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Time is Money: Improving Shop & Field Painting Throughput by Reducing Finish Coat Handling Time

Handling and transportation of finish coated steel from the fabrication shop to the project site is impacted by the length of time that the finish coat must dry. Known as shop-field throughput, a reduction in the dry time required prior to handling (without compromising performance), as well as a minimization of handling damage can greatly reduce project costs. 

Product Number: 41211-595-SG
Author: Benjamin Fultz, William D. Corbett, Kurt Best
Publication Date: 2011
Industry: Coatings
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Handling and transportation of finish coated steel from the fabrication shop to the project site is impacted by the length of time that the finish coat must dry. Known as shop-field throughput, a reduction in the dry time required prior to handling (without compromising performance), as well as a minimization of handling damage can greatly reduce project costs. The authors believe that it may be possible to save at least one or possibly two full days of throughput time by using a two coat system (organic zinc or inorganic zinc silicate primer with a fast dry finish coat) compared to a two-coat or three-coat system with a slower drying finish coat. Additionally, faster dry times reduce the risk of dust, abrasive and other airborne contaminants from becoming embedded into the finished product. This study compares the handling time of three generic types of high performance finish coats cured under normal and cold/damp conditions, applied as two and three-coat systems, using traditional standardized test procedures as well as novel testing procedures designed to simulate actual handling and environmental conditions in the shop or field.

Handling and transportation of finish coated steel from the fabrication shop to the project site is impacted by the length of time that the finish coat must dry. Known as shop-field throughput, a reduction in the dry time required prior to handling (without compromising performance), as well as a minimization of handling damage can greatly reduce project costs. The authors believe that it may be possible to save at least one or possibly two full days of throughput time by using a two coat system (organic zinc or inorganic zinc silicate primer with a fast dry finish coat) compared to a two-coat or three-coat system with a slower drying finish coat. Additionally, faster dry times reduce the risk of dust, abrasive and other airborne contaminants from becoming embedded into the finished product. This study compares the handling time of three generic types of high performance finish coats cured under normal and cold/damp conditions, applied as two and three-coat systems, using traditional standardized test procedures as well as novel testing procedures designed to simulate actual handling and environmental conditions in the shop or field.

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