This two-part fuel tank sealant is designed for brush and fay sealing applications in aircraft. It withstands temperatures from -65 to 250 degrees F, with short-term exposure up to 275 degrees F. The cured sealant offers strong adhesion to various substrates and maintains elastomeric properties when exposed to jet fuel and aviation gas.
WARNING: This product can expose you to chemicals including CARBON BLACK (AIRBORNE, UNBOUND PARTICLES OF RESPIRABLE SIZE [= 10 MICROMETERS]), TITANIUM DIOXIDE (AIRBORNE, UNBOUND PARTICLES OF RESPIRABLE SIZE) and TOLUENE which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Overview
P/S Class C is an integral fuel tank sealant. It has a service temperature range from -65 to 250 degrees F with intermittent excursions up to 275 degrees F. This material is designed for brush and fay sealing of fuel tanks and other aircraft fuselage sealing applications. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas. P/S 890 Class C is a two part, manganese dioxide cured polysulfide compound. The uncured material is a roller grade liquid suitable for application by brush, extrusion gun or spatula. It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.
Specifications
Series: P/S 890 Class C
Container Size: 6 oz
Form: Liquid (Part A/B)
Color: Black/White (Part A/B)
Composition: 25 to <50% Manganese (IV) Dioxide, 25 to <50% Hydrogenated Terphenyl, 5 to <7% Zeolites, 2 to <3% Talc, 2 to <3% Carbon Black, 1 to <2% Terphenyl, 1 to <2% 1,3-Diphenylguanidine, 1 to <2% Bis(Piperidinothiocarbonyl) Hexasulfide, 0.1 to <0.2% Silica (Part A), Propane, 1,2,3-Trichloro-, 50 to 100% Polymer with 1,1'-[Methylenebis(Oxy)]Bis[2-Chloroethane] and Sodium Sulfide (Na2(Sx)), Propane, 1,2,3-Trichloro-, 3 to <5% Polymer with 1,1'- [Methylenebis(Oxy)]Bis[2-Chloroethane] and Sodium Sulfide (Na2(Sx)), 2 to <3% Titanium Dioxide, 0.5 to <1% Toluene, 0.2 to <0.5% Phenol-Formaldehyde Resin, 0.1 to <0.2% Tetramethyl Thiuram Disulfide, <0.1% Terphenyl (Part B)
Application Time: 48 hr
Curing Time: <3 weeks
Specific Gravity: 1.54
Tack-Free Time: >80 hr
Application Method: Brush, Extrusion Gun, Spatula
Shelf Life: 183 days
Storage Temperature: 80 deg F
Appearance: Paste
Relative Density: 1.76 (Part A), 1.57 (Part B)
Tensile Strength: 300 psi
Flash Point: 67.22 deg C (Part B)
Boiling Point: 360 deg C (Part A), >37.78 deg C (Part B)
DISCLAIMER: Product information provided “as is.” Boeing may add, change, discontinue or remove this information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
