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PR-1750 Fuel Tank Sealant

Description

PR-1750 is a high temperature aircraft integral fuel tank sealant. It has a service temperature range from -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 360°F (182°C). This material is designed for brush sealing of fasteners in 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.

Class ACollapse/Expand

PR-1750 Class A is a two-part, manganese dioxide cured polysulfide compound. The uncured material is suitable for application by brush in thickness up to 25 mils. Tested in accordance with AMS 3276 Class A specifications.

It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.

Specifications

AMS-3276 MMS-332 FMS1044
DTD900/6092 MS215022 WL5.5904

Technical Data Sheet for PR-1750 Class A (pdf)

Class BCollapse/Expand

PR-1750 Class B is a two part, manganese dioxide cured polysulfide compound. The uncured material is a low sag, thixotropic paste suitable for application by extrusion gun or spatula. Tested in accordance with AMS 3276 Class B specifications.

It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.

Specifications

AMS-3276 FMS1044 DTO120LB0006
MMS-332 MS215022 LMA-MU044
BLGE552101 CVA6-596 LMS11880
ACS-MRS-7003    

Technical Data Sheet for PR-1750 Class B (pdf)

Standard PackagingCollapse/Expand

PR-1750 comes in the following packaged configuration:

  • Two-Part Can Kit packaged with part A and part B pre-measured into separate containers.
  • Pint Kit with 12 fl. oz. of sealant
  • Semkit® package - a complete package assembly that stores, mixes, and applies sealant. Semkit® packages eliminates the labor intensive task of measuring and handling materials, and prevents contamination when opening and closing can kits.
  • Model 654 Semkit® with 3-1/2 fl. oz. of sealant in a 6 oz. cartridge
  • Model 655 Semkit® with 2 fl. oz. of sealant in a 2-1/2 oz. cartridge
  • Premixed and Frozen (PMF) Class B only. - Pre-measured mixed material and frozen at extreme low temperature (also shipped and stored frozen). PMF material is the most convenient package configuration for high usage applications, simply thaw and use.
  • PMF 5-3/4 fl. oz. of sealant in a 6 oz. cartridge
  • PMF 2-1/4 fl. oz. of sealant in a 2-1/2 oz. cartridge
  • Other packaging configurations may be available.

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Specification information provided for reference purpose only. Review specification QPL for verification or consult with engineering services.