Modelcote Matt Cote 28ml Bottle. Modelcote Matt Coat is a solvent based varnish that goes on clear and dries clear, overcoming the yellowing effect that is associated with traditional varnishes. This dries with a smooth, low-sheen matt finish. Dries to smooth, low-sheen matt finish. 28ml Bottle. Surface dry in 1 hour. Fully dry after 24 hours. Common plastics used to manufacture model kits including polystyrene and ABS, as well as MDF.