OEM-Approved Aerospace Sealants & Gaskets
Reduce Aircraft Maintenance Time by Up to 55% with Non-Curing ePTFE Sealants
GORE® SKYFLEX® Aerospace Materials are chemically inert, non-curing ePTFE sealant tapes and gaskets trusted by the world's leading aircraft manufacturers. No mixing, no masking, no cure time — just install and fly.
GORE® SKYFLEX® Aerospace Materials represent a paradigm shift in aircraft sealing technology. Traditional sealants require mixing, application, cure time, and careful masking — all of which slow down MRO operations and add labor cost. SKYFLEX materials eliminate every one of those steps. The fully cured ePTFE construction is chemically inert, non-hazardous, and reusable across multiple open-and-close maintenance cycles. One major OEM documented a reduction from 9 installation steps to 3, translating to a 55% reduction in recurring operating costs. Approved by Airbus, Boeing, Bombardier, COMAC, and Embraer, SKYFLEX is the qualified choice for access panels, engine cowlings, fairings, fuselage joints, and military platforms including the F-16, F-35, and V-22.
Why Choose GORE® SKYFLEX®?
No Cure Time — Fly Faster
Conventional polysulfide and silicone sealants require hours or days of cure time before an aircraft can return to service. SKYFLEX materials are fully cured at installation. Open an access panel, reseal with SKYFLEX, and close — no waiting. For high-utilization fleets and tight MRO windows, this directly reduces aircraft on ground (AOG) time.
Reusable Across Maintenance Cycles
SKYFLEX tapes and gaskets can be removed and reinstalled multiple times without degrading their sealing performance. This eliminates the consumable cost of replacing compound sealants at every inspection interval — a significant saving across large fleets with frequent scheduled maintenance.
Five-OEM Approval — No Qualification Risk
SKYFLEX materials hold approved-product-list (APL) status with Airbus, Boeing, Bombardier, COMAC, and Embraer, as well as SAE AMS3255 compliance and T.O. qualifications for the F-16, F-35, and V-22. Purchasing SKYFLEX through RSTECH Electronics in Israel means you receive the same fully qualified material — no re-approval required.
Wide Series Coverage for Any Joint
Ten product series cover everything from large-gap access panels (100/200 Series) to fuel-exposed sealing applications (520/720 Series) to load-bearing permanent interfays (PX1 Series). One supplier, one qualified material family, for virtually every aircraft sealing requirement.
Chemical Inertness & Safety
ePTFE is non-reactive with aviation fuels, hydraulic fluids, oils, and cleaning agents. No off-gassing during installation, no hazardous waste disposal requirements, and no special PPE for applicators. This simplifies hangar safety compliance and reduces the hazardous materials footprint in MRO facilities.
Proven on Military & Next-Gen Platforms
Beyond commercial aviation, SKYFLEX holds Technical Order qualifications for the F-16 and F-35 fighter jets and the V-22 Osprey tiltrotor. It is also being certified for eVTOL programs — demonstrating Gore's commitment to qualifying SKYFLEX on every generation of air vehicle.
Technical Specifications
- Material
- Expanded PTFE (ePTFE)
- Temperature Range
- −65°C to +260°C
- Cure Time
- None — ready at installation
- Reusability
- Multiple open/close cycles
- Chemical Resistance
- Fuels, oils, hydraulic fluids, solvents
- Compliance
- SAE AMS3255
- OEM Approvals
- Airbus, Boeing, Bombardier, COMAC, Embraer
- Military T.O. Qualifications
- F-16, F-35, V-22
- Available Series
- 100, 110, 200, 500, 520, 700, 720, 730, 1600, PX1
Applications
- Access panels, doors, and quick-opening fasteners on commercial and military aircraft
- Engine cowlings and nacelle fairings requiring repeatable sealing
- Fuselage joints, ribs, stringers, and wing D-Noses
- Fuel bladder cavities and fuel-wetted areas (520/720 Series)
- Helicopter tail boom covers and rotor pylon interfaces
- Exterior lighting assemblies and avionics bay gaskets
- Load-bearing permanent interfays on primary structures (PX1 Series)
- eVTOL airframe sealing applications
Industries Served
Frequently Asked Questions
Is SKYFLEX approved for my aircraft type?
GORE® SKYFLEX® holds approved-product-list status with Airbus, Boeing, Bombardier, COMAC, and Embraer for commercial aviation, plus Technical Order qualifications for the F-16, F-35, and V-22 in military service. If your platform is not listed, contact RSTECH Electronics — Gore may have additional qualifications or a qualification path for your aircraft type.
Which SKYFLEX series should I use for fuel-exposed applications?
The 520 Series gasket and 720 Series tape/gasket are specifically engineered for continuous fuel and oil exposure. The 700 Series provides combined environmental sealing plus hydraulic/engine oil resistance. For pure fuel sealing, 520 is the primary recommendation. RSTECH can assist with series selection based on your specific application requirements.
How does SKYFLEX handle the extreme temperature range of aircraft operations?
ePTFE is intrinsically stable across the full −65°C to +260°C range, which covers both high-altitude cold-soak conditions and sustained proximity to jet engine heat zones. Unlike silicone or polysulfide sealants, ePTFE does not become brittle at low temperatures or degrade at high temperatures within this range.
Can RSTECH Electronics supply SKYFLEX with the necessary airworthiness documentation?
Yes. RSTECH Electronics is the authorized Gore representative in Israel and supplies SKYFLEX materials with full material certifications and conformance documentation. We can support your procurement team with the paperwork required for quality-assurance and airworthiness record-keeping.
What is the PX1 Series and when is it used?
The PX1 Series is Gore's load-bearing, corrosion-protective interfay material for permanent aircraft structures. Unlike the tape and gasket series used on removable panels, PX1 is designed for primary structural joints where both corrosion isolation and structural load transfer are required. It is distinct from the maintenance-access products in the SKYFLEX family.
Ready to source GORE® SKYFLEX® in Israel?
Contact RSTECH Electronics — your authorized Gore representative in Israel — for pricing, material certifications, and technical support.