Epoxy resin: bonding, protection and encapsulation

What is epoxy resin?

La epoxy resin is a thermosetting polymer obtained by the reaction of a epoxy resin and a hardener (usually an amine or anhydride).

It is offered in the form of two-component and hardens at room temperature or by heating.

Used in the following fields electrical, mechanical, electronic, construction, naval and aeronautical industriesThis resin is renowned for its exceptional mechanical propertieshis high adhesionhis chemical resistanceand its long-term stability. 

L'epoxy bi component can be used for : 

  • Le bonding of technical parts (epoxy adhesive resin)
  • L'encapsulation of electronic components
  • La casting in moulds or cases
  • La mechanical, chemical or electrical protection 

Advantages of epoxy resin

Epoxy resin is one of the most versatile and reliable materials on the market for industrial applications, thanks to its many technical properties: 

  • Excellent mechanical resistance compression, shear, traction 
  • Very good chemical resistance : oils, solvents, corrosive agents 
  • High dimensional stability Low polymerisation shrinkage 
  • Thermal resistance up to +180°C according to formulation 
  • Excellent adhesion to a wide range of substrates metal, plastic, composite, glass, wood 
  • High rigidity once hardened 
  • Long service life even in aggressive environments 

These qualities make epoxy resin particularly suitable for structural, electrical, electronic, moulded or encapsulated applications. 

Encapsulation and electronic potting 

  • Protection for printed circuits, sensors, relays and connectors 
  • Barrier against humidity, dust and vibrations 
  • Ideal forautomation, LED lighting, on-board units, etc. 

Industrial structural bonding 

  • Assembly metal/metal, metal/plastic, composite... 
  • Replacing rivets, screws or welds 
  • Extreme mechanical resistance under severe thermal or chemical conditions 
  • Used in theautomotive, aerospace, electric mobility, rail 

Moulding and manufacture of technical parts 

  • Rapid prototyping or small series 
  • High-precision rigid parts complex geometry 
  • Industrial mouldsdies, specific tooling 

Surface coating and protection 

  • Anti-corrosion, impact-resistant and chemical-resistant technical coatings 
  • Protection of mechanical parts, equipment and tanks 
  • Applications in the Construction, maintenance, ATEX zones 

two-component epoxy 

  • Very good mechanical and thermal resistance
  • Wide choice of viscosities and setting times
  • Ideal for bonding, potting, encapsulation or moulding 

thermally conductive epoxy 

  • Promotes heat transfer in electronic systems
  • Encapsulation or bonding of heat sink components
  • Formulated with ceramic or metallic fillers 

epoxy for electrical insulation 

  • Excellent dielectric strength up to 20 kV/mm
  • Specific formulations for potting or coating
  • Application in transformers, converters, sensors 

flame retardant epoxy 

  • Complies with standards UL94 V-0, EN45545, FAR 25
  • Low smoke and toxic gas emissions
  • Ideal for on-board, rail and aeronautical applications 

rigid epoxy for moulding 

  • Excellent dimensional stability
  • Good machinability after hardening
  • Suitable for technical parts, models, functional parts 

At ADDEV Materialswe select epoxy resins comply with the most stringent requirements: 

  • UL94 V-0, EN45545, FAR 25, ISO 10993, REACH / RoHS 
  • Dielectric strength up to 20 kV/mm / thermal resistance up to +180°C 
  • Internal tests substrate compatibility, chemical resistance, ageing, dimensional shrinkage 
  • Supply of TDS, SDS, certificates of conformity 
  • Available formats cartridges, dosing kits, buckets, flexible bags, industrial drums 

ADDEV Materials can help you with your needswith a wide range of services and advanced technical support: 

  • References from leading manufacturers: Henkel, Bostik, MG Chemicals, Elkem, Sika... 
  • Technical formulations for all uses: encapsulation, bonding, moulding 
  • Suitable packaging laboratory, production line, automation 
  • Tailor-made support : trials, adhesion tests, product selection, technical assistance 
  • Compatible solutions with your standards (automotive, rail, electronics, medical) 

Our mission: secure your components, make your processes more reliable and optimise your industrial processes. 

📞 Contact our ADDEV Materials experts to obtain a personalised recommendationsa technical sample or a quick quotation adapted to your needs in epoxy resin. 

Our strategic epoxy resin suppliers

FAQ - Epoxy resin

It's a two-component thermosetting resin which, when cured, forms a rigid material with high mechanical, chemical and electrical resistance. It is used for bonding, encapsulating, moulding or protecting parts. 

La epoxy resin is more rigid, mechanically and chemically resistant. La polyurethane resin is more flexible, quicker to harden and better suited to vibrations or humidity. 

Yes. It is used to encapsulation, the potting or protection of sensitive components against humidity, shock, dust and electric shock. 

Yes. Epoxy resin is perfect for rigid mouldingwith low shrinkage, excellent precision and good mechanical strength. It is also used to make moulds and prototypes. 

Yes, at ADDEV Materials we offer epoxy resin in cartridges, pre-measured kits, buckets, flexible bags or drumsdepending on your needs and equipment.