PPG PR-1826® Class B Rapid Curing Fuel Tank Sealant

PPG PR-1826 Class B sealant is a rapid cure, intergral fuel tank sealant with a service range from -80°F to 320°F with short excursions up to 420°F. It is designed for fillet sealing of fuel tanks and maintains excellent elastomeric properties after exposure to jet fuel and aviation gas. This two-part epoxy cured PERMAPOL® P-3 polythioether compound is applied by extrusion gun or spatula.

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Product Details

PPG PR-1826 Class B sealant is a rapid cure, aircraft integral fuel tank sealant. It has a service temperature range from -80°F (-62°C) to 320°F (160°C), with intermittent excursions up to 420°F (216°C). This material is designed for fillet sealing of fuel tanks and other air- craft fuselage sealing applications. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas. PR-1826 Class B sealant is a two-part, epoxy cured PPG Permapol P-3 polythioether compound. The uncured material is a low sag, thixotropic paste, suitable for application by extrusion gun or spatula. Unlike standard polysulfide fuel tank sealants, it can cure at low temperatures and is unaffected by changes in relative humidity. This sealant has excellent adhesion to common aircraft substrates when correctly primed with PPG PR-1826 AP Adhesion Promoter. /p>