Acraflex RG Primer is a high quality solvent based flexible rubber primer formulated to stabilise highly friable/porous surfaces prior to using Acraflex Rubber Grade.
Acraflex RG Primer may be applied on highly friable/porous surfaces such as concrete, asbestos, cladding, sheeting and guttering. It is light grey in colour and supplied in 5 and 20 litre units.
Number of parts: 1 Application temperature: 2oC to 35oC, R.H. 85% max. Curing time: Approx. 24 hours, but can be overcoated when dry Coverage: 4-5 sq.m. per litre
Please consult the technical data sheet for full product technical data.Acraflex RG Primer Technical Data Sheet Size: (210.89 KB) Acraflex RG Primer Safety Data Sheet Size: (129.23 KB)
Thorough substrate preparation is essential.
All necessary repair work should be carried out prior to application of the coating and the prepared surface should be clean, sound and free of flaking or loose material, moss or fungal growth. Any water, oil or grease must be removed and the surface allowed to dry.
Moss, lichen and fungal growth – remove by stiff broom or jet washing, then treat the area with Polycote Destroy IT to inhibit further growth – Please see the relevant data sheet.
Porous/friable surfaces – such as concrete and asbestos cladding, sheeting and guttering should be primed with Acraflex RG Primer before overcoating with Acraflex Rubber Grade.
Non-porous surfaces – Shiny surfaces should be abraded to allow for better adhesion. It is good practice to inspect and carry out adhesion tests on any existing coating or substrate prior to application of the primer.
Gaps, cracks, joints and holes – Make sure you clean out any gaps, cracks or joints by scraping or brushing off with a stiff brush. Wider cracks or joints should be raked clean, opened out and filled using Polycote Rooflex Sealant.
Allow sealant to cure before applying the primer.
Acraflex RG Primer is not recommended for the treatment of wooden surfaces, tanking, fishponds or any internal use.
Air conditioning vents should be sealed for a minimum of 24 hours during and after the application.
Minimum Finished Fall: when using Acraflex RG Primer it is important that a minimum finished fall of 1:80 is achieved, as stated in BS 6229.2003 (Code of Practice for the application of Liquid Applied Waterproofing Systems to flat roofs with continuously supported coverings).
Do not thin. Stir well before use as separation could occur.
Having prepared the surface, apply Acraflex RG Primer by brush, roller or spray. Apply at a rate so that 1 litre covers an area of 4-5 sq.m.
During application, do not walk on wet coating.
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