Concrete
Top-Cast® Series (050-075)
Top-surface retarder
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Description
TOP-CAST® is a water-based top-surface retarder. It does not require covering with plastic for protection. It is available in 11 depths of etch, each colour and number coded for safety and convenience.
Each product grade creates a unique degree of reaction to produce the desired effect on the surface mortar. The retarding chemicals diffuse into the paste during the first hours of curing and slow down the cement hydration reaction. During the next 16+ hours of curing the bulk concrete hardens, except where the cement matrix has been retarded. The retarded surface can then be removed by water or pressurized water, revealing the aggregate in the concrete mix.
Application areas
- Ideal for poured-in-place flatwork and the top surface of precast panels
Benefits
- Comprehensive range of etch depths
- Excellent depth of etch control Colour coded products
- Heavily pigmented for ease of application
- Excellent coverage rates
- Solvent free and odourless
- Heat resistance up to 65°C
Packaging
- 205 L Drum
- IBC 1000L
- Bulk
- Pail