polyvinyl alcohol borax PVA for sale,polyvinyl alcohol borax PVA exporters and manufacturers

HOPEWAY fine powder PVA HWP-05S,HWP-20S and HWP-24S are specially designed for cement additives and building

industry.They improve plaster properties such as flexibility,water retention,and increase plaster viscosity as

well.In addition,they do not only reduce the friction of plaster but also enhance its working capacity and quali-

ty.(Prevent cracking and shedding of plaster,increase adhesion and smoothness of cement.) To mix desired

amount of PVA with cement well before water is added prevents the lumping of PVA.

b.construction :upholstery industry 107 glue, it's used as an additive of cement and mortar, inner and outer wall paints, and moulding board binder.

c.chemical industry: it's used as a polymer emulsifying agent, dispersing agent and used to produce PVOH formal, PVOH acetal and PVOH butyral.

d.paper industry:It's used as an adhesive in lumbering and paper-making industries.

PVA solution of above-mentioned grades can be applied to the mold by brushing or spraying. The viscosity of

the selected grade and concentration determine the thickness of release coating. About 10 to 30 wt % of solid

content is recommended for this purpose. Up to 15% of plasticizer, such as glycerol or ethylene glycol, relatively

to the weight of PVA, can be added to the formulation to improve the flexibility of mold release film.

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