Description
Surtek 3621WR is a one component, moisture-curable polyurethane adhesive sealant. It is non-sagging, of lasting sealing performance. And it has good UV resistance, no black water. The product is manufactured in accordance with ISO9001/ISO14001/TS16949.
ADVANTAGES
Good Adhesion to a wide range of substrates.
One component, easy to use
Non-sagging
UV resistant, no black water
No bubble
Non conducting
APPLICATIONS
1, Vehicle bodies and cab construction including panels, underbody components, and roofing.
2, Front and rear spoilers, auto trim, moldings, body seams, and welded joints.
3, Waterproofing exterior lap seams in many applications, including truck trailers, RV's, metal roofs, window perimeters, grain bins and HVAC units.
4, Waterproofing rivet seams.
5, Sealing of exposed and concealed joints of aluminum, steel, coated metals, wood, roof rails, and door hinges in transport equipment.
6, Sealing and caulking expansion joints, pre-cast concrete panel joints and joints between logs on log homes.
PACKAGING
1.310ml cartridge
2. Flexible Package: 400ml, 600ml
3. Drum: 200L
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 |
| Tack-free time* |
40~80 min |
| Rate of cure* |
~3-4mm per 24 hrs |
| Shore A hardness |
55±5 |
| Tensile strength |
≥4 N/mm 2 |
| Elongation at break |
≥400% |
| Shear strength |
≥10 N/ mm 2 |
| Glass transition temperature |
-45°C, approx. |
Service temperature (continuous)
Short - term (up to 48 hrs) |
-40°C to +90°C
120°C |
Audited Supplier 
Audited Supplier 
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