**THIS ITEM IS EXPIRED, sold AS-IS, with NO CERTIFICATION.**
PPG Aerospace® PR-142 Sealant Adhesion Promoter from SkyGeek is the easy and affordable choice when you need to enhance the coupling characteristics of your favorite polysulfide compounds. The adhesion promoter is sold in a pint-size container so you have plenty of product to use on all of your projects. PR-142 works well with most substrates and can even be used on aircraft windshield applications where substrate crazing is an issue. The one-part compound can be applied using a brush or gauze depending on your needs. PPG Aerospace® PR-142 Sealant Adhesion Promoter is value priced, but quantity discounts are also available.