14th December 2018

CHROME-FREE AIRCRAFT SEALANT

PPG has developed a new anti-corrosion material for use in aircraft, called PR-2870. This chrome-free material is part of the company's family of polythioether aerospace sealants.

Galvanic corrosion is a multi-billion dollar expense for the global aerospace industry, but soluble chromate materials are increasingly viewed as undesirable. The company says PR-2870 not only provides
excellent corrosion inhibition, but reduces both weight and cure rates by up to 30 percent compared to traditional sealants. Lighter weight sealants offer critical fuel savings over the life of the aircraft, and this material is also fast-curing.

www.ppg.com