interior
surfaces. This chart is designed for general applications, and many times, variations must be made. It is
always wise to read the label on the container to ensure that the coating is compatible with the surface
and primer being used.