Solvent 647 (á/ï) 3814009090
Solvent 647 consists of a mixture of organic volatile liquids: ethyl acetate, butyl acetate, toluene and butyl alcohol.
Chemical composition of the solvent 647 is almost identical to the composition of solvent 646. It consists of ethyl acetate (21.2%), toluene (41.3%), butanol (7.7%), butyl acetate (29.8%). The solvent also consists of ethyl cellosolve and acetone, being considered more contact, so it is advisable to use a surface for cleaning that is susceptible to other active materials.
Purpose of the solvent.
Solvent 647 is used to dissolve and dilute nitrocellulose paints and varnishes to a working consistency, by introducing it into paintwork materials in small portions, constantly stirring to the required consistency, but not more than the instructions for its use indicate. Solvent 647 is also used to dissolve nitro varnishes and nitro enamels for cars.
Technical characteristics of solvent 647 in accordance with GOST 18188-72.
- appearance and color: slightly yellowish colorless transparent homogeneous liquid without suspended particles; - Fischer mass fraction of water, no more than 0.6%; - volatility for ethyl ether, equal to 8-12 - acid number per gram of solvent, not more: 0.06 mg KOH - coagulation number, not less than: 60%; - suitability for dilution of nitro-varnishes and nitro-enamels: after drying, no whitening of the enamel film should be observed; - dissolving action: after drying,
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