Copolymer BMK-5
Applies to:
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.
Provides:
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.
Specifications
| The name of indicators |
Norm for stamps |
| А |
B |
C |
| Appearance |
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 |
2 |
2 |
2,5 |
| The specific viscosity of the solution of the copolymer in acetone with a mass fraction of 0.5% |
0,16-0,25 |
0,25-0,40 |
— |
| Acid number, mg KOH per 1 g of copolymer, not more than |
0,1 |
— |
— |
| Mass fraction of bound methacrylic acid,% |
3,9-4,7 |
3,9-4,7 |
— |
The copolymer BMK-5 dissolves in acetone, ethyl- and butyl acetate, solvents of grade P-5 and grade 648.
TU 2216-518-00208947-2009
Shelf life — 12 months
OOO KONDOR COMPANY
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