Resin PSH-LS  

Resin PSH-LS is a product of additional chlorination of polyvinyl chloride. Contains 62-65% (mass) of chemically bound chlorine.

In appearance, it is a powder, crumb or flakes from white to pale cream in color. It dissolves well in ethyl and butyl acetate, ketones, chlorinated lower aliphatic and aromatic hydrocarbons. In toluene and xylene it swells, forming an inactive gel, in a mixture of xylene and acetone - a highly viscous solution. However, it dissolves well in a mixture of toluene or xylene with acetone and butyl acetate (solvents P-4 and P-5).

Resin PSKh-LS forms colorless transparent coatings with very low moisture permeability, resistant to the action of water, solutions of acids and alkalis, but fragile and with poor adhesion. To increase adhesion, gloss, heat resistance, it is combined with other film-forming substances. Resin PSH-LS is well combined with alkyd-acrylic, polyurethane, fast-drying alkyd, epoxy and other film-forming materials. The widely used dibutyl phthalate and tricresyl phosphate can be used as plasticizers, and sovol (chlorinated biphenyl), chlorinated paraffin, etc. for chemically resistant coatings.

It is used for the manufacture of fast-drying atmospheric, water and chemical paints and varnishes, cold drying and drying at temperatures up to 60 °C.