TOP-CAST® PR 300 Penetrating Protector

Chemicals | Liquids | Surface Retarders

Casica | Dayton
Top-Cast PR 300 Penetrating Protector is an easy-to-use, water-based solution that is VOC compliant in all areas. When sprayed on new, exposed aggregate concrete, it makes the concrete more water, stain and abrasion resistant for easier maintenance and longer life.

Top-Cast PR 300 Penetrating Protector is part of the TOP-CAST® Decorative Finish System that is designed to make the Top-Cast application easier while providing various levels of protection with a range of glossy finishes.


Suitable for Commercial and Residential Applications


Choose the finish that you need
CLICK HERE to see the demonstration video for the TOP-CAST PR 300 Penetrating Protector, TOP-CAST CS 400 Cure & Seal and the TOP-CAST HG 500 High Gloss Sealer.


Products in the Top-Cast Decorative Finish System include:

TOP-CAST® SS 100 Site Saver
TOP-CAST® Surface Retarder
TOP-CAST® EX 200 Wash-Off Extender
TOP-CAST® PR 300 Penetrating Protector
TOP-CAST® CS 400 Cure and Seal
TOP-CAST® HG 500 High Gloss Sealer


WATCH NOW! TOP-CAST Decorative Finish System "Instructional Video" - CLICK HERE.

TOP-CAST® is a trademark of GCP Applied Technologies.
gcp 5820 logo (002)



V.O.C. Content: 0 g/L

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  • Easy application, no rinsing required
  • Penetrates, no film to lift or peel off
  • Reduces efflorescence & surface sweating
  • Does not contribute to surface ASR
  • VOC Compliant, can contribute to LEED points
  • Resists stains & dusting, making concrete easier to maintain
Top-Cast PR 300 Penetrating Protector can be applied the same day that Top-Cast Surface Retarder has been removed and once the surface is dry. Suitable for new or existing exposed aggregate concrete surfaces, such as Office Building, Malls, Hotels, Casinos, Restaurants, Governmental: Federal & State Buildings, Patios, Walkways and Driveways.

TOP-CAST® SS 100 Site Saver

Chemicals | Liquids | Surface Retarders

TOP-CAST® Decorative Surface Retarder

Chemicals | Liquids | Surface Retarders

TOP-CAST® EX 200 Wash-Off Extender

Chemicals | Liquids | Surface Retarders

TOP-CAST® CS 400 Cure and Seal

Chemicals | Liquids | Surface Retarders

TOP-CAST® Decorative Finish System

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