Polycoat is an emulsified thixotropic bitumen protective coating. The coating dries to form a black flexible protective film. The finished film forms a tough barrier to vapor transmission. FIElDS OF APPlICATION Polycoat is used for providing damproofing for below ground concrete structures which are above the water table. This can also be used as the protective coating for built-up roofing systems and other exposed surfaces. The coating is also used as a moisture vapor barrier on block works and concrete surfaces prior to cladding. Application instructions The application temperature should be between 5°C to 55°C. Application procedures may vary slightly depending upon site conditions. The general recommended guidelines for the application of the bitumen coating is as follows: Surface preparation The surface shall be cleaned thoroughly of all contaminants like dust, traces of curing compound, oil and grease. All surface imperfections and protrusions are to be removed and repaired. Structurally unsound and friable concrete must be removed and repaired with a suitable Polycrete* concrete repair mortar. Priming Primer is always recommended prior to coating as it not only penetrates into the concrete pores and seals the substrate. It also acts as an adhesion promoter for further coatings. The primer coat can be made in the site by diluting the same bitumen emulsion with 20% water. The primer may be applied by a brush, roller or airless spray. Allow the primer to dry before any further coats are applied. However, if the primer after application is left open for more than 24 hours after it becomes dry, clean the surface of any settled dust and apply a fresh coat of the primer. TECHNICAl SPECIFICATION PROPERTIES VALUES TEST STANDARDS Form Thick viscous liquid - Color dark brown - Density, [g/cc] 1.02 ±0.02 ASTM D 2939 Solid content, [%] 40±5 ASTM D 2939 Firm set, [hours] 24 ASTM D 2939 Application temperature, [°C] 5 to 55 - Service temp, [°C] 5 to 75 - VOC [g/l] <50 ASTMD3960/D2369