Sikaflex 508 Multi Purpose Low Emission Sealant

£19.99 £16.66
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Sikaflex®-508 Black 600ml

Low Emission Multipurpose STP Sealant

Sikaflex®-508 is a low emission one-compo- nent isocyanate free sealant based on the Sika Silane Terminated Polymer (STP) technology. Sikaflex®-508 meets the most severe environment, health and safety standards and sets a new benchmark in this technology. The product cures on exposure to atmospheric humidity to form a durable elastomer. 

Sikaflex 508 Benefits

  • Very low emission
  • Compatible with foamed polysterene (XPS)
  • Bonds well to a wide variety of substrates without the need for special pre-treatments
  • Easy to process
  • Low odour
  • Isocyanate, phthalate, plasticizer, solvent and PVC free

Sikaflex®-508 is a low modulus multipurpose sealant for internal and external applications. It adheres well to a wide variety of substrates and is especially compatible with foamed polystyrene (XPS).
Seek manufacturer’s advice and perform tests on original substrates before using Sikaflex®-508 on transparent or pigmented materials that are prone to stress cracking.
This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed to ensure adhesion and material compatibility.  

  • Chemical base: Silane Terminated Polymer
  • Colour (CQP001-1): Black
  • Cure mechanism: Moisture-curing
  • Density (uncured): 1.5 kg/l
  • Non-sag properties: Good
  • Application temperature: ambient 5 – 40 °C
  • Skin time (CQP019-1): 50 minutes A
  • Curing speed (CQP049-1): (see diagram)
  • Shrinkage (CQP014-1): 1 %
  • Shore A hardness (CQP023-1 / ISO 7619-1): 35
  • Tensile strength (CQP036-1 / ISO 527): 1.5 MPa
  • Elongation at break (CQP036-1 / ISO 527): 250 %
  • Tear propagation resistance (CQP045-1 / ISO 34): 4 N/mm
  • Service temperature (CQP513-1): - 50 – 80 °C
  • Shelf life * (CQP016-1): Drum 9 months / Unipack 12 months 

(* storage below 25 °C)

More Information
Size 600 ml Foil
  • Free Delivery Over £49

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  • ISO 9001 : 2015 Approved

    Quality Assured


    35 Years Experience.

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