KASTAR 116 PU Sealant for Auto body repairing

Fast dry, Excellent adhesion to metal, Car body repair, UV-Resistance

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KASTAR 116 PU Sealant for Auto body repairing is a one-component sealant, which is based on Modified silane polyurethane resin as the main component. Good flexible and bonding performance with cement, tile, stone, and metal substrates, etc.


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Technology datasheet

Testing Items Performance
AppearanceBlack homogeneous paste
Density (g/cm³)1.50
Sagging properties (mm)0
Shore A-hardness (A°)45
Tack free time (min)35
Tensile strength (Mpa)2.8
Elongation at break (%)420
Tensile-share strength (Mpa)≥3.5
Curing speed (mm/d)2.8
Non-volatile contents (%)99
Tear strength10
Extrudability (ml/min)320
Operating Temperature-40 to 90 degrees C
Application temperature  (ºC) -5~+35


  • Environmental friendly, solvent-free, non-toxic, low VOC.
  • Good weather resistance, non-yellowing.
  • Bonds well with many substrates.


Suitable for sealing the joint of car body panels, weld joints, roof, machine, air cooler, and so on.

Directions for use

  • Remove dust, oil, and water from the surface of substrates.
  • Application environment temperature 5~35℃, humidity 50~70%RH. When the temperature is below 5℃, recommended place products in an environment of 30~40℃ for 1H (No more than 3H).
  • Part of the available node modification can use a scraper or rigid foam, and detailing modification can use available soap and water levels.
  • Activator and primer are not required.

TRANSPORT AND STORAGE Transport and storage

  • Transport: Keep away the sealed product from moisture, the sun, and high temperature and avoid collisions.
  • Storage: Keep sealed in a cool, dry place.Temperature: 5~25℃. Humidity: ≤50%RH.
  • Shelf life: Cartridge and Sausage 9 months, Drum 6 months.


  • Keep away from children.
  • Avoid contact with skin and eyes. For skin contact, remove the sealant with a cloth, and wash the skin thoroughly with soap and water.
  • For eye contact, hold eyelids apart and flush thoroughly with water, and contact a physician.


Cartridge 310ML
Sausage 400ML
Sausage 600ML
Drum  240KGS