assembly materials: sealants
Pur foam
One-component, semirigid polyurethane insulation, sealing foam containing environmentally friendly expansion gas.
Features:
- it is characterized by the correct machining time and initial efficiency
- it is distinguished by dimensional stability, elasticity, fast growth, final yield and even, regular surface texture
- after application, it expands and cures under the influence of moisture contained in atmospheric air and building materials
- it has a high expansion capacity in working gaps
- it is a very good thermal, acoustic and anti-moisture insulation
- after hardening chemically natural, resistant to a wide range of temperatures and development of fungi and mold
- adhesive to horizontal and vertical surfaces – it does not drip
- ensures stability and flexibility of assembled elements
- does not contain (H) CFC, PCB and formaldehyde
| Specific weight | 16-24 g/l* |
| Base | poliuretan |
| Efficiency | w zależności od temperatury i wilgotności powietrza:* |
| 300 ml – 12 to 15 liters | |
| nbsp; | 500 ml – 20 to 27 liters |
| 750 ml – 30 to 45 liters | |
| Dust-free | 10-15 minut* |
| Processing time | 60-100 minut* |
| Curing time | 5-24h (full mechanical load) *
Free air access is necessary. Foam should not be used in tightly closed rooms. |
| Resistance to UV | weak
In external applications, the surface of the foam should be protected against UV radiation. |
| Cell structure | approximately 70% of aligned, equally closed cells |
| Thermal resistance after curing | -40oC to +90oC (short-term up to + 140 ° C) |
| Expansibility | from 100 to 150% within 30-45 minutes after application * |
| Tensile strength | according to DIN 53456: 0,14 Mpa |
| Resistance to bending | according to DIN 53423: 0,28 Mpa |
| Shear strength | according to DIN 53422: 0,48 Mpa |
| Dimensional stability | -5%* |
| Insulations | 30-35 mW/mK |
| Flammability class | according to DIN 4102-1: B3 |
(*) – strong dependence on the ambient temperature, air and substrate humidity, can temperature, method of application, cross-section of the applied layer, wetting of the substrate, etc.
