ETA 06/0263
IMPERMAX
The Liquid Applied Roof Waterproofing Kit (LARWK) “IMPERMAX” is designed and installed in accordance with the manufacturer, design and installation instructions, deposited at the IETcc. This LARWK comprises the following components, which are factory produced by the manufacturer or a supplier.
| Components | Trade name | Consumption |
| Primer | RAYSTON EPOXY 100 (epoxy) | 0.3 – 0,5 kg/m2 |
| HUMIDITY PRIMER (epoxy primer in water dispersion) | 0,3 – 0,5 kg/m2 | |
| POROSITY SEALER / PRIMAIRE R4 | 0,15 – 0,25 kg/m2 | |
| POROSITY SEALER FLEX | 0,15 – 0,25 kg/m2 | |
| POROSITY SEALER FLEX 100 | 0,15 – 0,25 kg/m2 | |
| POLYUREA PRIMER | 0,15 – 0,25 kg/m2 | |
| POLYUREA PRIMER FLEX | 0,15 – 0,25 kg/m2 | |
| Internal reinforcement | GEOMAX (Geotextile non-woven)
RAYSTON FIBER 150 (Glass fibre mat) |
—— |
| Waterproofing membrane | IMPERMAX | ≥ 1,6 kg/m2 |
| IMPERMAX QC. Alternative version to IMPERMAX, it has same formulation with <1000 ppm of a moisture-triggering cure catalyst and thixotropic adjustment added after manufacturing and prior to delivery. This helps to improve curing under difficult (cold, dry) conditions | ||
| IMPERMAX ST (<2%). Alternative version to IMPERMAX, it has the same formulation however with a thixotropic adjustment added after manufacturing and prior to delivery that lets the resin to be applied over sloped surfaces. | ||
| IMPERMAX TIXO. Alternative version to IMPERMAX, it has the same formulation however, with a thixotropy adjustment (< 3%) added after manufacturing and prior to delivery that lets the resin to be applied over sloped surfaces. | ||
| IMPERMAX/IMPERMAX QC/ IMPERMAX ST/ IMPERMAX TIXO + IMPERMAX A. | ≥ 2,2 kg/m2 |
This kit can be used for different working life depending mainly of this thickness:
| Working life | Minimum quantity consumed | Minimum thickness (mm) |
| 10 | IMPERMAX/IMPERMAX QC/ IMPERMAX ST/ IMPERMAX TIXO
1,6 kg/m2 |
1,4 |
| 25 | IMPERMAX/IMPERMAX QC/ IMPERMAX ST/ IMPERMAX TIXO
2 kg/m2 |
1,6 |
| IMPERMAX/IMPERMAX QC/ IMPERMAX ST/ IMPERMAX TIXO
2 kg/m2 + RAYSTON FIBER 150 IMPERMAX/IMPERMAX QC/ IMPERMAX ST/ IMPERMAX TIXO 1,5 kg/m2 + RAYSTON FIBER 150 + IMPERMAX A (0,7 kg/m2) |
1,8 | |
| 25 | IMPERMAX/IMPERMAX QC/ IMPERMAX ST/ IMPERMAX TIXO
3 kg/m2 + GEOMAX |
2,2 |
IMPERMAX is a liquid applied roof waterproofing kits based on pure polyurethane, manufactured by the company KRYPTON CHEMICAL, S.L. It consists of a polyurethane resin, liquid-applied, mono-component, elastomeric with or without internal protection layer. IMPERMAX/ST/QC/TIXO reacts with the environmental humidity (direct reaction). IMPERMAX A is moisture triggered cured (indirect reaction).
Once polymerised they conform an elastic lining, in form of a layer completely bonded to different supports (steel and other types of metals, concrete, mortar, ceramic, timber, polyurethane foam and other waterproofing membranes like PVC, EPDM and bituminous). Depending on support condition, other type of primer may be advisable.
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