Maxbond PU Primer is a polyurethane primer containing polyurethane prepolymer and quick drying solvents. It is used in substrate preparation to counter the effects of substrate humidity and porosity, to improve application rate of polyurethane coatings and enhance bonding of polyurethane sealants. For use over concrete, masonry and metal surfaces.
Design Features Limitations
• High penetrating ability
• Quick drying
• Excellent bond
Limitations
o Do not apply over damp surfaces
o Do not apply over plastic foams or solvent
sensitive surfaces.
Product Characteristics
Packaging: 16 kg pail
Color Yellowish transparent: liquid
Specific Gravity: 0.95 ±0.05
Volume Solids: ˃40%
Flash Point: ˃25°C / 77°F
Drying Time @ 25°C, 80%: RH 2-3 hour
Surface Preparation
All surfaces must be clean, dry and free from oils, wax and other contaminants. Metal shall be wire brushed and free of rust, paint and other coating.
The Installation
Stir Maxbond PU Primer well before use. Apply by brush, roller or spray at a rate of 0.2 liter per m² depending on
porosity of the substrate. Use only in well ventilated area and keep away from open flame. Let the primer
penetrate the substrate and protect from air borne dust.
Coverage
Approximately 0.2 – 0.3 kg per m2 on smooth surface
Storage
Store in sealed original packaging in well ventilated, cool and dry space away from sunlight and heat source.
Shelf Life
12 months
Health & Safety
This product contains solvent and is flammable. Do not use near open flame or in enclosed space without ventilator or breathing apparatus. Wear protective gloves and safety goggles when handling and avoid excessive inhalation. Upon contact with skin, wash with soap and water. In case of eye contact, flush with water and seek medical attention immediately.
