Novel Conversion Coatings for Magnesium and Zinc-Nickel based on Cr(III) and Silanes

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8117-09-C-0007
Agency Tracking Number: F083-226-0050
Amount: $98,824.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2008
Solicitation Topic Code: AF083-226
Solicitation Number: 2008.3
Small Business Information
ECOSIL Technologies LLC
160 A Donald Drive, Fairfield, OH, 45014
DUNS: 146404442
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 William van Ooij
 Chief Executive Officer
 (513) 858-2365
Business Contact
 Max Sorenson
Title: Chief Executive Officer
Phone: (513) 858-2365
Research Institution
We are proposing to develop a novel coating system for plated zinc-nickel fasteners and for cast magnesium alloys. The new system is based on the use of Cr(III) conversion coatings, but we will develop one from scratch. The system will come in three different versions, two of which contain silane in some form. Version I is the Cr(III) conversion coating with the silane added to the Cr(III) Bath. Version II is the Cr(III) conversion coating, but it has the silane as a sealer system. Version III is the silane by itself. Its corrosion protection performance is enhanced by adding a leachable inhibitor and a small amount of water-dispersed resin system.   BENEFIT: The proposed systems are environmentally attractive as they do not contain hexavalent chromium. Their corrosion protection performance will be as good as or better than that of Cr(VI) conversion coating. The paint adhesion will be excellent due to the silanes in the systems. The coatings are applied at rather low temperatures and will be fully removable. In addition to zinc-nickel and magnesium, other metals can be treated as well.

* information listed above is at the time of submission.

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