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PPG's Chrome-Free Aerospace Sealant Meets Military Specifications

Posted By ASC, Wednesday, July 5, 2017

At this year’s Paris Air Show, PPG announced that its new chrome-free sealants had been given full approval for use in military aircraft. Apart from presenting a more environmentally sustainable option than older forms of such sealants, additional advantages accrue. The Nato NSN approval awarded to the sealants means that the new materials can be adopted without any need for further purchasing approval.


PPG has two chrome-free sealant products with differing uses. The first of these, PR-1425CF, is a polysulfide windshield and canopy sealant. It can be used on polycarbonate, glass or acrylic windows and will cure in in half the time needed for older iterations of the product.PPG’s PR-2870 sealant, on the other hand, is used for aerodynamic smoothing. It can also be used to seal structural surfaces, be used for fay sealing, or to seal pressure fuselage. Both sealants will cure within 12 hours.

Tags:  Industry News 

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