PPG PR1826 Class B is a rapidly curing aircraft integral fuel tank sealant. It is designed for fillet sealing of fuel tanks and other aircraft fuselage sealing applications.

Technical Information

UN Number 3082 CL9 / 1993 CL3
Commodity Code 32141010
Country of Origin United Kingdom

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Data Sheets

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Product Properties

Pack Size

55ml Semkit

Product Colour

Black | White | Clear

Brand

PPG

Manufacturer Name

PPG Industries

Manufacturer Part Number

PR1826B1/4-1000

Sealant Class

Class B

Application Time

15 Minutes

Product Information

The product is effective at a wide range of temperatures from -62°C (-80°F) to +160°C (+320°F) with intermittent heat excursions up to +216°C (+420°F). Even after prolonged exposure to jet fuel and aviation gas, the cured sealant retains exceptional elastomeric properties.

This sealant is a two-part, epoxy-cured Permapol P-3 polythioether compound. In its uncured state, the material takes the form of a low sag, thixotropic paste, making it suitable for application using an extrusion gun or spatula. Unlike conventional polysulfide fuel tank sealants, PR1826 Class B can cure effectively at low temperatures and remains unaffected by changes in relative humidity.

When properly primed with PR1826AP Adhesion Promoter, this sealant demonstrates excellent adhesion to commonly used aircraft substrates.