Explanatory notes
… consist of waxes (of all kinds) to which resins, shellac, rubber, resin esters, etc., are often added to increase the … addition of other materials (e.g., waxes, oils, bitumens, rubber, brick powder, lime, cements or any other mineral … types described below (e.g., those based on plastics or on rubber). The mastics and cements of this group serve many …
