PPG Aerospace/PRC DeSoto® Class B Access Door Sealant Cartridge, 6oz PR1428B2

PR-1428 Class B is a low adhesive sealant. It has a service temperature range -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 250°F (135°C). The material is designed for use as an access door sealant or in the fabrication for form-in-place (FIP) gaskets. It can also be used to protect electrical wired, terminals and equipment against fuel moisture, dirt and short circuits.
PR-1428 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. It cures at room temperature to form a removable seal to common aircraft substrates.
Each 6 ounce cartridge contains 3.5 ounces of sealant.

TECHNICAL INFORMATION

• Part A: Black
• Part B: Red
• Mixed: Dark red
• Cured specific gravity: 1.50

SPECIFICATIONS

• BMS 5-37 - Type 1 Class B-1/2 - BOEING
• BMS 5-37 - Type I Class B-2 - BOEING
• DHMS-S3.02 - B-1/2 - DE HAVILLAND INC.
• DHMS-S3.02 - CLASS B-2 - DE HAVILLAND INC.
• MEP 09-082 - CLASS B-1/2 - EMBRAER
• MEP 09-082 - CLASS B-2 - EMBRAER
• MIL-S-8784 - Class B-1/2 - MILITARY SPECIFICATION
• MIL-S-8784 - Class B-2 - MILITARY SPECIFICATION