Quick View
Product Code: 
Skip to main content
  • basket icon Order & Quote Functionality
  • door icon No Minimum Order Value
  • paper icon Technical Document Library

PR-1440 Guide

PR-1440 is a corrosion inhibitive sealant designed for use on integral fuel tanks and pressurised cabins. Manufactured by PPG, it is commonly used in aerospace applications due to its ability to withstand a wide range of environmental conditions encountered during flight. There are various grades of PR1440. Our full range can be viewed below.

PPG PR-1440 Class A

Class A is designed for brush sealing with application up to 25mm. Used for fasteners in fuel tanks and other aircraft fuselage sealing applications. View the Class A range below.

PPG PR-1440 Class B

Designed for fillet sealing of fuel tanks and other aircraft fuselage sealing applications. Class B is a low sag thixotropic paste, suitable for application by gun or spatula. View Silmids Class B range below.



Definition of product version

 VersionApplication Time
 A-1/2 or B-1/2 1/2
 A-2 or B-2 2
 A-4 4

Here are some key features and characteristics of PPG PR-1440:

  1. Corrosion Protection: PR-1440 provides excellent corrosion protection, making it suitable for use in critical aerospace applications where protection against corrosion is essential.

  2. Compatibility: It is compatible with a wide range of substrates commonly used in aerospace structures, including metals, composites, and coated surfaces.

  3. Flexibility: PR-1440 remains flexible over a wide temperature range, allowing it to accommodate structural movement and vibration without cracking or losing adhesion.

  4. Chemical Resistance: The sealant offers resistance to various chemicals and fluids encountered in aerospace environments, including fuels, hydraulic fluids, and lubricants.

  5. Cure Time: It typically cures at room temperature, although accelerated curing options are available for applications requiring faster turnaround times.