PU (Polyurethane) Windscreen Replacement Adhesive Sealant (Surtek 451)
Description
Surtek 451 is a high-quality non-sag one component polyurethane adhesive sealant specially designed for aftermarket. It cures on exposure to atmospheric humidity to form a durable elastomer.
Advantages
One component, easy to use;
High elasticity;
Fast curable;
Good adhesion without primer;
Resistant to aging and weathering;
Solvent free, non-corrosive.
Application
Surtek 451 is suitable for the windshield replacement, or bonding/sealing of a variety of materials for vehicle body in aftermarket.
Packaging
310ml cartridge, 400ml sausage, 600ml sausage, 200L drum
Storage and Shelf Life
When stored at the recommended conditions in original, unopened containers, this product has a shelf life of 9 months.
The shelf life of polyurethane sealant is related to the temperature and humidity of the environment. The recommended storage temperature is 5-25° C, humidity is <50% RH. It is strictly prohibited that the transportation or storage temperature is over 30° C or the humidity is over 80% RH. And high-temperature container transportation is prohibited as well. In the long-time high temperature and high humidity storage environment, the product is easy to get viscous, extrusion will be deteriorated and shelf life will be shortened
| Appearance | Uniform Paste |
| Color | Black |
| Density | 1.30 ± 0.05 kg/l |
| Cure mechanism | Moisture-curing |
| Tack-free time* | 30~60 min |
| Rate of cure* | ~3.5 mm per 24 hrs |
| Shore A hardness | ~65 |
| Tensile strength | ≥4 N/mm 2 |
| Elongation at break | ≥450% |
| Tear strength | ≥10 N/mm |
| Tensile-shear strength (without primer) | ≥2.0 N/ mm 2 |
| Glass transition temperature | -45°C, approx. |
Service temperature (continuous)
Short – term (up to 48 hrs) | -40°C to +90°C
130°C |
