High tack, high green strength assembly sealant

  1. Sikaflex 545 adhere well to a wide variety of substrates and is suitable for bonding applications where high initial grab is required.
  2. Suitable substrate materials include timber, glass, metals, metal primers and paint coatings (2-part systems), ceramic materials and plastics.
Available pack size 300ml, 600ml, 23Litre
Standards ISO, EC1 Certified, Meets highest EHS standards,RoHS,REACH
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Chemical Composition Silane Terminated Polymer
Curing Mechanism Moisture
Color White
Recommended substrates Metals, Plastics, Composites, Ceramic
Max gap fill 6mm
Tack Free Time N/A
Elongation at Break 400 % approx.
Hardness 45 Shore A
Tensile Strength 2.5 MPa
Service Temperature -50 to +90 °C

Features and Benefits

It exhibits high initial grab
Very low emission
Bonds well to a wide variety of substrates without the need for special pre-treatments
Excellent workability
Free of isocyanate, solvent and phthalate


  • The primary target market is an application where high green strength is required. Product develops very quick grab on large mass components.