Chemicals | Liquids | Surface Retarders


Top-Cast is a water-based, top-surface retarder which does not require covering with plastic for protection.  It is available in 12 depths of etch, each one color and number coded for safety and convenience.

See the Top-Cast Demo from World of Concrete 2017:

Top-Cast product information:

TOP-CAST® by GCP Applied Technologies Inc.
Introducing the newest product to the Top-Cast family!

TOP-CAST 01 - Simulated Light Acid Etch to meet specs for the 01 etch level.

TOP-CAST® 01 White

  • Comprehensive range of etch depths
  • Excellent depth of etch control
  • Color and Number coded products
  • Pigmented for ease of application
  • Excellent coverage rates
  • Requires no plastic covering
  • Fast turnaround
  • Low odor

Ideal for cast-in-place flatwork and the top surface of precast concrete panels. The wide selection of grades available provides a comprehensive range of effects, from a simulated light acid wash or sand blast finish up to full exposure of 1-1/4 in. (32 mm) aggregate.