Polyplex is a specifically formulated, all-acrylic polymer emulsion, which can be used in GFRC mixes to eliminate the necessity for seven-day wet cure.
Until the introduction of the acrylic polymer GFRC products required a seven-day cure in over 95 percent humidity in order to insure full curing of the Portland cement. This usually meant building wet rooms where the product could be stored in the required wet environment.
Where manufacturing was done in an enclosed building,
the provision of a curing area resulted in the loss of valuable
production space. Where manufacturing was essentially performed
outside, the provision of a satisfactory curing area was difficult,
if not impossible.
Principals of the Polyplex polymer curing effect
Because it is thin, compared to conventional concrete (one
half inch compared to three inches or thicker), GFRC without
polymer can lose water by evaporation too quickly. GFRC composites
had to be stored in a wet environment to maintain sufficient
water in the composite and ensure complete hydration of the