Mapei Primer for Aquaflex is a synthetic resin-based primer in solvent solution to improve the adhesion of liquid flexible membranes (from the Aquaflex Roof range) onto existing bituminous membranes.

Aquaflex Primer is a ready-to-use, synthetic resin-based impregnating solution in solvent with high wetting capacity.

Recommendations

• Do not apply if the temperature is less than +5°C or if it is about to rain.
• Do not apply Aquaflex Primer on wet substrates or substrates with rising damp.
• Do not apply Aquaflex Primer on dusty or weak substrates.
• Do not apply Aquaflex Primer on bituminous membranes that may still bleed oil or plasticizers.
• Do not dilute Aquaflex Primer. The product is supplied ready to use.

Preparation of the substrate

The membrane must be sound, strong, perfectly clean and have no standing water. Remove or repair any damaged, detached or aged areas before priming.

Application of the product

Mix thoroughly before use until completely blended. Apply a coat of Aquaflex Primer onto the clean, dry membrane with a brush, roller or by airless spray (such as with a Taiver Gold 10,000 pump with a 0.021 inch nozzle). Then apply the waterproofing layer using products from the Aquaflex Roof range after waiting the recommended re-coat time indicated in the application data table.