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Quick Details

  • CAS No.: 9009-54-5
  • Other Names: pu sealant
  • MF: C3H8N2O
  • EINECS No.: 210-898-8
  • Place of Origin: Beijing, China (Mainland)
  • Classification: Other Adhesives
  • Main Raw Material: Polyurethane
  • Usage: Construction
  • Brand Name: COMENS
  • Model Number: Surtek 3351
  • Type: plywood joint sealing, Sealant
  • Material: Elastomer Materials
  • Mildew Proof: Not Mildew Proof
  • Sealant Curing Condition: Room Temperate
  • Sealant Color: Black, White, Grey
  • State: Nonfluid
  • Export Markets: Europe America Middle East Asia
  • Keywords: plywood joint sealing
  • Certificate: ISO, MSDS
  • Packing: 20 Pcs

Packaging & Delivery

Packaging Details 310ml Cartridge
600ml Sausage
200L Drum
Delivery Time 7 Working Days


PU (polyurethane) Adhesive Sealant for Constructoin Joint Sealing 


It is a low modulus, one component moisture-curing polyurethane adhesive sealant with permanent elasticity. It is manufactured strictly under the system of ISO9001 and ISO14001.

One component, ready for immediate use, no mixing required
Excellent adhesion
High durability
High abrasion resistance and tear strength
Low modulus
Good weathering and water resistance
Fast cure rate
Certified for use in contact with potable water
Can be painted over with many water-, solvent- and rubber-based paints (preliminary test recommended)

As an elastic adhesive for:
Assembling metal framed buildings
Cover plates and covings
Light-weight construction materials
Acoustic ceiling tiles
Wood, metal or plastic window and Door frames

Clean, sound, dry and free of oil, grease and surface contaminants such as form release agents, curing membranes and hydrophobic water repellents. Thoroughly remove all loose particles and dust.
Primers may be required to achieve optimal adhesion depending on the nature of substrates.

Minimum application temperature 5° C. For easier use store cartridges at temperatures between 10~20° C. Break inner seal at extrusion end of cartridge.
Affix nozzle to cartridge, cut tip to suit joint size. Install into a caulking gun.
Apply in spots or beads on prepared surface, tapping or pressing the part to be adhered against the substrate.
The thickness of the bead depends on the surface texture (1mm~5mm).
For sausages, a barrel gun is required, clip the end of the sausage and place in barrel gun.
Using the trigger extrude the sealant, to stop depress using the catch plaste.
Apply sealant in a continuous bead using enough pressure to properly fill the joint. When masking sides of joints for neatness, remove tape before the sealant cures, Always allow sufficient surface exposed to moisture.

310ml cartridge, 20 PCS/carton
600ml sausage, 20 PCS/carton
Customized  Lable is available 
OEM is welcomed.

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.
8. Basic Techincal Info
AppearanceUniform Paste
ColorBlack, white, grey
Density1.40 ± 0.05 kg/l
Tack-free time45 min. approx.
Rate of cure2.6 mm/24 hrs
Shore A hardness40 approx.
Tensile strength≥2.5 N/mm2
Elongation at break≥550%
Tear strength≥6 N/mm
Glass transition temperature-45°C, approx.
Service temperature (continuous)
Short – term (up to 48 hrs)
-40°C to +90°C
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China (Mainland) | Manufacturer, Trading Company
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