Also found in: Dictionary, Thesaurus, Medical.
Related to seal coat: tack coat
seal coat[′sēl ‚kōt]
A layer of bituminous material applied to bituminous macadam or concrete to seal the surface.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
1. A liquid coat which seals wood, plaster, etc., and prevents the surface from absorbing paint or varnish; may be transparent; may act as a primer for a following coat or as a finish for the surface.
2. A coat, applied in liquid form, which is laid over a tar-like substance to prevent its bleeding through an applied paint film.
3. A finishing coat of a bituminous substance, asphalt, concrete, etc., to seal it against moisture.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.