Country of Origin
United States
Shipping Weight
2.5 pounds
Manufacturer P/N
PR-1428 A-1/2
Schedule B Code
3214.10.0010
Ship Dimensions
4 x 4 x 6 inches
Spec
MIL-S-8784B Class A-1/2
This Pint of PRC-Desoto PR-1428 Class A is a low adhesion access door sealant with a 1/2 hour application life. It has a service temperature range from -54°C (-65°F) to 121°C (250°F), with intermittent excursions up to 135°C (275°F). The material is designed for use as an access door sealant or in the fabrication of formin-place (FIP) gaskets. It has excellent resistance to aircraft fuels and lubricating oils.
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.
Approvals/References/Specification
SAE Specification: AMS3284 Type 1 Class A-1/2 US Military Specification: MIL-S-8784 Type 1 Class A-1/2
Application Properties (typical) | | Color | Part A - Black Part B - Red Mixed - Dark Red | Mixing ratio | Part A:Part B - 10:100 | Base Viscosity | (Brookfield #6 @ 10 rpm), Poise (Pa-s) - 400(40) | Application Life and Cure Time (A-1/2) | Application life - 1/2 hour Tack free time - < 6 hours Cure time to 30 A Durometer - 10 hours | |
For specific details, application data, and more about PRC-Desoto PR-1428 Class A Access Door Sealant please download and view this PDF, click here.
Safety Data Sheet