Before applying the Permatec fully bonded system, ensure the surface of the substrate (concrete, plywood, calcium silicate board, metal/insulation composite, etc.) is properly prepared. Joints, cracks, or interfaces between different substrate materials should be detailed according to Permatec Standard Drawings and Masterspec 4414AP specifications.
Using a suitable spreader or squeegee, apply the first coat of hot Permatec compound to the prepared substrate with a nominal thickness of 3mm. While the Permatec compound is still hot, brush the Permaflash-R polyester reinforcement into it. Ensure all Permaflash-R laps are at least 75mm wide and fully sealed with the Permatec compound. Apply the second coat in the same manner, ensuring complete coverage of Permaflash-R with a nominal coating thickness of 3mm. Finally, protect the second coat of Permatec.