Henkel Rubberised Bitumin Emulsion RBE 5
Characteristics ► Cold applied ► Single component, easy to apply ► Can be applied on damp substrates ► Can be applied in closed or confined areas. ► Water based ► Good resistance against chloride and sulphate ions ► Has good adhesion to most building substrates ► Seamless/joint free ► Prevents fungal growth
DESCRIPTION Polycoat RBE is an emulsified rubber modified bitumen coating, which dries to form a tough, seamless, flexible vapor proof protective coating. Polycoat RBE conforms to the requirement of ASTMD 1227 Type lll, class 1
Fields of application Can be used for a wide variety of applications, which includes the following: – protective coating on concrete foundations – curing compound on freshly cast concrete structures – dampproof membrane in sandwich constructions – vapor proof barrier coating 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 system is as follows:
Surface preparation The surface shall be cleaned thoroughly of all contaminants like dust, traces of curing compound, oil and grease. Light mechanical grinding/grit blasting/high pressure water jet may be used to clean the surface of all the contaminants depending on the degree of contamination on the surface to be coated. All surface imperfections and protrusions shall be removed and repaired. Structurally unsound and friable concrete must be removed and repaired with a suitable Polycrete* concrete repair mortar.
Priming It is highly recommended to apply a priming coat prior to the application of the Polycoat RBE coating on the substrate. The primer can be prepared in the site by diluting Polycoat RBE with 20% water and applying this diluted coat as the primer. For very dry and porous substrates apply two coats of this primer. The primer can be applied to damp or freshly cast concrete surfaces also. However, it should not be applied on waterlogged or flowing water areas. Further coats shall be applied only after the primer coat dries off completely. In case of delay in application of the top coat for more than 24 hours, a fresh coat of primer shall be re-applied. Foundation Dampproofing Stir the contents of the drum thoroughly before application to remove all sediments. Depending on the dry film thickness required, apply the rubberized bitumen coating @1–4m²/L./coat. For highly demanding situations, it is recommended to apply in multiple coats to achieve required thickness. On vertical areas, it is recommended to apply the coating in multiple layers in order to avoid sagging of the heavy bodied coating.