Description
THE LAB ARP MASONRY PRIMER
Professional Penetrating Masonry Primer for Porous & Chalky Surfaces
At a Glance
THE LAB ARP MASONRY PRIMER is a professional solvent-based alkali-resistant penetrating primer developed for porous, chalky and friable masonry surfaces. It penetrates deeply into the substrate, binds loose particles and reduces excessive absorption, creating a stable foundation for decorative coating systems. Its specialised formulation also helps resist alkali attack, fungal and algal growth, UV degradation and substrate leaching for improved long-term performance.
Perfect For
- Plastered walls
- Concrete
- Brickwork
- Fibre cement
- Composition board
- New alkaline masonry
- Chalky or powdery surfaces
- Interior walls
- Exterior walls
- Masonry restoration projects
Key Benefits
- Deep penetrating primer
- Stabilises chalky and friable surfaces
- Excellent adhesion to masonry
- Reduces substrate absorption
- Alkali-resistant formulation
- Helps resist fungal and algal growth
- Improves UV resistance
- Suitable for interior and exterior applications
Quick Specs
| Property | Specification |
| Finish | Matt |
| Coverage | ± 8–10 m²/L |
| Recommended Coats | 1 |
| Touch Dry | ± 30 minutes |
| Recoat Time | ± 2 hours |
| Application | Brush or Roller |
| Clean Up | Mineral Turpentine |
Download
Technical Data Sheet & Material Safety Data Sheet
Download the official THE LAB ARP Masonry Primer Technical Data Sheet & Material Safety Data Sheet for complete application instructions, technical specifications and safety information.
Need Advice?
Not sure which primer is best suited to your project?
Our technical team can assist with product selection, surface preparation and complete coating system recommendations.
Email: info@thelabcc.co.za

