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A platform for research: civil engineering, architecture and urbanism
Good Practices in Painting Steel Elevated Tanks and Standpipes
In order to prolong the life of paint, the surface to be painted should be adequately prepared. This is true for both the interior, or water‐immersed, surfaces and for the exterior, or weather‐exposed, surfaces. When the steel plates are rolled or dished in fabrication, the mill scale is cracked and left in such a condition that moisture penetrating the paint film may cause corrosion underneath the mill scale, which results in the lifting and breaking, or bulging, of the paint film. The types of paints most resistant to this kind of damage are those that have enough strength and thickness to resist the loosening of the mill scale. Such paints are the heavy tar coatings and the cement linings. The wax or grease coatings are more tolerant to mill scale than the usual paints, because the plasticity of the coating permits some movement of the mill scale without a breaking of the protective film. It has, however, been well proven that even the heavy tar coatings, cement linings, waxes, and greases last longer and give more economical service if the mill scale is completely removed. Toxicity from lead absorption is also discussed.
Good Practices in Painting Steel Elevated Tanks and Standpipes
In order to prolong the life of paint, the surface to be painted should be adequately prepared. This is true for both the interior, or water‐immersed, surfaces and for the exterior, or weather‐exposed, surfaces. When the steel plates are rolled or dished in fabrication, the mill scale is cracked and left in such a condition that moisture penetrating the paint film may cause corrosion underneath the mill scale, which results in the lifting and breaking, or bulging, of the paint film. The types of paints most resistant to this kind of damage are those that have enough strength and thickness to resist the loosening of the mill scale. Such paints are the heavy tar coatings and the cement linings. The wax or grease coatings are more tolerant to mill scale than the usual paints, because the plasticity of the coating permits some movement of the mill scale without a breaking of the protective film. It has, however, been well proven that even the heavy tar coatings, cement linings, waxes, and greases last longer and give more economical service if the mill scale is completely removed. Toxicity from lead absorption is also discussed.
Good Practices in Painting Steel Elevated Tanks and Standpipes
Jackson, James O. (author)
Journal ‐ American Water Works Association ; 52 ; 191-198
1960-02-01
8 pages
Article (Journal)
Electronic Resource
English
Storage Tanks , Coatings , Absorption , Grease , Linings , Lead , Steel , Paint , Toxicity
Maintenance of Elevated Tanks and Standpipes
| Wiley | 1942