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Bostik Cempolay Universal Primer is a bonding agent for non-porous surfaces including power-floated concrete, ceramic and quarry tiles, rigid metal, terrazzo, asphalt and surface membranes, and a primer for porous substrates such as sand cement and timber. You can use this product before applying any of the Cempolay range of smoothing compounds to improve flow and curing.
• Water-based, solvent-free, acrylic dispersion primer
• Minimises pinholes and reduces the need to rub down