Exposed Aggregate Retarder is a concrete surface retarder suitable for use on horizontal surfaces to produce decorative exposed aggregate finishes or profile surfaces for subsequent toppings, overlays or membranes.
Exposed Aggregate Retarder, applied to fresh, green concrete, retards the surface mortar set eliminating the needs for costly sandblasting or acid washing.
Uses
- Horizontal concrete surfaces only
- Suitable for precast panels, sidewalks, driveways, and patios
- Leaves rough surface to improve mechanical bond for keyway joints, waterproofing membranes and cementitious coatings
Advantages
- Tinted formulation insures even coverage and performance
- Easy to apply with standard pressurized spray equipment, brush or roller
- Less costly than sandblasting or green cutting
- Aggregates remain clean and sharp with no residue to neutralize
- Use on adjacent masonry or reinforcing steel to reduce cleaning procedures
- Eliminates environmental dangers associated with acid washing or other chemical methods
- Provides uniform depth of retardation up to 0.25” (6mm)