_Cast phenolic resins._—The firms producing cast phenolic resins market them in sheets, rods, and tubes. The castings are made in molds of lead or glass, and the range of possible shapes is limited. The consumers of these products fabricate them into finished form by cutting, turning, and polishing, much as they might fabricate wood or soft metal. Since considerable labor is required per unit, fabrication is not particularly adapted to large-scale production. In 1937 there were nine producers of cast phenolic resins. One of the smaller producers was also a fabricator of cast resins, and another a producer of raw materials used in making the resin. _Tar-acid resins for coatings._—The use of tar-acid resins in surface coatings has been overshadowed by the more rapid development of alkyd resins. Nevertheless the volume of tar-acid resins used as raw materials by varnish and lacquer manufacturers is growing rapidly. They are used in marine varnishes unmodified by other synthetic resins, but to a greater extent in combination with other plastics, especially the alkyds and nitrocellulose. The coating industry includes many units producing on a large as well as a greater number producing on a smaller scale. In general, they are not producing their own tar-acid resins. In 1937 there were 11 producers of tar acid resins for coatings (including the three largest) who confined their activities to resin production. In addition there were eight manufacturers of varnishes and lacquers and one producer of resin raw materials, who also produced tar-acid resins for use in coatings. _Tar-acid resins for miscellaneous uses._—The chief uses for tar-acid resins other than for molding, casting, laminating, and in coatings are as a bonding material, and as an adhesive. These resins form a valuable bonding agent for asbestos in brake linings and chemical tanks, for abrasives and for ground cork in special uses. As an adhesive they are used in making moisture-resistant plywood. In 1937 there were five producers of tar-acid resins for miscellaneous uses, including the largest, who confined their activities to the making of resins and two, including the second largest, who also made products in which these resins were consumed.