TT-C-490 Revision F, “Chemical Conversion Coatings and Pretreatments for Metallic Substrates (Base for Organic Coatings),” has just been released and is available now from Document Center Inc. in either pdf or paper format. This federal specification replaced MIL-C-490 and MIL-P-14504 and is one of the most commonly used plating specifications we sell.
TT-C-490F covers processes, pre-treatments, and pre-primer surface preparations of metallic substrates for coating applicators. It covers metal surface preparation for delaying corrosion initiation and promoting primer adhesion. In addition, this specification covers the testing requirements for qualification of conversion coatings, the pre-treatments and pre-primer coatings.
The new 24-page revision has extensive changes from the now-obsolete 17-page TT-C-490E from 2002, so there are no lines in the margins showing you the updated material. Changes appear to have been made throughout the document.
Document Center Inc. has been providing mil-specs and standards to industry for over 30 years, and since 1993 on our website, www.document-center.com. You can count on us to provide you with the latest information and updating services that are not available from many other sources. Feel free to get in touch with us by phone (650-591-7600), fax (650-591-7617) or email (email@example.com). We have the expertise to assist you with not only your standards purchases but other management services you need to keep your collection in good working order.