Mapei Purtop HA Hand-Applied Polyurea Membrane
Purtop HA is a two-component, solvent-free hand-applied polyurea resin designed for waterproofing of small to medium terraces and flat roofs, and for repairing existing polyurea waterproofing layers. It forms a tough, highly elastic, seamless monolithic waterproof membrane.
| Packaging | 20.7 kg / set |
|---|---|
| Colour | Grey |
| Coverage | Approx. 85 sq.ft (two coats) / 20.7 kg (Actual coverage varies with substrate conditions and application thickness) |
Applications
- Waterproofing of small to medium terraces and flat roofs
- Repair of existing hybrid or pure polyurea waterproofing layers (after proper surface preparation)
Advantages
- Outstanding physical properties — tensile strength of 10 N/mm², tear strength of 40 N/mm, elongation at break over 500%
- Excellent crack resistance — strong static and dynamic crack-bridging even at temperatures below -20°C
- Chemical resistance — good resistance to alkaline substances and diluted acids
- Easy application — no fabric reinforcement required, no added structural load; approx. 20 minutes pot life at room temperature