Bondflex 400

A single-part, low modulus, neutral curing silicone sealant, which cures on exposure to atmospheric moisture to form a resilient, highly elastic seal which maintains flexibility over a wide range of temperatures.


  • Conforms to ISO 11600 F&G 25 LM.
  • Quick cure – low dirt pick-up.
  • Permanent flexible seal.
  • Excellent weatherability.
  • Primerless adhesion to many materials.
  • Compatible with water-based and solvent-based coatings: no plasticizer migration.
  • Flexible at low (-50°C) and high (120°C) temperatures.
  • Low shrinkage.

General information


Conforms to ISO 11600 F&G 25 LM

Quick cure – low dirt pick-up

Permanent flexible seal

Excellent weatherability

Primerless adhesion to many materials

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Uniclass 2015

Pr_30_31_76_77 Silicone construction joint sealantsPrimary


H11/777 Weathersealing for structural sealant/ bonded glazing

H31/10 Metal

H31/110 Metal

H31/120 Metal

H31/160 Profiled plastics sheet

L10/75 Sealant joints

L10/810 Sealant joints

L40/250 Bead-fixed single-glazing

L40/310 Bead-fixed single-glazing

L40/330 Bead-fixed single-glazing

L40/350 Bead-fixed single-glazing

L40/372 Bead-fixed insulating glass units

L40/380 Bead-fixed insulating glass units

L40/381 Bead-fixed insulating glass units

L40/495 U-profiled single-glazing

L40/496 U-profiled double-glazing

L40/50 Bead-fixed single-glazing

L40/55 Bead-fixed insulating glass units

L40/57 Bead-fixed insulating glass units

L40/58 Bead-fixed insulating glass units

Specification data - Silicone construction joint sealants

Product Reference

Bondflex 400




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