Explanatory notes
… by the fact that they are applied in thick coatings or layers. It should be noted, however, that this group of … resins (shellac, damar, rosin) or plastics (alkyd resins, polyesters, coumarone-indene resins, etc.), intermixed and … dowels, hooks, etc. (9) Mastics based on plastics (e.g., polyesters, polyurethanes, silicones and epoxide resins) …