Protective Waterproof Coating

A thick flexible copolymer latex coating that forms a tough continuous membrane with waterproof properties and resistance to weathering. It is designed to weatherproof and protect old and new roofs, joints, facades, walls and masonry. It is often used to protect surfaces from further erosion.

• Can be applied to concrete, brick, blockwork, asphalt, roofing felt and asbestos cement.
• Ideal for natural stone, quarry tiles, plaster and slate.
• For metal and steel, priming is needed before application.

Ensure remove all loose flaking and foreign materials by wire brushing or scraping. Avoid wire brushing on asbestos surfaces as hazardous fibres may be released. Larger cracks and gaps can be treated with a strip of open-weave glassfibre.

Application
PYE FLEXI-SEAL can be thinned down with about 5% water for the first coat. Stir well before use. Apply the first coat as a primer. Follow with undiluted product as the second coat. Apply using a brush, roller or airless spray. Apply horizontally for the first coat and vertically for the second or vice versa. The substrate may be damp, but there must be no actively percolating water. The second coat should be applied as soon as the first is tack-free (about 4 hours depending on humidity). Do not apply if rain is anticipated.

Note: PYE FLEXI-SEAL must be applied in a minimum of 2 coats and must not be applied more than 2kg/m² in a single layer.

Cleaning of Equipment
Clean all tools and application equipment with clean water immediately after use. Hardened or cured material can only be removed mechanically.

Technical Information

Storage Conditions
Store properly in dry conditions, in undamaged and unopened, original sealed packaging. Keep away from direct sunlight, rain, water and moisture.