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Quality Materials & Service to the North West since 1974


Product Code: 84EVE0140

Everflex Premium+ 450 Builders Silicone is a premium quality low modulus non-corrosive neutral cure silicone sealant that adheres to virtually all substrates, both porous and non-porous. Typically used for construction expansion joints and perimeter pointing of all types of door and window frames.


  • Perimeter pointing internally and externally around PVCu /wood and all other window frames.
  • Sealing and as an adhesive onto PVCu, plastic trims, and components.
  • Bedding insulated glass units in accordance with relevant clauses of BS8000 Part 7.
  • Suitable as an expansion joint sealant.
  • Weather sealing and joint sealing to pre-formed panels.
  • Sealing soft metals such as lead, copper, and zinc.
  • General glazing sealing and draughtproofing, including repair work over existing sealant.
  • Glass to glass and glass to aluminium sealing.
  • Parapet and roof weather sealing applications.
  • Advantages

  • Conforms to ISO 11600 class: F 25LM.
  • Excellent adhesion - adheres to most common surfaces including glass, metals, plastics and wood.
  • Low dirt picks up - important in PVCu work.
  • Excellent flexibility - +/- 25%.
  • High resistance to plasticiser migration - may be used over water-based and solvent-based paints.
  • Excellent external weathering properties. Suitable for use on polycarbonate.
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