Inventors:
Alan William Atkinson - Nr Rugby, GB
Stephen Peter Bond - Rugby, GB
Darryl Alfred Turland - Ann Arbor MI, US
Assignee:
Federal-Mogul Technology Limited - Warwickshire
International Classification:
C04B 28/26
F02F 11/00
US Classification:
524449, 524442, 277591, 277592, 277595, 428 664
Abstract:
A sealing-enhancing coating for a gasket or a portion of a gasket includes flaky particles of chemically exfoliated vermiculite, at least 90% by weight of the particles having a thickness of no more than 30 microns, and no dimension greater than 1 mm. The particles form 10 to 90 wt. % of the coating. The coating also includes 50 to 10 wt. % of an organic polymer binder which when formed into a film 1 mm or less in thickness and heated to 300 C. in free air for 24 hours either does not decompose or decomposes leaving a residue of at least 20% by weight of film.