Masterflex Primer No. 1 

Masterflex Primer No.1 was developed specifically to ensure maximum adhesion of Masterflex 700 series joint sealants to a wide range of porous building materials.

Priming substrate along with Masterflex 700 series sealants for various porous substrates such as:
• Concrete, brickwork, stone work, fibre cment
• Timber

Features and Benefits:
• Ensures extreme performance and durability
• Enhances adhesion
• Quick application
• Single coat application – economical to use