Chemical treatment No.7 (dichromate) is a chemical dip conversion coating and is most commonly used for magnesium and its alloys. The applied coatings may vary from light to dark brown, with no appreciable dimensional change, normally applied after machining and before painting. The coating possesses good base paint qualities and protects parts during shipment and storage. Dow 7 conforms to Specifications Mil-M-3171 Type III and AMS 2475.

For information about how Dow 7 Chemical Dip Conversion Coating can help improve your next magnesium coating project, call 708-222-5317, or send us an e-mail, or submit the quick and easy form on the Contact Us page.