POLYCOAT RBE 5
Characteristics
► Cold applied.
► Single component, easy to apply.
► Can be applied on damp substrates.
► Asbestos free, odorless. Can be applied in closed or confined spaces.
► Non-toxic.
► Environmentally friendly. Low VOC.
► Resistant against chloride and sulphate ions.
► Has good adhesion to most building substrates.
► Seamless/joint free.
DESCRIPTION : Polycoat RBE 5 is rubber modified bitumen emulsion coating, which dries to form a tough, seamless, flexible vapor proof protective coating.
Fields of application : Polycoat RBE 5 is used as a protective coating for cladding works to prevent infiltration of vapour and moisture into the building structure.
Application : Application procedures may vary slightly depending upon site conditions. The general recommended guideline 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, 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 concrete repair mortar.
Priming : It is highly recommended to apply a priming coat prior to the application of the Polycoat RBE 5 coating on the substrate. The primer can be prepared in the site by diluting Polycoat RBE 5 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.
Application : 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. On vertical areas, it is recommended to apply the coating in multiple layers in order to avoid sagging of the heavy bodied coating. Subsequent coats shall be applied only after the previous coat dries off completely and shall be applied at right angles to the previous coat. Clean dry sand may be broadcasted onto the wet coating to provide a key for the subsequent coats and achieve a greater dry film thickness. Care shall be taken to ensure that the first coat is not punctured during the application of the second coat. However, if the coating is damaged, the area can be readily over coated provided the surface preparation is done properly.
COVERAGE : Coverage rate will depend on the porosity of the substrate. The following coverage rates can be expected when the coating applied at different coverage rates: i. 4 m²/L/coat: 0.1mm DFT ii. 2m²/L/coat: 0.2mm DFT.
CLEANING : Clean all tools immediately after use with clean water. Hardened material can be cleaned with a solvent.
STORAGE & SHELF LIFE : Store under cover, out of direct sunlight and protect from extreme temperatures. Shelf life is up to 12 months in un-opened condition and when stored as per recommendations. Failure to comply with the recommended storage conditions may result in premature deterioration of the product.
HEALTH & SAFETY : As with all bitumen products caution should always be exercised. Protective clothing such as gloves and goggles should be worn. Treat any splashes to the skin or eyes with fresh water immediately. Should any of the products be accidentally swallowed, do not induce vomiting. Call for medical help immediately. Ensure that the container is available for medical attendant to examine any relevant instructions and content details.