Aviation-Grade Fuel Tank Sealants from Top Brands

Get precision protection for your aircraft’s fuel system by shopping at GracoRoberts. Our fuel tank sealants are engineered to provide a tight, durable seal that resists fuel, oil and hydraulic fluids. This airtight seal is critical in maintaining the safety and performance of any aircraft. At GracoRoberts, we carry a variety of fuel tank sealants, including trusted products from top manufacturers. Our fuel tank sealants are designed to meet the high demands of aerospace environments, providing you with a reliable, leak-free seal. Whether you're working on new builds or maintaining an existing aircraft, the right aviation sealant ensures long-lasting protection where it matters most.

At GracoRoberts we carry a range of sealants for aircraft designed for integral fuel tanks, access panels and pressurized fuselage sections. For extended workability and resistance in harsh conditions, 3M™ AC-350 B-2 Aerospace Sealant is a reliable choice. Need a fast-curing solution for tight schedules? 3M™ AC-350 B-1/2 Aerospace Sealant delivers the same performance you’d expect from a 3M™ product, but with a shorter cure time. It’s ideal for rapid maintenance operations and for times when you just don’t feel like waiting around for your sealant to cure.

Each aircraft sealant in our selection is built to withstand temperature extremes, vibration and prolonged fuel exposure — all typical hazards of flight. Whether you're applying an airplane sealant in a production setting or using an aviation sealer for field repairs, our products are designed for ease of use and will all deliver dependable performance. Many also meet or exceed MIL-SPEC standards for critical fuel system applications, so you can order and apply with confidence.

At GracoRoberts, we don’t just supply materials, we support your mission. We offer application guidance and product insight to help you select the right aerodynamic sealant for your project. Trust our experience in aerospace materials to help keep your aircraft sealed, safe and flight-ready.