Acrylic Bonding Primer 905™
Designed for strong adhesion, Acrylic Bonding Primer 905 is a durable, water-based primer that prepares roofing surfaces for topcoat application. Its versatile formula enhances bonding on previously coated metal, smooth and granulated modified bitumen, and built-up roofs.
- Excellent adhesion to a wide range of roof surfaces
- Bonds to unstable and weathered substrates
- Forms a tough, durable adhesive film
- Quick-drying formulation for efficient application
- Environmentally friendly coating system
- Easy-to-apply, water-based formulation with simple clean up
- Non-toxic and VOC-compliant coating system
- Solids by Volume
- 38% ± 2%
- Tensile Strength
- N/A
- Viscosity
- 600-800 cps
- Weight per Gallon
- 8.4 ± .2 per gallon
- Flash Point
- N/A
- Permeability
- N/A
- Dry Time
- 1-2 hours
- Service Temperature
- -40° to 200° F
- Modified bitumen
- Metal
- TPO
- PVC
- EPDM
- Spray polyurethane foam
- Smooth built-up roofing
- Concrete
- Surface Preparation
Ensure the surface is clean, dry, and free of contaminants. Pressure wash (2,500–3,500 psi) if necessary. Some substrates may require mechanical abrasion for better adhesion.
- Mixing/Thinning
Stir thoroughly before use. Do not thin unless specified in product instructions.
- Application Methods
Apply using a brush, roller, or airless sprayer in a thin, even coat. Avoid pooling or over-application.
- Dry Time
Allow to dry completely before applying the topcoat. Dry time varies with temperature, humidity, and substrate but is typically 30 minutes to a few hours.
- Limitations/Precautions
Do not apply below 50°F. Avoid application if rain is imminent, as water-based primers can wash off before drying. Confirm compatibility with the intended coating system.
- Storage/Handling
Store in a cool, dry place, away from freezing temperatures. Keep containers sealed to prevent contamination.
- Cleanup/Disposal
Clean tools and equipment with soap and water immediately after use. Do not dispose of liquid primer in drains or waterways. Follow local regulations for disposal.
