Merbenit E20 – Lightweight SMP Sealant

Merbenit E20 is a permanent, elastic, lightweight sealant for industrial applications such as sealing seams and joints.

Merbenit E20 – Lightweight SMP Sealant

Merbenit E20 is a lightweight sealant based on SMP (Silane Modified Polymer) for construction and transportation industries. Merbenit E20 has a density of 0.70 g/cm³, making it 50% lighter than other sealants.

The adhesive has sound insulation properties that absorb vibrations and low thermal conductivity, making it an excellent thermal insulator.


  • Very flexible and resilient, the adhesive can be used as a gasket compression.
  • The adhesive can be used to absorb vibrating elements, isolating voids and noise, heat and cold insulation in vehicle constructions.
  • Car body sealings and weakly stressed or large area bonding in car interiors.


  • Very low density
  • Low thermal conductivity
  • Noise insulating and vibration damping
  • Compressible
  • Simple processing
  • Tolerance compensating
  • Permanently elastic and stress compensating
  • Free of solvents, isocyanates and silicones

For Merbenit E20 pack sizes, please see Additional Information. 

Chemical resistance

  • Good against water, aliphatic solvents, oils, grease, diluted inorganic acids and alkalis
  • Moderate against esters, ketone and aromatics
  • Not resistant against concentrated acids and chlorinated hydrocarbons
  • Waterproof and resistant to ageing

This product is part of the Merbenit range

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Filling of gaps and trailing edges
Bonding of sensors and current conductors
Repair, fixing of inserts and added elementsof inserts and added elements
Casing repair and bonding
Tooling with high temperature resistance
Union of added elements: Vortex, Serrations, etc.
Bonding of Nacelle
Control Shaft & Components
Protection of Screws & Components for Export
Sealing of Assembled Parts