PVA422 is a partially saponified, polyvinyl alcohol (PVOH). It has uniform chemical
structure and shows great adhesion, It provides extension of the open time,
flatness during storage under fluctuating air humidity. It offers minimal blocking
tendency even in high air humidity and fast setting after reactivation.
influence on the theology, good remoistening properties and high degree of
tendency even in high air humidity and fast setting after reactivation.

Application:
It is used as a water-activated adhesive raw material. It can also be used as a protective
colloid which can influence the particle size distribution,viscosity, stability to stirring
freeze/thaw stability,pigment compatibility & electrolyte stability. It is recommended
for gumming of paper on the reverse side (e.g postage stamps and labels), coatings
and envelopes. It is suitable for modification of emulsion adhesives. Aqueous solutions
of PVA422 can be added to polymer emulsions that are already stabilized with polyvinyl
alcohol.






