Promac Plasterlock is a high-performance, water-based bonding agent and keying liquid designed to improve adhesion on cementitious and plastered surfaces. Formulated with advanced polymer technology, it creates a strong mechanical bond between surfaces, ensuring coatings and plaster systems adhere effectively and last longer.
 
Ideal for use as both a bonding agent and mortar additive, Plasterlock enhances the strength, flexibility, and water resistance of cement and plaster mixtures. It also stabilises friable or chalky surfaces, sealing porous substrates and creating a uniform base for further application.
 
Whether used in preparation for plastering, repairs, or painting, Promac Plasterlock ensures a durable, crack-resistant surface—making it an essential step in professional surface preparation.

Technical Data Sheet.
Safety Data Sheet.