RC1 Bituminous Waterproofing Primer
Technical review pending. This reference record is awaiting verification against current manufacturer documentation. Confirm numerical values, product suitability and installation requirements before specification or use.
Overview
RC1 is a liquid bituminous waterproofing primer used as a preparatory coat before applying bituminous membranes or asphalt-based waterproofing systems. It enhances adhesion, seals porous surfaces, and ensures a more effective waterproofing application.
Main Uses
- Primer before applying torch-on bitumen membranes
- Surface preparation for concrete foundations and slabs
- Sealing and priming masonry, concrete, and screed surfaces
- Improves adhesion for asphalt-based waterproofing systems
Technical Specifications
| Property | Value |
|---|---|
| Appearance | Black liquid |
| Base | Bitumen (solvent-based) |
| Application method | Brush, roller, or spray |
| Drying time | 4–6 hours (varies with temperature) |
| Coverage rate | 4–6 m²/L (depends on surface) |
| Flash point | > 40°C |
| Adhesion enhancement | Excellent |
| Compatibility | With all bituminous membranes |
Advantages
- Strong adhesion to concrete and masonry
- Fast drying and easy to apply
- Deep surface penetration and sealing
- Improves performance of waterproofing membranes
- Economical and efficient primer
Application Instructions
- Surface Preparation:
- Ensure surface is clean, dry, and free from dust, oil, and loose particles.
- Mixing:
- Stir RC1 well before application.
- Application:
- Apply using brush, roller, or spray evenly over the surface.
- Curing Time:
- Allow to dry for 4–6 hours before applying waterproofing membrane.
- Storage:
- Store in a cool, dry place away from direct sunlight and ignition sources.
Safety Precautions
- Use in well-ventilated areas
- Wear gloves and safety goggles
- Keep away from heat and open flames
- Refer to the product’s safety data sheet (SDS) for full safety information