Assembly adhesive and sealant

  1. Sikaflex®252 is a PU assembly sealant suitable for structural joints that will be subjected to dynamic stresses in bus body, automotive and other applications.
Available pack size 300ml, 600ml, 23Litre
Standards ISO,RoHS,REACH
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Chemical Composition Polyurethane
Curing Mechanism Moisture
Color White/Black
Recommended substrates Metals, Plastics, Composites, Ceramic.
Max gap fill 6mm
Tack Free Time 60min
Elongation at Break 400% approx.
Hardness 50 Shore A
Tensile Strength 3 Mpa
Service Temperature -40°C to 90°C

Features and Benefits

This sealant can withstand high dynamic stresses
Can be painted over in both wet (once It becomes tack free) and dry condition
Provides vibration-damping properties


  • Generally sealants are considered to be low in strength for primarily sealing application.Sikaflex 252 is an assembly sealant that not only seals but bonds with extremely high strength. Has higher hardness than a standard body sealant.