This two-part aircraft fuel tank sealant is designed for fillet sealing and fuselage applications. It features a manganese dioxide cured polysulfide compound that cures at room temperature, providing strong adhesion to various aircraft substrates. The sealant maintains elastomeric properties even after extended exposure to jet fuel and aviation gas.
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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 B is an aircraft integral fuel tank sealant. This material is designed for fillet 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 B is a two-part, manganese dioxide cured polysulfide compound. It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.
Features & Benefits
Thermal rupture resistance for reliable performance
Low temperature flexibility with no cracking, checking, or loss of adhesion
Corrosion resistance with no loss of adhesion or softening after immersion in salt water
Flexibility with no cracks after bending 180 degrees over a 0.125 inch (3.18 mm) mandrel
Resistance to hydrocarbons with minimal weight loss in Type III fuel
Repairable to itself, excellent for both freshly cured and fuel-aged fillets
Outstanding resistance to water, alcohols, petroleum-based and synthetic lubricating oils, and petroleum-based hydraulic fluids
Fungus resistant and non-nutrient
Specifications
Series: P/S 890
Container Size: 1 pt
Form: Liquid (Part A), Solid (Part B)
Color: Black/White (Part A/B)
Odor/Scent: Paste
Composition: >=20 to <=50% Manganese Dioxide, >=20 to <=50% Terphenyl, Hydrogenated, >=5 to <=10% Zeolites, >=5 to <=10% Polyphenyls, Quarter and Higher, Partially Hydrogenated, >=1 to <=5% Talc, >=1 to <=5% Carbon Black, >=1 to <=5% Terphenyl, >=1 to <=5% Magnesium Carbonate, >=1 to <=4.6% 1, 3-diphenylguanidine (Part A), >=20 to <=50% Calcium Carbonate, >=1 to <=5% toluene >=1 to <=5% Titanium Dioxide (Part B)
Application Time: 2 hr
Curing Time: 48 hr
Density: 14.96 lb/gal (Part A), 12.52 lb/gal (Part B)
Specific Gravity: 1.55
Viscosity: >21 cSt
Tack-Free Time: <6 hr
VOC Content: 57 g/L
Application Method: Extrusion Gun, Spatula
Shelf Life: 270 days
Storage Temperature: 80 deg F
Relative density: 1.76 lb/gal (Part A), 1.5 lb/gal (Part B)
Flash Point: 153 deg F
Boiling Point: 680 deg F
Temperature Rating: -65 to 250 deg F
Suitable for Use With: Aircraft Fuselage Sealing
Technical Information
AMS-S-8802 Type II Class B-2
Boeing BMS 5-44 Class B-2
Cessna CMNP021 Type I, Class B-2
De Havilland DHMS S307 Class B-2
Lockheed FMS-1049 FORM II and III, Class B-1 Approved
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Product information provided "as is", and Boeing may add, change, discontinue or remove product information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
