in paint and varnish and chemical industry — as a film-forming in the production of soils, varnishes, enamels, adhesives;
in construction — as a binder component in the manufacture of solutions with fillers (chalk, cement, etc.)
It is a copolymer of methacrylic acid and its ester.
elasticity of lacquer films and resistance to abrasion, atmospheric air, light, chemical reagents (especially gasoline);
high adhesion to metal, glass, porcelain, wood, concrete and other surfaces.
|The name of indicators
||Norm for stamps
||Beads of white color
||Beads or lumps of white or yellow
|Appearance of the copolymer solution in the solvent of grade 648
||Colorless or slightly yellowish. Weak opalescence and the presence of a small amount of mechanical impurities
|Mass fraction of water,%, not more than
|The specific viscosity of the solution of the copolymer in acetone with a mass fraction of 0.5%
|Acid number, mg KOH per 1 g of copolymer, not more than
|Mass fraction of bound methacrylic acid,%
The copolymer BMK-5 dissolves in acetone, ethyl- and butyl acetate, solvents of grade P-5 and grade 648.
Shelf life — 12 months
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