PR-1776M Class B is a low density, high temperature aircraft integral fuel tank sealant. It has a service temperature range from -65 ° F (-54 ° C) to 250 ° F (121 ° C), with very limited excursions to 360 ° F (182 ° C). This material is designed for fillet sealing of fuel tanks and prolonged exposure to both jet fuel and aviation gasoline (avgas) and will resist limited contact with diphosphate ester-based hydraulic fluids.
PR-1776M Class B is a two component, manganese dioxide cured polysulfide modified with Permapol® P-5. Uncured material is a low sag, thixotropic putty suitable for application by extrusion gun or spatula. It cures at room temperature to form a flexible sealant with excellent adhesion to common aircraft surfaces.
The PR-1776M Class B is designed to be a direct replacement for the PR-1776 Class B.
| General | |
|---|---|
| Packing | 6 OZ or 1 Pint |
| Uncategorized | |
| Specifications | Manufacturer Spec or BMS 5-45 |