Adhesives

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Your aircraft parts should be safely sealed and secure before every departure. Ensuring everything is sealed and secure is essential for a smooth flight and at SkyGeek, we make it easy with a selection of premium aviation-approved silicone sealants, structural adhesives and high-performance glues.


Why Silicone Sealants?

Our silicone sealants are aviation-approved for your aircraft's needs. Nobody wants to deal with a sticky, messy nightmare when applying a sealant, but silicone sealants have a mess-free consistency, allowing for easy application without any hassle. These products adhere to many surfaces and are pretty much the perfect airplane glue. The high-performance sealants are the ideal multi-purpose staple in any toolbox.

Other Adhesives and Sealants

Worried about extreme weather wreaking havoc on your sealant? Try Dow Corning 732, which will protect your aircraft and remain flexible and strong even when exposed to extreme temperatures. Your aircraft deserves protection that won't crack under pressure.

Looking for a multi-tasking powerhouse that can fix just about anything? Our selection of J-B Weld epoxy products is a great place to start. J-B Weld is incredibly versatile, useful as adhesive, sealant, filler, insulator and more; a handy product for any aviator and technician. We carry J-B Weld epoxy products specialized for water, cold, wood and general uses. All of our weld epoxy products are durable and require little to no maintenance, setting in under 30 minutes and curing in mere hours after application.

Try our 3M™ products, such as the Scotch-Seal™, which protects steel, glass and plastics. The 3M 1300L adhesive is a highly versatile adhesive ideal for any toolkit. Use 3M™ general purpose adhesive cleaner for easy cleanup after adhesive application. Our industrial adhesive and silicone sealant products will keep your aircraft sealed and protected under any conditions.

The Right Protection

When it comes to aviation maintenance, having the right sealants, glues and adhesives is just as crucial as having the right tools. Fortunately, you can find high-quality aerospace adhesives and aircraft glue at SkyGeek to ensure that your aircraft is sealed, protected and ready to handle anything.

If you have any additional questions we encourage you to contact our knowledgeable and friendly customer service experts via the SkyGeek Help Center. For help choosing the right aviation adhesive for your needs, reach out to our team of Geeks, who will be happy to help.

Aerospace Adhesives FAQs

Q: What types of aerospace adhesives are available at SkyGeek?
A: SkyGeek stocks aerospace-grade adhesives including two-part epoxy structural adhesives, cyanoacrylate instant adhesives, polyurethane adhesives, and specialty film adhesives for bonding composite and metal structures. Product selection covers a range of cure speeds, viscosities, and temperature resistance profiles for specific MRO and OEM assembly applications.
Q: What aviation applications require structural adhesive?
A: Structural adhesives are used for bonding composite panels, potting inserts in honeycomb structures, repairing sandwich core structures, and attaching secondary structures where mechanical fasteners are impractical. Adhesive selection must be based on substrate compatibility, load requirements, temperature exposure, and applicable OEM or repair specification.

Read: Aerospace Adhesives Comparison Guide

Q: Do aerospace adhesives need to meet a military or aerospace specification?
A: Yes. Adhesives used in certificated aircraft maintenance must typically conform to a specification such as MIL-A-8623 for epoxy resin adhesives, AMS 3920 for film adhesives, or OEM-specific callouts. Verify the specification requirement listed in the maintenance or repair manual before sourcing.

View MIL-SPEC materials at SkyGeek

Q: What is the difference between epoxy and cyanoacrylate adhesive for aircraft?
A: Epoxy adhesives provide high shear and peel strength with chemical resistance, making them suitable for structural bonding and repair. Cyanoacrylate adhesives cure very quickly and work well for small, non-structural bonds, but lack the strength, flexibility, and chemical resistance required for structural aerospace applications.
Q: How should aerospace adhesives be stored?
A: Most aerospace adhesives have defined shelf lives and storage temperature requirements specified in the product data sheet. Two-part adhesives must be kept sealed to prevent moisture contamination and premature curing. Always check the expiration date before use and discard material that has exceeded its stated shelf life.
Q: How do I select the right adhesive for an aircraft composite repair?
A: Composite repair adhesive selection depends on substrate type, cure temperature capability, required mechanical properties, and the specification called out in the aircraft's structural repair manual. Film adhesives are commonly used for primary composite bonded repairs, while paste epoxies are used for secondary bonding and core potting.