Two-component silicone adhesive: performance and reliability

What is a two-component silicone adhesive?

Two-component silicone adhesive is a technical assembly solution made up of two components which, when mixed, form a flexible, resistant and stable mass. This type of adhesive is particularly used for encapsulation, bonding, electrical insulation and sealing in demanding industrial environments. 

Thanks to polymerisation by addition or condensation, these adhesives offer an excellent controlled curing timea strong adhesion to a variety of substrates (plastics, metal, glass and composites) and a very good resistance to high temperaturesUV and humidity. 

Advantages of two-component silicone adhesives

  • High thermal resistance, up to +250°C 
  • Excellent elasticity and vibration absorption 
  • Durable electrical insulation, even in damp environments 
  • Low shrinkage on curing, ideal for sensitive components 
  • Multi-substrate adhesion without primer for certain substrates 
  • Compatibility with medical, electronic and aeronautical standards (ISO 10993, UL94, etc.) 

Two-component silicone adhesives are also available in the form of pastes, gels or liquid formulationsThey are suitable for all types of application: cartridge, syringe, automated dosing. 

Electronics and electrical engineering 

  • Protection of printed circuit boards against humidity, vibration and electric shock 
  • Potting of sensors, relays and power components 
  • Thermal and electrical insulation in transformers or LED modules 

Automotive and mobility 

  • Bonding and sealing of on-board electronic modules 
  • Encapsulation of engine sensors or control boxes subjected to high temperatures 
  • Flexible seal resistant to fluids and thermal shock in electric motors 

Medical and precision equipment 

  • Assembly of medical devices subject to hygienic and thermal stresses 
  • Transparent or bio-compatible applications (ISO 10993-certified medical silicone adhesive) 
  • Bonding lenses, membranes or flexible end caps to engineering plastics 
  • Support in the technical choice adapted to your industrial constraints 
  • Access to a wide range of premium brands Dow, Wacker, Momentive, Elkem 
  • Customised packaging : cartridges, bags, kits or bulk 
  • Services de cutting, reconditioning, application testing available 
  • Tailor-made project management: R&D, prototyping, series production, quality audits 

Our technical teams will be happy to help you find the right solution for your needs. better formulationdepending on your support, production rate and standards requirements. 

Not sure which two-component silicone adhesive to choose? Do you have an ongoing project requiring high thermal, mechanical or electrical performance ? 

Our experts can help you select the optimum product, test its integration and plan your supplies. 
📩 Fill in the contact form to receive a quote or sample within 24 to 48 hours. 

Our strategic suppliers of two-component silicone adhesives

FAQ - Two-component silicone adhesive

The single-component adhesive cures with air humidity. The two-component version requires prior mixing, offering faster, controlled curing and better mechanical and thermal performance.

Yes, particularly on engineering plastics (polycarbonate, ABS, PBT), which often require no primer, as long as a suitable formulation is used.

Some formulations are ISO 10993 or FDA certified and can be used for the assembly of medical or diagnostic devices.

Depending on the reference, this can take from a few minutes to several hours. Reaction speed can be adjusted via dosage or temperature.

Yes, we offer cartridges, ready-to-use kits or customised reconditioning for your prototyping or limited series requirements.