PR-2225 Class B is an electrically conductive, corrosion inhibitive sealant. It has a service temperature range from -65°F (-54°C) to 300°F (149°C), with intermittent excursions up to 400°F (204°C). The cured sealant provides excellent electrical conductivity and EMI/RFI shielding. This material acts as an effective barrier against the common causes of corrosion on aluminum alloys or between dissimilar metals. PR-2225 Class B is a two part, nickel filled, condensation cured silicone 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 resilient sealant having excellent adhesion to common aircraft substrates and is compatible with polysulfide sealants.
Technical Data Sheet for PR-2225 (pdf)
PR-1770 comes in the following packaged configuration:
- Semkit® package - a complete package assembly that stores, mixes, and applies sealant. Semkit® packages eliminates the labor intensive task of measuring and handling materials, and prevents contamination when opening and closing can kits.
- Model 654 Semkit® with 3-1/2 fl. oz. of sealant in a 6 oz. cartridge
- Model 655 Semkit® with 2 fl. oz. of sealant in a 2-1/2 oz. cartridge
- Other packaging configurations may be available.
Specification information provided for reference purpose only. Review specification QPL for verification or consult with engineering services.