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SAE AMS3374/4

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SAE AMS3374/4 Revision A, February 1, 2011 Sealing Compound Two-Part, Polysulfide (Type 4) Firewall Sealant
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Description / Abstract: Form:

This specification covers two-part, high temperature resistant polysulfide compounds.

Application:

This product is used primarily for sealing aircraft firewall structures against passage of air and vapors. The cured compound shall remain an effective sealant at all temperatures between −65 and +400 °F (−54 to +204 °C) and shall be able to withstand a flash temperature of 2000 °F (1093 °C).