Products

Extreme High Temperature Silicone

ElastaPro extreme high temperature silicone operates continuously from -85°F to +500°F (-65°C to +260°C) and withstands short-term intermittent peak temperatures up to +600°F (+315°C).

Every batch is Made in USA under ElastaPro’s ISO 9001:2015 / AS9100D quality system and shipped with a complete Certificate of Analysis (COA).

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Need High Temp Silicone Sheeting or Slit Rolls?

We supply continuous rolls, pre-cut sheets, and uncured compounds with low minimums and fast lead times.

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Extreme High Temperature Silicone Sheets (55 and 60 Durometer)

  • ESS55HT – 55 Durometer
  • ESS60HT – 60 Durometer

Standard Sheet Sizes & Roll Dimensions

Solid silicone sheet from ElastaPro is available in these sizes and roll dimensions.

Widths

  • Standard: 36″ (914 mm) and 48″ (1219 mm)
  • Custom: Up to 67″ (1701.8 mm) — among the widest available in the industry

Linear Lengths

  • Continuous rolls up to 300+ yards depending on thickness

Thickness Range

  • 0.005″ to 0.675″ (0.13 mm to 17.145 mm)

Cut Sheet Sizes

  • 12″ × 12″
  • 24″ × 24″
  • 36″ × 36″
  • 48″ × 48″
  • Custom dimensions available

Extreme High Temperature Silicone FAQs

What temperature can high temp silicone withstand?

ElastaPro extreme high temperature silicone operates continuously from -85°F to +500°F (-65°C to +260°C) and withstands short-term intermittent peak temperatures up to +600°F (+315°C).

What is the difference between standard silicone and high temperature silicone?

Standard silicone begins to degrade, harden, and crack when continuously exposed to temperatures above 400°F (200°C). High temperature silicone uses heat stabilizer technology to preserve elasticity, tensile strength, and compression set resistance up to 600°F.

Can high temp silicone sheeting be die-cut?

Yes. ElastaPro solid high temp silicone sheeting features excellent tear strength and dimensional stability, making it easily die-cut, waterjet cut, or slit into narrow tape rolls for custom gasket fabrication.

What are some high temperature silicone gasket applications?

Die-cutters, gasket fabricators, and OEM engineers utilize ElastaPro’s HT silicone sheeting across demanding manufacturing sectors:

  • Aerospace & Defense: Thermal insulation wraps, engine bay fire barrier seals, ducting gaskets, and high-temp wire jackets.
  • Industrial Ovens & Processing: Commercial oven door gaskets, vacuum furnace seals, heat sealing strips, and curing chamber curtains.
  • Automotive & Transportation: Turbocharger crossover seals, exhaust gas recirculation (EGR) gaskets, and heat shield barriers.
  • Electronics & Power Generation: High-temperature transformer insulation pads and power supply thermal interface gaskets.