"Flexible, Low VOC, Rapid-Cure, Topcoat-Compatible Aircraft Primer Coating"

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,965.00
Award Year:
2007
Program:
STTR
Phase:
Phase I
Contract:
FA9550-07-C-0124
Agency Tracking Number:
F074-010-0157
Solicitation Year:
2007
Solicitation Topic Code:
AF07-T010
Solicitation Number:
n/a
Small Business Information
INFOSCITEX CORP.
303 Bear Hill Road, Waltham, MA, 02451
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
004627316
Principal Investigator:
Robert Kovar
Principal Scientist
(781) 890-1338
bkovar@infoscitex.com
Business Contact:
William Thompson
Contracts Manager
(781) 890-1338
bthompson@infoscitex.com
Research Institution:
UDRI
Robert Boehmer
300 College Park
Dayton, OH, 45469
(937) 229-2919
Nonprofit college or university
Abstract
Current polysulfide based aircraft primers have excellent flexibility/elongation properties and do not fail around seams and fasteners. These primers, however, do not comply with the stringent emission regulations set forth by NESHAP due to excess VOC content. Additionally, these primers cure slowly under humid conditions and reduce the weatherability of topcoat/primer system due to migration of un-reacted polysulfide components into the topcoat. In response to these deficiencies, Infoscitex proposes to develop a sprayable, low VOC polysulfide (LVPS) primer coating that has four hour pot life after mixing, cures to tack-free, walk-on status within 4-8 hours under humid conditions and is compatible with current chromate-free corrosion inhibitors. The LVPS coating will be designed to be compatible with the MIL-PRF-85285D topcoat standard and will provide >60% GE impact elongation and excellent adhesion. This will be accomplished by formulating a flexible, rapid-cure, chemically-modified polysulfide binder resin that addresses the issues associated with previous polysulfide coatings. Phase I efforts will focus primarily upon developing the LVPS, preparing low VOC spray-coated test panels and demonstrating adhesion, flexibility and topcoat compatibility. In Phase II, the LVPS primer will be refined to further reduce VOC/HAPS as well as replace Chromium (VI) corrosion inhibitors with environmentally-compliant materials.

* information listed above is at the time of submission.

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