Gypsum Plaster Retarder

Key Documents & Design Files


Extend the set time of conventional, veneer and lime finish plasters and setting-type joint compounds.

Easy to use formulations meet a variety of setting times; allow time for proper plaster application and finishing.

Main Features

Gypsum Plaster Retarders extend the set time of conventional plasters, veneer plasters, lime finish plasters and setting-type joint compounds. By slowing the chemical crystal formation that causes gypsum plaster to set or harden, Gypsum Plaster Retarders allow more time to complete each job. Gypsum Plaster Retarders easily disperse into water prior to adding plaster and are available in the following formulations:
  • Standard Strength Retarderis recommended for slight to moderate (30 to 45 minutes) lengthening of set times for veneer and conventional plasters and setting-type joint compounds
  • High Strength Retarderextends the set time by one to three hours and is especially suitable for machine-applied conventional gypsum plasters
  • Retarder for Lime-Containing Plaster Productsis designed for use with Diamond® Veneer Finish, Red Top® Brand Finish Plaster andRed Top® Gauging Plaster and Lime Finishes

Documents & Files

Submittal Sheets & Specifications

Catalogs & Brochures

SDS, Certifications & Reports