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Quick Details

  • CAS No.: 63148-52-7
  • Other Names: Pu Adhesive Sealant
  • MF: C6H7NO2
  • EINECS No.: 231-545-4
  • Place of Origin: Beijing, China (Mainland)
  • Classification: Other Adhesives
  • Main Raw Material: Polyurethane
  • Usage: Transportation
  • Brand Name: COMENS
  • Model Number: Surtek 3351,3355,3356,3358,3621
  • Type: vehicle windshield replacment
  • Color: Black, White, Grey
  • Shelf life: 6-9 Months
  • Certificate: MSDS, ISO, SGS
  • Density (DIN 53479): 1.30±0.05kg/l
  • Cure mechanism: Moisture-curing
  • Tack-free time: 10~65 min
  • Rate of cure: ≥3-5mm/24hr
  • Tensile strength: ~ 5 N-7N/mm2
  • Application: windshield bonding
  • Keywords: vehicle windshield replacment

Packaging & Delivery

Packaging Details 310ml cartridge, 400ml sausage, 600ml sausage, 200L drum
Delivery Time 1-2 weeks
About Us

Beijing Comens New Materials Co., LTD is a listed company in China (“Comens Materials”, Stock Code: 300200.SZ) committed to providing professional solutions for bonding (including lamination, wrapping, etc.), sealing and protection in the field of soft packaging, assembling, construction, furniture and building materials, etc. Series of adhesive, sealant, resin and coating have been developed based on polyurethane and acrylic. With the wide product range, good reputation and high market share in China, Comens has been recognized as a leading manufacturer in China and Asia in the field of polyurethane adhesives and sealants.

Following the mission of “satisfy diversified demand, provide professional service”, Comens is striving to be a worldwide competitor in polyurethane adhesives, sealants and coatings. 

Product Code

Surtek 3355: General grade(auto glass replacement)

Color: Black
Density (DIN 53479): 1.30±0.05kg/l
Non-sag properties Good
Tack-free time: 20~60 min
Rate of cure: ≥3 mm/24hr
Shore A hardness (DIN 53505): 60±5
Shear strength (without primer): ≥2 N/mm2
Tensile strength (DIN 53504): ~ 5 N/mm2
Elongation at break (DIN 53504): 400%
Tear strength (DIN 53515): ≥10 N/mm

Surtek 3351: Economy grade (auto glass replacement)

Color: Black
Density: 1.35±0.05 kg/l
Non-sag properties: Good
Tack-free time: 20~60 min
Rate of cure: ≥3 mm/24hr
Shore A hardness: 60±5
Shear strength (without primer): ≥1.5 N/mm2
Tensile strength: ≥4 N/mm2
Elongation at break: ≥400%
Tear strength: ≥10 N/mm

Surtek 3621: High grade ( auto body joint sealing)

 Color: Black, white, grey
 Density: 1.30 ± 0.05 kg/l
 Tack-free time: 55 min.
 Curing speed: 3 mm/24 hrs
 Shore A hardness: 45
 Tensile strength: 2 N/mm2
 Shear strength: 1 N/mm2
 Elongation at break: ≥400%
 Tear propagation resistance: ≥10 N/ mm

Car & bus windshield and body application

Product Packing

                310ml/cartridge or 600ml/sausage

                              78 - 133 cartons for one pallet

                        78 - 133 cartons for one pallet

                10 pallets for one 20' GP container

Product Type
Storage&Shelf Life

When stored at the recommended conditions in original, unopened containers, this product has a shelf life of 6-9 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.


Q1. Can I have a sample order for polyurethane sealant?

A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.

Q2. What about the lead time?

A:Sample needs 1-3 days, mass production time needs 1-2 weeks.

Q3. Do you have any MOQ limit for polyurethane sealant order?

A: Low MOQ, 1 pc for sample if checking is available

Q4. How do you ship the goods and how long does it take to arrive?

A: We usually ship samples by UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping are optional.

Q5. How to proceed an order for polyurethane sealant?

A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly the customer confirms the sample and places deposit for formal order.
Fourthly We arrange the production.

Q6. Is it OK to print my logo on polyurethane sealant product?

A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q7: Do you offer guarantee for the products?

A: Yes, for cartridge packing is 9 months and sausage packing is 6 months.

Q8: How to deal with the faulty?

A: Firstly, Our products are produced in strict quality control system and the defective rate will be less
than 0.1%.
Secondly, during the guarantee period, we will send new pu sealant with new order for small quantity. For
defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.

Q9: How to contact us?

By E-mail: xrf(at)co-mens.com
By WhatsApp/Phone: 0086-15001271163
By SKYPE: xu.ruofei1
By Wechat: Bensonxu1990

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China (Mainland) | Manufacturer, Trading Company
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