Oxidized bitumen constitutes one among the foremost cheap film-forming materials to use in coating compositions, and has found widespread use in various sorts of paints, cements, pipe coatings, metal primers, and similar compositions. modify bitumen has various edges over several altogether completely different bituminous materials to use in such compositions visible  of the temperature standing, toughness, abrasion resistance, and weathering properties of the applied films. However, modify bitumen has one determined disadvantage to use in coating compositions; considerably, its tendency to provide solutions of undesirably high body, or solutions that tend to extend in body on aging. These undesirable body characteristics more pronounced in some solvents than in others, and ar significantly unhealthy among the case of the additional volatile crude solvents. The initial high body of modify bitumen solutions is, of course, undesirable, visible  of the subsequent low solid content of solutions having viscosities sufficiently low for application by the while a substitute for slightly of the latter, with none substantial increase in body of the answer.

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