flux oil[′fləks ‚ȯil]
An oil suitable for blending with bitumen or asphalt to form a product of greater fluidity or softer consistency.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.