Sealants
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Premium Aircraft Sealants for Commercial, Regional & Cargo Fleets
Aircraft sealants, also known as aerospace sealants, are high-performance adhesive materials used to seal gaps, joints, and seams in aircraft structures. Widely used across the aerospace industry, these sealants help maintain structural integrity, prevent fuel, air, and water leaks, and protect against corrosion.
Designed for extreme aviation conditions, aircraft and aerospace sealants withstand temperature fluctuations, pressure changes, and vibration. They are commonly applied to fuselage panels, windows, and fuel tanks. Key types include polysulfide, silicone, and polyurethane sealants, each tailored for specific aerospace sealing applications.
Key Types and Applications
Polysulfide Sealants: Frequently used for fuel tank sealing due to their resistance to jet fuel and aviation gasoline (e.g., 3M™ AC-350, AC-735).
Silicone Sealants: Ideal for high-temperature applications, such as engine sealing and environmental sealing (e.g., Hylomar Hylosil 607).
Fuselage/Cabin Sealants: Protect against corrosion between dissimilar metals and seal against moisture.
Conductive Sealants: Used to maintain electrical continuity, often for EMI/RFI shielding.
| What You Get | Why It Matters |
|---|---|
| OEM-Approved Aircraft Sealants | Certified, aircraft-proven sealants for reliable performance. |
| Fuel Tank & Firewall Protection Systems | Ensures safety and compliance with regulatory standards. |
| Full Traceability & Compliance | Simplifies audits and regulatory inspections. |
| Global Distribution & Expert Support | Fast response for AOG situations and critical repairs. |
Frequently Asked Questions
What types of aircraft sealants does Aerospheres supply?
Aerospheres supplies a broad selection of aerospace sealants including polysulfide fuel tank sealants, high-temperature silicone sealants, corrosion-inhibiting fuselage sealants, conductive EMI/RFI shielding compounds, and rapid-cure formulas for AOG maintenance.
Which sealants are best for aircraft fuel tanks?
Polysulfide sealants (such as 3M™ AC-350 and AC-735) are widely specified for fuel tank sealing because they offer superior resistance to jet fuel, aviation gas, thermal shock, and constant pressure changes.
Are all sealants supplied with full certification and shelf-life tracking?
Yes, all aerospace sealants supplied by Aerospheres come with full batch traceability, active shelf-life tracking, and official manufacturer Certificates of Conformance (CoC) or Analysis (CoA) to ensure audit readiness.
Can Aerospheres fulfill urgent AOG orders for time-sensitive sealants?
Yes, we maintain strategically located warehouse inventory across the UK and US with 24/7 AOG dispatch capabilities to deliver critical sealants rapidly and minimize aircraft downtime.