How are silicones used in Automotive applications?
As automotive electronic applications continue to grow in number and complexity the demands made upon them for increased performance and reliability present many design challenges. By nature, the environmental conditions under which these units must work are very harsh. Temperatures under the bonnet are increasing and geographical locations can also produce extremes in the other direction - these extreme thermal cycles induce stress and the possibility of component failure.
Another source of mechanical stress is a direct result of vibration derived from the engine and road conditions. Chemical and oil attack are also common in and around the engine compartment, with water and humidity a constant threat. All these factors make component protection a high priority for any electronic design engineer working within the automotive industry.
The sealing of the powertrain, water and fuel systems require strong, flexible, temperature and fuel resistant sealants. In many cases, traditional pre-cut gaskets have been replaced using FIPG (Formed in Place Gaskets) which offer overall cost reductions during the manufacturing process.
For further information download our guides to Silicones in Automotive Applications, Thermally Conductive Silicones in Automotive Application & Diesel Resistant Silicone Sealant for Automotive Applications.
Silicones for Electric Vehicles
Silicone chemistry is widely used within current automotive applications due to its inherent physical properties including, a wide operating temperature range, electrical insulation, high dielectric strength, low coefficient of thermal expansion and resistance to moisture and chemicals.
Advances in Electric & Hybrid Vehicle design continue to reduce component size and increase power output, resulting in an ever-increasing demand for greater protection and better heat dissipation to maintain performance and life span. New filler technologies combined with formulating techniques enable CHT to increase thermal conductivity across a range of silicone materials including, adhesives, gap fillers, encapsulants, greases and gels.
For more information about our thermal transfer materials, download our CHT SILCOTHERM brochure.
- More efficient heat dissipation
- Increases in thermal conductivity
- Effective bonding and sealing
- Electrical insulation
- Protection from moisture and chemicals
- Protection from thermal stress, vibration and mechanical shock
Within the design of electric vehicles, silicones are providing engineering and manufacturing solutions for use in charging units, inverters, electric motors, battery packs, wiring, connectors, sensors, displays and control units.
Download our Electric Vehicle brochure for more information.
Finding the right silicone for your application is not limited to CHT’s product portfolio. Our technical team will partner with you to either modify specifications in a current product or custom formulate a new one to meet your exact requirements
For technical assistance or sample requests please visit our contact page.
|ACC11||Acrylic conformal coating||Meets requirements of MIL-I-46058C and IPC-CC-830|
|ACC15||Silicone Conformal Coating||Room temperature cure or mild heat acceleration at 60°C|
|ACC17||Silicone conformal coating||Fast room temperature cure|
|ACC31||Thinners for ACC 11 acrylic conformal coating||Unique solvent blend with flow additives|
|ACC34||Low viscosity fluid for thinning 1 part RTV's||Compatible with virtually all silicones|
|AS1402||1 Part heat cured silicone adhesive sealant paste||Fast cure with heat|
|AS1420||SILCOTHERM 1 Part flowable heat cured silicone adhesive sealant||Fast cure with heat|
|AS1421||SILCOTHERM 1 Part flowable heat cured 2.1 W/mK silicone adhesive||UL94V0 approved file Number E334038|
|AS1500||1 Part RTV adhesive sealant paste high temperature||Fast room temp cure|
|AS1502||1 Part RTV silicone adhesive sealant paste food grade||Fast room temp cure|
|AS1504||1 Part RTV silicone adhesive sealant paste high temperature||Flexible from -50 to +300ºC|
|AS1524||1 Part RTV silicone adhesive sealant self levelling high strength||Fast room temp cure|
|AS1525||1 Part RTV silicone adhesive sealant flowable||Fast room temp cure|
|AS1603||1 Part RTV silicone adhesive sealant paste||Thixotropic Paste|
|AS1604||1 Part RTV silicone adhesive sealant paste||Resistant to fuels|
|AS1606||1 Part RTV silicone adhesive sealant paste||Good primerless adhesion|
|AS1620||1 Part RTV silicone adhesive sealant self levelling||Excellent flow and self-levelling properties|
|AS1621||1 Part RTV silicone adhesive sealant self levelling||Good adhesion to most substrates|
|AS1622||1 Part RTV silicone adhesive sealant self levelling||Good adhesion to most substrates|
|AS1623||1 Part RTV silicone adhesive sealant self levelling high temperature||High temperature resistance to 260°C|
|AS1700||1 Part RTV silicone adhesive sealant paste non corrosive||Non-corrosive|
|AS1701||1 Part RTV silicone adhesive sealant paste non corrosive||Fast skinning|
|AS1723||1 Part RTV silicone adhesive sealant flowable non corrosive||Self levelling|
|AS1740||1 Part RTV silicone adhesive sealant self levelling non corrosive Mil Spec||Meets the requirements of MIL A-46146B Group 1 Type 11|
|AS1745G||1 Part RTV silicone adhesive sealant paste non corrosive Mil spec high temp||Meets the requirements of MIL A-46146B Group 111 Type 1|
|AS1745T||1 Part RTV silicone adhesive sealant paste non corrosive Mil Spec||Meets the requirements of MIL A-46146B Group 11 Type 1|
|AS1800||1 Part RTV silicone adhesive sealant paste non corrosive||Non-corrosive|
|AS1802||SILCOTHERM 1 Part RTV silicone adhesive sealant paste non corrosive||Excellent thermal conductivity|
|AS1802BLACK||SILCOTHERM 1 Part RTV silicone adhesive sealant paste non corrosive||UL94V-0 approved file no. E334038|
|AS1803||SILCOTHERM 1 Part RTV silicone adhesive sealant paste non corrosive||Good thermal conductivity|
|AS1821||1 Part RTV silicone adhesive sealant self levelling non corrosive||Fast room temp cure|
|AS2500||2 Part RTV silicone adhesive sealant paste fast cure||Very fast room temperature Cure|
|AS2700||2 Part RTV silicone adhesive sealant paste non corrosive fast cure||10 : 1 volumeteric ratio for machine or cartridge dispensing|
|CA28||Tin catalyst (for use with ACC Silicones 2 Part encapsulants)||For use with Silcoset 101, 105, SE2005 and SE2018|
|EGel3000||2-part silicone gel low viscosity||1:1 Mix ratio|
|EGel3002||2 Part silicone gel fast cure||High tack and mechanical adheion to many substrates|
|EGel3003||2 Part silicone gel low viscosity soft||1:1 Mix Ratio|
|Primer No 3||Silicone primer for addition cure||For use with addition cure silicones|
|Primer No6||Silicone primer||Suitable for use with ACC RTV Sealants|
|Primer OP2N-1||Silicone resin based primer||Suitable for use with ACC RTV Sealants|
|TufGel 330||Silicone gel tough high purity||Low viscosity|
|TufGel 331||Silicone Gel||Flame retardant|
|QLE1102||2 Part silicone encapsulant optically clear||Optically clear|
|QSil12||20:1 Condensation cure silicone encapsulant clear||Transparent|
|QSil216||10:1 Addition cure silicone encapsulant optically clear||Non yellowing under UV light|
|QSil229||1:1 Addition cure silicone encapsulant optically clear||Non yellowing under UV light|
|QSil553||SILCOTHERM 2 Part Addition cure silicone encapsulant||Thermally conductive|
|QSil573||SILCOTHERM 2 Part Addition cure silicone encapsulant||Thermally Conductive|
|SE2003||SILCOTHERM 2 Part Addition cure silicone encapsulant||Room temperature cure|
|SE2005||2 Part Condensation cure silicone encapsulant||Low viscosity|
|SE2010||SILCOTHERM 2 Part silicone gap filler||Thermally conductive|
|SE2011||2-Part Self bonding potting compound||Adhesive at room temperature|
|SE3000||SILCOTHERM 2 Part Addition cure low viscosity||Thermally conductive|
|SG500||SILCOTHERM thermally conductive silicone grease||Thermally conductive|
|SGM494||Silicone Grease||Work stable after 24 hours at 200ºC|
|SGM496 Pink||Silicone Grease HV Insulating||Excellent work stability|
|Silcoset 101||2 Part condensation cure silicone encapsulant high temperature||High temperature resistance|
|Silcoset 105||2-part condensation cure silicone encapsulant||Flexible from - 60 to +220°C|
|Silcoset 151||1 Part RTV silicone adhesive sealant self levelling high temp food grade||Flexible from - 60 to +300°C|
|Silcoset 152||1 Part RTV silicone adhesive sealant paste high temperature||Flexible from - 60 to +300°C|
|Silcoset 153||1 Part RTV silicone adhesive sealant paste||UL certified file number E334038|
|Silcoset 158||1 Part RTV silicone adhesive sealant paste high temperature||High temperature resistance|
|Primer Silcoset||Silicone primer resin based||For use with Silcoset 1 & 2 Part RTV's|
|ICM SVE-2067||Emulsion of 100000 cSt PDMS oil||EC 648/2004 compliant surfactants|
|EM 18||35% Silicone Emulsion||Excellent wetting characteristics|
|SilSo SE2014||Silso 2 Part Addition cure silicone encapsulant||Resistant to high pressure|
|QSil214||Transparent Silicone Elastomer||Medium viscosity|