Fuel Tank Sealants / PPG Aerospace
Aircraft integral fuel tank sealant supplied in 100 ml Semkit format for fuel-resistant sealing requirements.
Documents
Request the relevant product documents through ADG so technical, safety and traceability requirements can be confirmed.
Product information
PPG PR1776MB-2 is a rapid-curing, two-part polythioether sealant developed for sealing aircraft fuel tanks and fuselage joints. It is designed for fuel-exposed areas where fast curing and durable, flexible sealing are required.
Full product record
PPG PR1776MB-2 is a rapid-curing, two-part polythioether sealant developed for sealing aircraft fuel tanks and fuselage joints. It is designed for fuel-exposed areas where fast curing and durable, flexible sealing are required.
This sealant is supplied as a two-part polythioether system in a Semkit format, allowing fast, accurate mixing and controlled application using standard extrusion equipment. It operates across a wide temperature range from -62°C to 160°C, with intermittent exposure up to 216°C, maintaining flexibility and sealing performance under demanding conditions. Once cured, it forms a durable, elastomeric seal with strong adhesion to common aerospace substrates, including metals and composites. It is resistant to prolonged exposure to aviation fuels and moisture, making it suitable for sealing fuel tanks, fuselage joints, and access areas. Its rapid curing characteristics support efficient maintenance, helping reduce downtime during scheduled work and time-critical repairs.
Specifications and approvals should be confirmed against the current TDS, AMM or OEM documentation before use.