Mapei Primer L

Mapei Primer L – Advanced Acrylic Latex Primer for Concrete & Gypsum

Bond Better. Build Stronger.

Mapei Primer L™ is a concentrated, solvent-free acrylic latex primer designed to enhance the bond between properly prepared substrates and self-leveling underlayments. Tinted green for easy visual coverage, Primer L is a trusted solution for professionals preparing concrete or gypsum surfaces for flooring installations.

Key Features:

• Superior Bonding: Improves adhesion between concrete or gypsum substrates and self-leveling underlayments.
• Versatile Use: Suitable for concrete, cement screeds, mortar beds, and gypsum-based underlayments and patches.
• Low Odor & Low VOCs: Ideal for indoor applications with minimal environmental impact.
• Quick-Drying: Fast turnaround for efficient project scheduling.
• Easy Application: Brush or broom applied; tinted green for clear coverage visibility.

Recommended Applications:

• Priming concrete before applying self-leveling compounds
• Preparing gypsum-based underlayments and patches
• Use between layers of MAPEI self-leveling underlayments

Technical Specs:

• Dilution Ratio: Typically 1:3 (water to primer)
• Application Thickness: 3 to 5 mils wet film
• Drying Time: Minimum 3 hours before underlayment application
• Open Time: Up to 18 hours for recoating or underlayment installation
• Limitations: Not suitable for substrates with standing water or those subject to freeze/thaw cycles

Why Choose Mapei Primer L?

With its advanced technology, eco-friendly formulation, and proven performance, Primer L is the go-to choice for contractors and flooring professionals seeking reliable substrate preparation. Whether you're working on a commercial renovation or a residential upgrade, Primer L ensures your underlayment adheres securely and performs optimally.