Jonal Laboratories
High Temperature Silicone Rubber Seals & O-Rings for Aerospace
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High Temperature Silicone Elastomers
Aerodynamic / Aerospace Seals
Firewall Seals
Aircraft Door & Hatch Seals
Jet Engine Seals
Fabric Reinforced Diaphragms / Non-Reinforced
Complex Elastomer-to-Metal Bonding
Custom Molded O-rings / O-ring Seals
EMI RFI Shielding
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Firewall Seals

Firewall seals made at Jonal typically are constructed from high temperature resistant silicone rubber, which can also be reinforFirewall Sealsced with flame resistant fabrics such as fiberglass, NOMEX and ceramic refractory cloth.

Firewall seals are used in jet engine applications as barriers to prevent the spread of flame in the event of a failure. These seals are typically designed to withstand direct flame at 2000 degrees F for 15 minutes per FAR requirements.