EcoThane Dry Porous Flex is a single component product to seal Timber and Felt prior to the application of the EcoThane waterproof system. Designed for flat & low pitch roofs. Features Coverage: 26.6m² per 4kg Fast cure allows same day application of waterproofing Timber, Felt Preparation Ensure the surface is fully cleaned and free from loose material, grease and chippings. If possible clean the surface with a power washer and allow to fully dry prior to product application. Repair all damages and fill all voids. Application Designed to seal timber and felt Typical Application rate 0.15kg m² Typical cure time 4 hours (Application rates and cure time will vary depending on surface, temperature and weather conditions, do not apply if rain is forecast within the highlighted cure times). Apply primer using a brush or short pile roller.