Fuel Tank Sealants / PPG Aerospace
Aircraft integral fuel tank sealant supplied in 100 ml Semkit format with B-1/2 application characteristics.
Documents
Request the relevant product documents through ADG so technical, safety and traceability requirements can be confirmed.
Product information
PPG PR1826B-1/2 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 turnaround and reliable sealing performance are critical.
Full product record
PPG PR1826B-1/2 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 turnaround and reliable sealing performance are critical.
This sealant is supplied as a two-part polythioether system in a Semkit format, enabling 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 fluids, making it suitable for sealing critical areas such as fuel tanks and fuselage joints. Its rapid curing characteristics make it particularly effective for time-sensitive maintenance, helping reduce aircraft downtime and support quick return-to-service.
Specifications and approvals should be confirmed against the current TDS, AMM or OEM documentation before use.