Thread Sealant for Aircraft Fasteners

Seal with confidence by shopping at GracoRoberts for dependable thread sealants. When it comes to threaded assemblies, leaks aren’t just a nuisance, they’re a risk to performance and safety. At GracoRoberts, we offer a full selection of thread sealants designed to keep systems leak-free under pressure, vibration and extreme conditions. Our thread sealants are easy to apply and work overtime to help prevent loosening from vibration or chemical exposure. With thread sealants from GracoRoberts, you can take to the skies with confidence knowing that your assemblies will hold tight.

Thread sealants work by filling the gaps between metal threads to create a tight, secure seal that resists fluid and gas leakage. Whether you're sealing hydraulic fittings, fuel lines or pipe connections, these adhesives cure in place and protect against loosening caused by thermal cycling and vibration. The easy to use sealants typically go on the fasteners before they’re installed, curing in place and forming a tight seal.

For fine threads that need a medium-strength, slow-curing sealant, try the LOCTITE® 569 Acrylic Thread Sealant — a go-to for hydraulic and pneumatic systems. Looking for a sealant designed for passive metals and high-temperature resistance? The LOCTITE® 580 Acrylic Thread Sealant 50 ml Tube is the right choice and offers excellent performance in demanding environments. With so many options to choose from, you’ll find the right thread sealant for any situation at GracoRoberts.

From aircraft maintenance to heavy equipment repair, technicians rely on quality thread sealants to get the job done right the first time. GracoRoberts carries only trusted brands known for reliability, so you can feel confident in every seal, no matter the application or environment.