PR-1428 Class A is a low adhesion, two-part sealant designed for use as an access door sealant or in the fabrication of form-in-place (FIP) gaskets. It has a service temperature range of -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C).
PR-1428 Class A is a manganese dioxide cured polysulfide compound. The uncured material is suitable for application by brush in thicknesses up to 25 mils. It cures at room temperature to form a removable seal on common aircraft substrates.
A-2 properties
Application life: 2 hours
Specifications: MIL-S-8784 Class A-2; DHMS-S3.02 Class A-2
| Packing | 6 OZ |