PR-1773® Class B Corrosion Inhibitive Access Door Sealant Dark Red Color

PPG PR-1773 Class B sealant is a low adhesion non-chromate* corrosion inhibitive product with a service range from -65°F to 250°F with short excursions up to 300°F. It is designed for access door sealing and fabricating form-in-place gaskets. This two-part manganese dioxide cured polysulfide compound is a low sag paste applied by extrusion gun or spatula.

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Product Details

PR-1773 Class B sealant is a low adhesion, non-chromate, corrosion inhibitive sealant. It has a service tempera- ture range from -65°F (-54°C) to 250°F (121°C), with intermittent excursions up to 300°F (149°C). The material is designed for use as an access door sealant or in the fabrication of form-in-place (FIP) gaskets.

This material acts as an effective barrier against the common causes of corrosion on aluminum alloys or between dissimilar metals.

PR-1773 Class B sealant 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 temper- ature to form a removable seal to common aircraft substrates.

*Chromium is not intentionally added in the formulation of this product. PPG’s “chrome-free” statement is based on our knowledge of the product formulation.