Bostik Penetration Primer - 5L

Bostik penetration primer for roofs is a general purpose primer for steel, slate, concrete, asbestos cement, asphalt, corrugated iron etc. It is often essential as a surface treatment prior to use of bituminous adhesives, solutions, emulsions and flashing strips. It is designed to penetrate and seal porous surfaces before application of waterproof protective systems. 

Features 

• Easy to use low viscosity primer
• Excellent surface penetration 
• Application to slightly damp surfaces
• Improves adhesion and sealing properties