One-component fast-curing aliphatic polyurethane liquid waterproofing membrane for flat roofs:
- Based on elastomeric, hydrophobic polyurethane resins of excellent mechanical, chemical, thermal, UV and weather resistance.
- Forms a continuous, elastic, waterproof and vapor-permeable membrane, without seams or joints.
- Features excellent adhesion to various substrates, like concrete, cement sscreeds, wood and most waterproofing membranes.
- Applicable even to irregular substrates.
- It is color-stable, meaning it doesn’t turn yellow and no additional coating is required.
Certified according to EN 1504-2 and classified as a coating for surface protection of concrete. Certificate No.: 2032-CPR-10.11. CE marked. ISOFLEX-PU 600 is suitable for waterproofing:
- FLAT roofs and balconies, as an exposed waterproofing membrane.
- Gypsum and cement boards.
- Old layers of bituminous membranes.
- Polyurethane foam.
- Metal surfaces.
Substrate preparation
In general, the substrate must be dry and free of grease, loose particles, dust, etc.
1.1 Concrete surfaces
Any existing cavities in concrete should be repaired in advance. Severe cracks must be primed locally and after 2-3 hours must be sealed with the polyurethane sealants FLEX PU-30 S or FLEX PU-50 S.
1.2 Smooth-Non-absorbent surfaces
Smooth and non-absorbent substrates, as well as bituminous membranes or old waterproofing layers, must be primed with the water-based epoxy primer EPOXYPRIMER-500, thinned with water up to 30% by weight. The product is applied by brush or roller in one coat.
1.3 Metal Surfaces
The metal surfaces should be:
- Dry and stable
- Free of materials that might impair adhesion, e.g. dust, loose particles, grease, etc.
- Free of rust or corrosion that may impair adhesion.
Application-Consumption
Before application, it is recommended to slightly stir ISOFLEX-PU 600 until fully homogeneous. Extensive stirring should be avoided though, in order to prevent air entrapment.
