Resins: casting, assembly and protection solutions

What is a resin?

The technical resins are liquid or semi-liquid polymers designed to cure by chemical reaction, generally by adding a hardener (two-component system). 
They are used to assembly, protection, encapsulation or the filling of components in environments subject to mechanical, thermal or chemical stress. 

Whether it's epoxy resin two-componentof silicone resin or polyurethane resin two-componenteach with specific characteristics to meet the needs of industrial sectors such as : 

  • Electronics
  • The mechanics
  • Transport (aeronautics, rail, automotive)
  • Energy
  • Industrial automation
  • Electrical engineering 

Advantages of resins

Using a resin that is suited to the environment in which it is to be applied means you can achieve reliable assembliesand durable protection and a high level of performance : 

  • Mechanical protection The resins absorb shocks, resist vibrations and strengthen assemblies. 
  • Waterproofing and insulation A barrier against moisture, gases, dust and chemicals. 
  • Electrical and thermal insulation Protection against short-circuits, overheating or voltage peaks. 
  • Adhesion to a wide variety of substrates metal, plastic, composite, glass, PCB, wood... 
  • Sustainability Excellent durability, even in aggressive environments. 
  • Process adaptability Manual, robotic, casting or injection application. 

Electronic protection 

Resins are used for encapsulation, potting or filling of electronic boards, transformers, sensors or coils. 
They provide : 

  • A protection against external agents (water, dust, solvents). 
  • Thermal resistance adapted to intensive operating cycles. 

Structural assembly 

Some resins are formulated to gluing structural partsIt can also be used to replace traditional fasteners (screws, rivets, welds). 
They can be found in : 

  • Automotive (panel fastening, bodywork components). 
  • Rail (assembly of composite structures). 
  • Construction (chemical anchoring, crack repair). 

Thermal and dielectric insulation 

In environments with high energy density or close to sources of heat, resins guarantee a long service life. physical and functional separation between conductive elements : 

  • Power modules 
  • High-voltage circuit breakers 
  • Industrial connectors 

Casting, prototyping and moulding 

Resins are also used for moulding of technical or decorative partsThey are ideal for applications such as rapid prototyping and the creation of complex-shaped components, thanks to their high fluidity before polymerisation. 

Epoxy resin two-component 

La two-component epoxy resin is the most versatile. It offers : 

  • A excellent mechanical strength (tension, compression, shear). 
  • A high chemical resistance against solvents, oils and corrosive agents. 
  • A dimensional stability long term. 

It is used in structural assembly, electrical insulation and systems subject to high stress. 

Two-component polyurethane resin 

More flexible than epoxy two-component polyurethane resin is ideal for : 

  • Applications requiring flexibility or elasticity. 
  • La abrasion resistanceThe product is resistant to impact, shock and repeated deformation. 
  • The outdoor applicationsThanks to good UV resistance. 

It is ideally suited to vibrating environments or environments with dynamic thermal cycles. 

Silicone resin 

La silicone resin is prized for : 

  • Sa extreme temperature resistance (from -60°C to +250°C or more). 
  • Sa exceptional insulating propertieseven in wet conditions. 
  • Sa compatibility with medical or food environments. 

It is used for flexible moulding, protection of sensitive components or applications requiring a long service life without excessive hardening. 

By choosing ADDEV Materialsyou can access a expert technical offer and personalised support: 

  • A complete portfolio of epoxy, polyurethane and silicone resins. 
  • Products available in cartridges, kits, bags or drumsaccording to your needs. 
  • Certified solutions (RoHS, REACH, UL, EN45545, etc.) to guarantee the conformity of your assemblies. 
  • Tailor-made formulationsdepending on your curing, viscosity, thermal or dielectric requirements. 
  • Dedicated technical support Selecting the right system, adhesion testing, optimising your production line. 

Our mission: to help you improve the reliability of your components, à reduce the risk of breakdownand speed up your production rates thanks to appropriate technical solutions. 

Do you have a specific project or a recurring need for technical resin? 
Our engineers are on hand to analyse your constraints and make recommendations. the best-performing solution according to your industrial objectives. 

📞 Contact our ADDEV Materials team as of now for a free diagnosis and a personalised recommendation. 

Our strategic resin suppliers

FAQ - Resin

It is a liquid or semi-liquid polymer which, when cured, forms a protective barrier or structural link. It is used for encapsulation, bonding, insulation or filling in demanding environments. 

La epoxy resin is more rigid, with excellent mechanical and chemical resistance. The polyurethane resin is more flexible, more resistant to abrasion and better adapted to deformation and vibration. 

Yes, the silicone resin is used to encapsulate sensitive components. It is resistant to humidity and thermal variations and remains flexible over time, avoiding stress on components. 

Certain formulations (in particular polyurethane and silicone) are perfectly resistant to UV, rain, thermal shock and corrosionand are therefore suitable for outdoor. 

Yes. The majority of our resins are compatible with dosing, mixing and injection equipment for use on production lines or in industrial maintenance.