High Temperature Cyanoacrylate Adhesives — Heat-Resist™

Rubber-toughened, thermal shock resistant cyanoacrylate adhesives engineered for extreme environments — delivering up to 5,200 PSI bond strength with continuous service to 145°C across automotive, aerospace, defence, and industrial applications.

Automotive engine hose and fitting assembly for Heat-Resist™ high temperature cyanoacrylate
Automotive Under-Hood Assembly
Withstands continuous engine bay temperatures and thermal cycling on sensors, brackets, trim, and rubber seals.
PCB thermal test chamber interior for Heat-Resist™ high temperature cyanoacrylate electronics bonding
Electronics & PCB Bonding
Reliable adhesion through solder reflow and repeated thermal cycling — suitable for component bonding on PCBs and enclosures.
Satellite and spacecraft components for Heat-Resist™ high temperature cyanoacrylate aerospace defence
Aerospace & Defence
MIL-A-46050C qualified grades for airframe components, avionics housings, and defence equipment subject to extreme temperature swings.
Rubber gasket seal kit components for Heat-Resist™ high temperature cyanoacrylate multi-material bonding
Rubber & Multi-Material Bonding
Rubber-toughened chemistry bonds EPDM, neoprene, and thermoplastic rubber to metal and plastic substrates without primers.
Industrial temperature gauge closeup for Heat-Resist™ thermal shock resistant cyanoacrylate
Thermal Shock Resistant Assemblies
Engineered to pass MIL-A-46050C thermal shock testing — retaining full bond integrity across rapid −55°C to 145°C temperature transitions.
Red industrial valve handwheels for Heat-Resist™ high temperature cyanoacrylate equipment bonding
Industrial Equipment Manufacturing
Available in medium to very-high viscosity grades for gap-filling and surface bonding on pumps, motors, and high-heat process equipment.
  • Heat-Resist™ is a rubber-toughened ethyl cyanoacrylate engineered for high-temperature and thermal shock applications. Unlike standard cyanoacrylates that become brittle above 80–95°C, Heat-Resist™ grades are rated to 135–145°C and maintain bond strength through repeated thermal cycling. The rubber modification also improves impact resistance and peel strength.

  • Heat-Resist™ 311 and 340 are rated from −55°C to 145°C. Heat-Resist™ 320 is rated from −55°C to 135°C. All grades resist thermal shock — rapid cycling between extreme low and high temperatures without bond failure.

  • Heat-Resist™ achieves up to 5,200 PSI on PC and PVC plastics and up to 5,200 PSI on steel — substantially higher than standard CA grades due to the rubber-toughened formulation. These strengths are maintained after thermal cycling.

  • Heat-Resist™ is available in medium viscosity (260–370 cP, grade 320) and very high viscosity (2,000–3,000 cP, grades 311 and 340). The medium-viscosity grade suits standard dispensing on flat or gapped surfaces; the high-viscosity grades are used for gap-filling and vertical-surface bonding.

  • Heat-Resist™ bonds plastics (PC, PVC, ABS), metals (steel, aluminium), rubber, foam, cloth, and wood. Grades 311 and 340 offer the broadest substrate compatibility across all of these materials.

  • Yes. Grade 340 meets ISO 10993-5 biocompatibility and Mil-A-46050C military specification. All grades resist alcohols, petrol, aromatic hydrocarbons, and diluted aqueous acids and bases — suitable for harsh outdoor and chemically exposed environments.

Ready to Specify Heat-Resist™ High Temperature Cyanoacrylate Adhesives?

Tell us your substrate, service temperature, and joint geometry —
our team will recommend the right high-temperature CA grade and pack size for your application.