Thanks to Fırat’s own-enhanced technology; the 3-layer-produced TPE grey seal shows much more high performance and impermeability than ordinary plastic seals. The TPE grey seal, the 3 layers of that each one includes different formula and raw material, has the permanent deformation value of 35-40%. Plying area is soft plastic, middle body is hard plastic and the vaulted cheeks which are installed through profiles composed of poly-propylen.
TPE grey seal,which is installed to profiles tenaciously by mechanical solutions, ensures great easiness to the producer because of easy and secure welding with profile in the source of thermofix and it can be fixed to the profile during the window production process because of the layers within. TPE grey seal meets the class values of EPDM rubber seal in the air permeability and wind pressure resistancy performance tests.
| TPE SEAL QUALIFICATIONS | |
|---|---|
| Density | 091 ±0,03 gr/cm3 |
| Hardness | 60±5 IRHD |
| Rupture resistance | > 5 N/mm2 |
| Rupture Augmentation | > %250 |
| Permanent Deformation(Under 25% pressure in 100 C 24 hours) | < %50 |
| Aging by heat effect (7 days 100 C) | |
| Hardness differentiation | < %5 |
| Rupture resistancy diferentiation | < %25 |
| Rupture augmentation | > %200 |
| Ozone Resistancy | There is no cracking according to DIN 53509 |