Polyurethane Sealant Supplier Auto Muti-purpose PU Adhesive and Sealant for OEM Auto

 Mutipurpose Pu Sealant      It can be used to seal front and rear spoilers, auto trim, molding, body seams and welded joints.         1. DESCRIPTION It is a one-component, moisture-curable, polyurethane-based, elastic adhesive joint sealant. After curing, it provides a permanently elastic bond to fasten materials with different coefficients of expansion. It is manufactured under system of ISO9001, 4001 and auto industry TS16949.

2. ADVANTAGES
1, Good Adhesion to a wide range of substrates.
2, Cures rapidly to a permanently elastic consistency with excellent cut and tear resistance.
3, Low odor, non-staining.
4, Surface paintable with water, oil, and rubber based coatings.
5, Non-corrosive.
6, Provides shock resistance and vibration damping.
7, Exhibits high recovery (> 90%), making it ideal for sealing dynamically moving joints.
8, Weather resistant

3. 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.   4. Technical Data

Surtek 3351 Technical Data
1	Chemical base	Polyurethane
2	Color	Black
3	Density (DIN 53479)	1.35±0.05 kg/l
4	Non-sag properties	Good
5	Cure mechanism	Moisture-curing
6	Tack-free time	20~60 min
7	Rate of cure	≥3 mm/24hr
8	Shore A hardness (DIN 53505)	60±5
9	Shear strength (without primer)	≥1.5 N/mm2
10	Tensile strength (DIN 53504)	≥4 N/mm2
11	Elongation at break (DIN 53504)	≥400%
12	Tear strength (DIN 53515)	≥10 N/mm
13	Glass transition temperature (DIN 53445)	-45°C approx.
14	Service temperature (continuous)	-40°C to +90°C
	Short – term (up to 48 hrs)	130°C
NOTE: at 23°C and 50% relative humidity
Surtek 3355 Technical Data
1	Chemical base	Polyurethane
2	Color	Black
3	Density (DIN 53479)	1.30±0.05kg/l
4	Non-sag properties	Good
5	Cure mechanism	Moisture-curing
6	Tack-free time	20~60 min
7	Rate of cure	≥3 mm/24hr
8	Shore A hardness (DIN 53505)	60±5
9	Shear strength (without primer)	≥2 N/mm2
10	Tensile strength (DIN 53504)	~ 5 N/mm2
11	Elongation at break (DIN 53504)	400%
12	Tear strength (DIN 53515)	≥10 N/mm
13	Glass transition temperature (DIN 53445)	-45°C approx.
14	Service temperature (continuous)	-40°C to +90°C
15	Short – term (up to 48 hrs)	130°C
NOTE: at 23°C and 50% relative humidity

5. 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.         6.Below is our workshop and office for your reference.          7.Below is the test equipment.