PR-1428 Access Door Sealant

PR-1428 Class A is a low adhesion sealant. It has a service temperature range from -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). The material is designed for use as an access door sealant or in the fabrication of form-in-place (FIP) gaskets.

PR-1428 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.  It cures at room temperature to form a removable seal to common aircraft substrates.

Specifications:
MIL-S-8784
DHMS-S3.02
WS26056

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

PR-1428 Class B is a low adhesion sealant. It has a service temperature range from -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). The material is designed for use as an access door sealant or in the fabrication of form-in-place (FIP) gaskets. It can also be used to protect electrical wires, 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.

Specifications:
BMS5-37 TY I
MIL-S-8784
DHMS-S3.02
5PTMUB06
CMNP022

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

Technical Data Sheet for PR-1428 Class B