Astral Trubuild WPC 666 20KG
Astral WPC 666 is an elastomeric, acrylic-based waterproofing compound from the company's TRUBUILD line, used as an exterior protective coating. It is designed to prevent water and moisture from entering walls, roofs, and other exterior surfaces.
Key features
- 7-year performance warranty and 5-year waterproofing warranty.
- Waterproof barrier: Creates a durable, seamless barrier upon drying.
- High elongation: Can stretch up to 250%, allowing it to bridge minor cracks in the substrate.
- UV and weather resistant: Withstands extreme weather conditions, including UV radiation, rain, and heat.
- Insulation: Offers some insulation capability.
- Tintable: Can be tinted to match the desired color.
- Self-priming: Can achieve up to 150 microns DFT (Dry Film Thickness) with self-priming.
- Application: Can be applied with a brush, roller, or spray equipment.
Application areas
- External facades and masonry walls.
- Sloppy roofs, corrugated sheets, and terraces (in non-trafficable areas).
- Concrete surfaces.
- Stone walls and asbestos sheets.
How to apply
- Prepare the surface: Remove all loose, unsound material, dust, dirt, oil, and existing peeling paint. For cracks up to 5 mm, fill with a crack filler paste.
- Apply a primer coat: Mix the WPC 666 with up to 30% water and apply one coat. This seals the pores and reduces material consumption.
- Apply topcoats: After the primer coat has dried, apply two undiluted coats of WPC 666. Apply the first coat horizontally, allow it to dry for 5–6 hours, and then apply the second coat vertically.
- Allow for curing: The coating should be air-cured for a minimum of 7 days before any ponding tests.
It's important to note that the coating should not be applied to surfaces with excess moisture to avoid blister formation.
Download Technical Datasheet (TDS)