PPG PR-1440 Class B is a two-part, manganese dioxide-cured polysulfide fuel tank sealant with a service temperature range of -65°F to 250°F and intermittent excursions up to 275°F. It has a 30-minute application life (Class B-1/2).
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Overview
PR-1440 Class B is designed for fillet sealing fuel tanks and fuselage areas. The low-sag, thixotropic paste cures at room temperature to a resilient seal with excellent adhesion and elastomeric properties after prolonged exposure to jet fuel and aviation gas. It meets MIL-S-8802 Class B test methods.
Features & Benefits
Efficient room temperature cure forms a resilient sealant
30-minute application time with 14-day full cure at 77°F
Mixing ratio of 10:100 by weight (Part A:Part B)
Withstands tensile strength of 300 psi
Offers aggressive adhesion to aircraft substrates
Maintains elastomeric properties after exposure to jet fuel and aviation gas
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