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Weather Resistance Automotive Sealing Polyurethane Adhesvie Sealant

Basic Info

Model No.:  Surtek 3621WR

Product Description

Model NO.: Surtek 3621WR

Morphology: Paste

Material: Polyurethane

Main Agent Composition: Polyurethane Prepolymer

Promoter Composition: Complexing Agent

Color: Black

Trademark: Surtek

Origin: China

Bonding Function: Adhesive Joint Sealing

Application: Automobile, Construction

Classification: Room Curing

Characteristic: Waterproofing

Composition: Organic Material

Size: 310ml, 400ml, 600ml

Specification: ISO9001/TS16949


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.


Good Adhesion to a wide range of substrates.

One component, easy to use


UV resistant, no black water

No bubble

Non conducting


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.


1.310ml cartridge

2. Flexible Package: 400ml, 600ml

3. Drum: 200L


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

Weather Resistance Automotive Sealing Polyurethane Adhesvie Sealant

Weather Resistance Automotive Sealing Polyurethane Adhesvie Sealant

Contact us if you need more details on Polyurethane Sealant. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Windsreen SesalantAdhesive Sealant. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Pu Adhesive Sealant For Automobile

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