ISOFLEX-HYBRID is a hybrid, elastomeric, water-based, liquid waterproofing membrane for flat roofs, based on acrylic and polyurethane resins. Has excellent adhesion to various substrates including concrete, wood, metal and any type of waterproofing membranes and is applicable even to irregular substrates. After curing, it forms an elastic waterproof and vapor-permeable membrane without seams or joints, offering:

•  High elasticity.
• High resistance to weather and aging.
• High whiteness and solar reflectance.
• Improvement of building energy efficiency by decreasing the roof temperature.
• Resistance to ponding water.

Certified according to EN 1504-2 and classified as a coating for surface protection of concrete. CE marked. Certificate No.: 2032-CPR-10.11. ISOFLEX-HYBRID is ideal for waterproofing flat roofs, curved roofs, etc. Constitutes a simple and safe waterproofing solution for roofs details, such as corners, edges and joints between different adjacent materials, as well as for isolated cracks. Furthermore, thanks to its high solar reflectance, it can be used as a cool roof coating.

Substrate preparation
The substrate must be dry, clean, free of grease, loose particles, dust, etc. Any existing cavities in concrete should be repaired in advance. The substrate is then primed with the special primer ISO-PRIMER, with a consumption of approx. 200 g/m2. 

Application-Consumption

a) Full-surface waterproofing
As soon as the primer has dried, ISOFLEX-HYBRID is applied by brush or roller in two layers, with a consumption of 0,5-0,75 kg/m2/layer, depending on the substrate. The second layer should be applied crosswise, after the first one has dried and is walkable. In areas with severe cracks, it is recommended to locally reinforce ISOFLEX-HYBRID with a 10 cm wide strip of fiberglass mesh (65 g/m2) or polyester fleece (30 g/m2) along the cracks. In that case, after the primer has dried, a layer of ISOFLEX-HYBRID is applied along the cracks and while still fresh, the 10 cm wide strip of fiberglass mesh or polyester fleece is embedded lengthwise. Then, two extra layers of ISOFLEX-HYBRID are applied over the entire surface. In case of dense, multiple cracks appearing all over the surface, it is strongly recommended to fully reinforce ISOFLEX-HUBRID membrane with 100 cm wide strips of fiberglass mesh (65 g/m2) or polyester fleece (30 g/m2). These placed strips must overlap by 5-10 cm. In that case, after the primer has dried, a layer of ISOFLEX-HYBRID is applied as wide as the upcoming reinforcement, and while still fresh, a strip of fiberglass mesh  or polyester fleece is embedded. The same application process if followed over the remaining surface. Subsequently, two extra layers of ISOFLEX-HYBRID are applied over the entire reinforcement. Consumption: approx. 2.0-2.5 kg/m2, depending on the substrate and the type of reinforcement.

b) Local waterproofing of cracks
In this case, the substrate is primed only across the cracks to a width of 10-12 cm. After the primer has dried, a layer of ISOFLEX-HYBRID is applied and while still fresh, a 10 cm wide strip of fiberglass mesh (65 g/m2) or polyester fleece (30 g/m2) is embedded lengthwise. Then, two extra ISOFLEX-HYBRID layers are applied along the cracks, completely covering the reinforcement.