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.
