Overview
MC1 asphalt primer is a medium-curing liquid asphalt-based material used as a primer or bonding agent before applying asphalt layers or waterproofing membranes. It penetrates concrete and masonry surfaces, enhancing adhesion for subsequent layers of asphalt or bitumen-based systems.
Main Uses
- Surface primer before applying asphalt layers
- Bonding agent for waterproofing membranes
- Used in road works before tack coat application
- Enhances adhesion of bituminous layers on concrete
- Suitable for bridges, parking lots, and building foundations
Technical Specifications
| Property | Value |
|---|---|
| Appearance | Dark brown to black liquid |
| Base | Medium Curing Cutback Asphalt |
| Specific Gravity | 0.95–1.00 |
| Flash Point | >38°C |
| Application Temperature | +5°C to +45°C |
| Drying Time | 2–4 hours (depending on weather) |
| Viscosity | 70–250 SSF (Saybolt Furol Seconds) |
| Penetration Capacity | High |
| Coverage Rate | 0.3–0.6 L/m² (varies by surface type) |
| Storage Temperature | 10°C to 50°C |
| Shelf Life | Up to 12 months in sealed container |
| Flammability | Flammable – store and handle with care |
Advantages
- Excellent surface penetration
- Improves bonding between concrete and asphalt
- Easy application by brush or spray
- Quick drying under normal weather conditions
- Economical and effective for preparatory priming
- Compatible with most bituminous waterproofing systems
Application Cases
- Primer for waterproofing membranes in basements
- Asphalt primer for road pavement layers
- Pre-treatment of concrete bridges and viaducts
- Roof decks before applying bituminous felt
- Commercial plazas and industrial foundations
- Residential building foundations requiring asphalt bonding
Installation Tips
- Surface must be clean, dry, and free of dust or oil
- Stir material well before application
- Apply with a brush, roller, or spray equipment
- Allow full drying before placing membranes or tack coat
- Avoid application during rain or on wet surfaces
- Ensure proper ventilation during application
