Retarder is an additive that delays hardening and curing speed of mortar. It is mainly used to prolong open time and setting time for cement based or gypsum base mortar.

When gypsum meet water, it would become hard in a very short period, which makes operation time of gypsum greatly shortened. Gypsum Retarder can effectively prolong the setting time of gypsum, users can control the initial setting time of gypsum by adjusting different dosage of Retarder.

GUUDPOLY Retarder can be used in various gypsum based mortar, filler, skim coat (wall putty), cement base self-leveling mortar, waterproof mortar, etc.

GUUDPOLY GR41 is produce by degraded polyamids, salified with calcium. It’s a kind of retarder special designed for various gypsum applications.

Physical Specification

Properties / Benefits

GUUDPOLY GR41 provides the following benefits for gypsum based products:

● Prolong initial setting time and final setting time

● Stable rheological properties

● Excellent compatibility in alkaline system

● No Toxic substance.

● Very low effect to final strength

● Biodegradable product

Application

GUUDPOLY GR41 may be used in a variety of gypsum applications as follows:

● Gpysum plaster, skim coat

● Adhesive mortars

● Joint fillers

● Moulding Plaster

● Gypsum Blocks

● Stucco, machinery plasters

● All kinds of gypsum products

For more information, please contact us.