Sealants

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TitleProduct Description and UseSpecificationsChem Seal SealantsChemistryApplicationSDSTech
Midweight Fuel Tank SealantDesigned to withstand the attack of sulfur compounds present in jet fuels. Also used as pressurized cabin sealant. The density is less than 1.4. Without OPEO/NPEO and terphenyl.AMS-S-8802 Type IICS 135Polysulfide / Manganese DioxideFuel Tank Sealant

Class B Part A

Class B Part B

Firewall SealantUsed for sealing firewall structures. It is elastomeric and is able to withstand intermittent temperatures of up to 2000 deg. F.Mil-S-38249 Type ICS 1900Epoxy / AmineFirewall

Part A Base

Part B Base

Aluminum Exterior SealantRecommended for sealing external seams, depressions and gaps on aircraft to yield weather tightness and achieve aerodynamic smoothness. Withstands jet fuels and weathering. Available in Application Times of 1/2 hour and 2 hours.DMS 1819,
Mil-S-38228,
STM40-006 		CS 2415Polysulfide / Manganese DioxideFuselage Sealant

Part A Class B-half

Part A Class B-2

Part B Class B-2

Part B Class B-1/2

Epoxy Bonding CompoundHigh adhesion to most construction materials. Used for repairing spalled and cracked areas in concrete, plaster, stucco, stone, slate, wood and tile. Also used as a mortar for ceramic tile, stone work, block and brick.DOD-C-24176
Type I and II		CS 2725Epoxy / AmineSpecialty Adhesives and Sealants

Part A Base

Part B EPOXY BONDING COMPOUND-CATALYST

Flexible Epoxy Joint SealerUsed as concrete joint sealer. Excellent adhesion to concrete, wood and other materials without primer. LOX compatible.Air Force SpecCS 2727Epoxy / AmineSpecialty Adhesives and Sealants

Part A Base

Part B FLEXIBLE EPOXY JOINT SEALER-CATALYST

Potting & Sealing CompoundFor sealing and moisture proofing adhesive bonded structures. Available in three application times and three consistencies.Mil-PRF-8516CS 3100Polysulfide / Lead DioxideElectrical Potting Compounds

Part A Type I

Part A Type 2

Part B Type I Class 1

Part B Type I Class 2

Part B Type I Class 3

Part B Type 2 Class 1

Part B Type 2 Class 2

Part B Type 2 Class 3

Potting & Sealing CompoundFor sealing and moisture proofing adhesive bonded structures. Available in three application times and three consistencies.STM-M225-5CS 3100MPolysulfide / Lead DioxideElectrical Potting Compounds
Low Adhesive Potting CompoundSimilar to CS 3100 with the exception of Low Adhesion. Its low adhesive strength makes it possible to remove the encapsulating material from connections.131208-27, modified
Mil-PRF-8516
to Flamemaster Specification		CS 3104MPolysulfide / Lead DioxideElectrical Potting Compounds

Junction Box SealerThixotropic, polysulfide sealant suitable for use in edge seal encapsulation. Easily applied with an extrusion gun or spatula.Flamemaster Specification
CS 3105Polysulfide / Lead DioxideElectrical Potting Compounds

Part A Base

Part B CATALYST

Sealing CompoundFor aircraft structures. Cures at room temperature to a flexible resilient rubber with excellent adhesion to metals. Available Class A and Class B various application times. Colors- Tan or BlackAMS 7124 formerly
Mil-S-7124
& Mil-S-7502		CS 3201 CLASS A & BPolysulfide / Lead DioxideElectrical Potting Compounds

Part A Class A Tan

Part B Class B-HALF

Part B Class B-2

Part B Class A-HALF

Part B Class A-2

Part A Class B Tan

Part A Class B Black

Part A Class A Black

CS 3201 Class A

CS 3201 Class B

Optical Sealing CompoundUsed for bonding glass to metal in optical instruments or fire control instruments. Standard application time about 3 hours.Mil-S-11031B
AA 59293		CS 3202Polysulfide / Lead DioxideSpecialty Adhesives and Sealants

Part A Class B

Part B Class B-1-2

Part B Class B-2

Part B Class B-3

Integral Fuel Tank SealantDesigned to withstand the attack of sulfur compounds present in jet fuels. Also used as pressurized cabin sealant.AMS-S-8802 formerly
Mil-S-8802F Type II		CS 3204 CLASS B & CPolysulfide / Manganese DioxideFuel Tank Sealant

Part A 20-Hour Weld Through

Part A Class A Black

Part A Class A Modified Block Flow

Part A Class A

Part A Class B Black

Part A Class B

Part A Class C-8

Part A Class C-20

Part B 20 hour Weld Through

Part B Class A-1-2 Modified Block Flow

Part B Class A-1/2

Part B Class A-1/4

Part B Class A-1

Part B Class A-2 Modified Block Flow

Part B Class A-2

Part B Class B-2

Part B Class C-8

Part B Class C-20

Class A

Class B

Weld Through SealantConductive, Fuel resistant faying surface sealant for metal parts joined by spot welding.MIS-31868CCS 3204 WTPolysulfide / Manganese DioxideFay Surface

Part A Class WT-20 Base

Part B Class WT-20

Integral Fuel Tank SealantDesigned to withstand the attack of sulfur compounds present in jet fuels. Also used as pressurized cabin sealant. This is a rapid curing material.AMS-S-8802 formerly
Mil-S-8802F Type II		CS 3204RPolysulfide / Manganese DioxideFuel Tank Sealant

Part A Class A Rapid Cure

Part A Class B-half Rapid Cure

Part B Class B-1/2 Rapid Cure

Part B Class B-2 Rapid Cure

Integral Fuel Tank SealantDichromate cured polysulfide base compound. Type-1 AMS-S-8802 material will readily cure in the absence of humidity and therefore ideal for application in dry or desert climates. This material has a higher overall performance then the Type-2 material.AMS-S-8802 (Type I)CS 3205Polysulfide / DichromateFuel Tank Sealant

Part A Class B

Part B Class B-HALF

Part B Class B-2

Quick Repair fuel resistant SealantCS 3206 was originally designed for quick repair of fuel tanks and cabin pressure fuselage sealing. Due to its ability to cure at temperatures as low as 20°F ( -13°C), it is suitable for multiple other commercial applications.Meets the acceptance tests of AMS-S-83318CS 3206Polysulfide / Manganese DioxideQuick Repair fuel resistant Sealant

Part A Class B-1/2

Electrically Conductive SealantUsed as a faying surface sealant. Meets all the requirements of AMS-S- 8802. Designed to conduct static electricity.STM 40-109 CMNPO94 TY XVCS 3209Polysulfide / Manganese DioxideFay Surface

Part A Class B

Low Density Pressurized Cabin SealantThe low specific gravity of 1.00 can result in substantial weight savings over conventional sealant.STM 40 107CS 3210Polysulfide / Manganese DioxideVoid Filler

Part A Class B

Corrosion Inhibitive SealantA corrosion inhibitive sealant for use in the sealing and coating of metal components on weapons and aircraft systems for protection against corrosion when subject to contact with water and/or weathering.MIL-PRF-81733CS 3213 Class A B & CPolysulfide / Manganese DioxideFuel Tank Sealant

Part A Class A-1/2

Part A Class A-2

Part A Class B

Part A Class C-12

Part A Class C-48

Part A Class C-96

Part B Class A-2

Part B Class A-1/2

Part B Class B-2

Part B Class B-4

Part B Class B-1/2

Part B Class C-48 / C-96 / B-48 / B-96

Part B Slow Class C-12 / B-12

Windshield SealantA windshield sealant for use when setting or repairing windshields and transparencies of Glass, Acrylic, or Polycarbonate in composite or metal frames.AMS 3333CS 3247Polysulfide / Manganese DioxideWindshield Sealant

Part A Class B

Part B Class B-2

Corrosion Inhibitive Access Door SealantA non chromate Corrosion inhibiting sealant, used as an access door sealant for integral fuel tanks and pressurized cabins, as a strippable fillet and as a gasket for removable parts.AMS 3284 Type 2CS 3330 Cl CLASS A CS 3330 Cl CLASS BPolysulfide / Manganese DioxideAccess Door Sealant

Part A Class A Base

Part B Class A

Part A Class B Base

Part B Class B

Cl Class A

Cl Class B

Access Door SealantUsed as a strippable fillet for integral fuel tanks and pressurized cabins, as a strippable fillet and as a gasket for removable parts. Available Class A or Class B, 1/2 hr. or 2 hrs.AMS 3284 Type 1
Formerly Mil-S-8784		CS 3330 CLASS A CS 3330 CLASS BPolysulfide / Manganese DioxideAccess Door Sealant

Part A Class A

Part A Class B

Part B Class A-2

Part B Class A-1/2

Part B Class B-2

Class A

Class B

Top Coat & AdhesiveFuel tank, Buna N Type and high bond strength adhesive. Protective coating for synthetic rubber sealant and metal surfaces of integral fuel tanks. Protection against oils, fuels, fresh or salt water, corrosion and weathering.AMS 4383
formerly Mil-S-4383		CS 3600Rubber-basedProtective Coating

Sealant

Room Temperature SiliconeUsed as an insulating coating and thermal barrier in missile applications where heat transfer must be retarded.Pratt & Whitney TS10425 Areojet - AGC 34076CS 3802SiliconeThermal Barrier

Part B Class B-1/2

Part B Class B-2

Room Temperature SiliconeChemically cured it is used for aircraft, missile and electronic applications.BMS-8-68 MMS M138 CS 3808SiliconeElectrical Potting Compounds

Part A Class A

Part A Class B

Part B Class A-1

Part B Class A-2

Part B Class B-2

Part B Class B-4

Part B Class A-1/2

Part B Class B-1/2

Low Density Silicone Thermal BarrierEasily applied, heavy coating to be used in areas where thermal insulation is required. Excellent adhesion, high electrical insulation properties, short term high temperature exposure to 600 deg. F or more.Various Company SpecsCS 3810SiliconeThermal Barrier
Hole-filling CompoundDesigned to plug through holes in airframe structure to maintain the pressure boundary. Excellent adhesion to aluminum, magnesium, titanium, steel, and other materials. Resistant to aircraft fuels, lubricants, oils, water and or weathering.STM40-106CS 4406Polysulfide / Manganese DioxideHole Filling
High Temperature Fuel Tank SealantSealant able to withstand higher temperatures than the standard AMS-S-8802 sealants (excursions to 360°F). Used for sealing fuel tanks as well as the aircraft fuselage.AMS 3276CS 5500NPolysulfide / Manganese DioxideFuel Tank Sealant

Part A Class B Base

Part B Class B-2

Part B Class B-1/2