Elastomer Compounds for Bonded Component Applications

Elastomer Materials for Bonded Components

HTEI works with a range of elastomer materials selected based on operating conditions, chemical exposure, temperature requirements, and mechanical performance.

Material selection is evaluated during design to ensure compatibility with substrates, bonding methods, and long-term application performance.

Request a Quote

Submit Drawings

ISO 9001:2015 Certified

Tolerances to ±0.0002

Surface Finishes to 8 RMS

Substrate Bonding: Metals | Plastics | Composites | Glass

Common Elastomer Materials

HTEI works with a range of elastomer compounds selected based on temperature, chemical exposure, sealing requirements, and mechanical performance.

Material selection is evaluated based on application conditions and bonding requirements.

Silicone

Silicone is used in applications requiring stable performance across a wide temperature range, including sealing, medical, and high-temperature environments.

Temp Range: −80°F to 450°F

Excellent: Temperature stability, flexibility, weather resistance

Poor: Tear strength, abrasion resistance

Durometer: 20–80 Shore A

EPDM

EPDM is commonly used for outdoor and environmental sealing applications where resistance to weather, ozone, water, and steam is required.

Temp Range: −50°F to 300°F

Excellent: Weather, ozone, UV, water, steam

Poor: Petroleum oils and fuels

Durometer: 30–90 Shore A

Nitrile (NBR / HNBR)

Nitrile is widely used in fuel and fluid sealing systems where oil and hydrocarbon resistance are critical.

Temp Range: −40°F to 250°F (HNBR up to ~300°F)

Excellent: Oil, fuel, hydraulic fluids

Moderate: Ozone/weather (HNBR improved)

Durometer: 40–90 Shore A

FKM (Viton®)

FKM is used in high-temperature and chemically aggressive environments, including aerospace and automotive sealing applications.

Temp Range: −15°F to 400°F

Excellent: Fuels, chemicals, high temperature

Poor: Low-temperature flexibility

Durometer: 60–90 Shore A

FFKM

FFKM is selected for extreme environments requiring near-universal chemical resistance and high-temperature performance.

Temp Range: 0°F to 600°F

Exceptional: Chemical resistance (broad compatibility)

Excellent: High-temperature stability

Durometer: 70–90 Shore A

Urethane

Urethane is used in high-wear and load-bearing applications where abrasion resistance and durability are critical.

Temp Range: −60°F to 200°F

Excellent: Abrasion, tear strength, load-bearing

Good: Oil resistance

Durometer: 70 Shore A – 75 Shore D

Specialized Elastomer Materials

HTEI also works with additional elastomer compounds selected for specialized sealing, chemical resistance, and application-specific performance requirements.

Neoprene

Neoprene is a general-purpose material used in applications requiring a balance of oil, weather, and chemical resistance.

Temp Range: −40°F to 250°F

Balanced: Oil, weather, ozone resistance

Moderate: Chemical resistance

Durometer: 40–90 Shore A

Butyl

Butyl is used in applications requiring low gas permeability and strong resistance to moisture and chemical exposure.

Temp Range: −60°F to 250°F

Excellent: Gas and moisture resistance

Poor: Petroleum oils

Durometer: 40–80 Shore A

Natural Rubber

Natural rubber is used in dynamic applications where high elasticity, resilience, and mechanical performance are required.

Temp Range: −60°F to 180°F

Excellent: Tensile strength, elasticity

Poor: Oil, ozone, UV

Durometer: 30–90 Shore A

Medical-Grade & Platinum-Cured Silicone

This material is used in regulated and high-purity environments where consistency, cleanliness, and biocompatibility are required.

Temp Range: −80°F to 450°F

Excellent: Biocompatibility, purity, temperature stability

Compliant: FDA, USP Class VI (when specified)

Durometer: 20–80 Shore A

Material Selection Considerations

Selecting the proper elastomer requires evaluating the operating environment, substrate compatibility, and performance requirements of the finished component.