CERESIT® R 755 Epoxy Safety Primer is the most powerful weapon against rising moisture in CERESIT´s primer segment. It reliably seals cement screeds up to a residual moisture content of up to 6 % CM and concrete floors up to 7 % CM moisture. It is also suitable for strengthening difficult substrates.Available canister size: 7+12 kg
The substrates must be clean, crack free, sound, dry, and free of substances that would impair adhesion.
Lift the top container slightly to allow the hardener to drain completely into the canister below. Then carefully mix resin and hardener using a hand drill with stirring attachment for at least 2 minutes. If available, use a continuously adjustable stirrer.
Apply a generous coat of CERESIT R 755 with a lamb- skin roller. For blocking the capillary rise of moisture or residual moisture in concrete floors or cement screeds, a second coat must be applied crosswise not later than 48 hours after the first coat has dried.
Can be used for sealing old, existing substrates and mastic asphalt before direct bonding with elastic wood flooring adhesives (plasticizer barrier).
Approx. 5 kg grain size 0.4 – 0.8 mm/approx. 5 kg grain size 0.2 – 2 mm/1 kg CERESIT R 755.
Only carry out floor installation work if the floor temperature- is above 15°C, air temperature above 18°C and relative humidity below 75 %.