EWI-301 Water Based Substrate Primer EWI- 301 Water Based Substrate Primer is designed for priming various different absorptive substrates including ordinary and cellular concrete (e.g. aerated concrete), walls made of bricks, blocks and structural clay tiles, plaster coats, gypsum panels and gypsum plaster boards. It is applied to the substrate prior to the application of paints, adhesives, cement or cement and lime-based plaster coats, skim finish products, ceramic tiling, floor screeds and even wallpapers. Preparation Water Based Primer comes ready to use in 5-litre jerrycans. The product should be mixed within its container before use. It should not be diluted with water or any other material. Application For best effects, do not add water and apply using a brush or roller. Weak substrates that need to be strengthened and highly absorptive substrates should re-primed after about 4 hours. Dispersion paints, surface finish products or adhesives should be applied after at least 24 h since priming. Works must not be carried during rain or snow, strong winds and in direct sunlight, without special protection to limit exposure to weather conditions. Recently rendered coats must be protected against rain, frost and over-rapid drying. Water Based Substrate Primer Application Conditions Application temperature (air, substrate, materials): from 5°C to 25°C Quantity to be used: approx. 50-300 ml/m2 depending on substrate structure and absorptive capacity) Coat drying time: approx. 2-4 hours Time to painting or plastering: after about 24 h since priming Colour: colourless when dry Water Based Substrate Primer Storage Conditions EWI-301 Water-Based Primer is available in 5-litre plastic jerrycans. Shelf life: up to 12 months from the date of manufacture. Keep dry and in the original packaging at a temperature of 5°C to 25°C.
