high quality made in china car polyurethane adhesive and sealant automotive sealant

Surtek 3351

1-C Polyurethane Adhesive Sealant for Aftermarket

Description

Surtek 3351 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;

Non sagging;

Fast cure;

Good adhesion without primer;

Resistant to aging and weathering.

Technical Data

Chemical base                                            Polyurethane  

Color                                                    Black  

Density (DIN 53479)                                       1.35±0.05 kg/l

Non-sag properties                                         Good  

Cure mechanism                                           Moisture-curing  

Tack-free time*                                            20~60 min  

Rate of cure*                                              ≥3 mm/24hr

Shore A hardness (DIN 53505)                                60±5

Shear strength (without primer)                                ≥1.5 N/mm²

Tensile strength (DIN 53504)                                  ≥4 N/mm²

Elongation at break (DIN 53504)                               ≥400%  

Tear strength (DIN 53515)                                    ≥10 N/mm  

Glass transition temperature (DIN 53445)                        -45°C approx.  

Service temperature (continuous)                               -40°C to +90°C  

Short – term (up to 48 hrs)                                    130°C  

*= at 23°C and 50% relative humidity

Packaging   

310ml cartridge, 600ml sausage

Storage and Shelf Life   

When stored at the recommended conditions in original, unopened containers, this product has a shelf life of 9 months (cartridge), 6 months (sausage).   

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.

Caution

The product contains isocyanates, which may cause skin and eye irritation. Avoid eye-contacting and ingestion.   

NOTE

The information and recommendations related to the application and end-use of COMENS’ products are given in good faith based on COMENS’ current knowledge and experience of the products when properly stored, handled and applied under normal conditions. This information must on no account be used as a substitute for necessary prior tests which alone can ensure that a product is suitable for a given use, due to the practical differences in materials, substrates and actual site conditions. Users are requested to check that they are in possession of the latest version of this document and COMENS’ is at their disposal to supply any additional information.