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Penny Wise of Pound Foolish? Holding Primers for Solvent Free Epoxy Tank Lining

Coating practitioners are aware that single coat, thick film solvent-free epoxy linings have gained acceptance for their promise of productivity benefits which include a potential quick return to service for newly applied tank linings. From the vantage point of owners, applicators, inspectors and coating manufacturers this paper examines productivity and performance issues associated with a tandem approach of using a thin film solvent borne epoxy holding primer (especially over pitted steel) with a coat of solvent-free epoxy lining as opposed to using a single coat of a solvent-free lining applied direct to metal. 

Product Number: 51219-207-SG
Author: Mike O'Donoghue, Vijay Datta, Margaret Pardy
Publication Date: 2019
Industry: Coatings
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$20.00
$20.00

Coating practitioners are aware that single coat, thick film solvent-free epoxy linings have gained acceptance for their promise of productivity benefits which include a potential quick return to service for newly applied tank linings. From the vantage point of owners, applicators, inspectors and coating manufacturers this paper examines productivity and performance issues associated with a tandem approach of using a thin film solvent borne epoxy holding primer (especially over pitted steel) with a coat of solvent-free epoxy lining as opposed to using a single coat of a solvent-free lining applied direct to metal. The ramifications of pitted steel, abrasive blast profiles, times to complete lining applications, holidays in the linings, and the effect of solvents and proper choice of holding primer are outlined with respect to the ultimate performance of the lining.

Coating practitioners are aware that single coat, thick film solvent-free epoxy linings have gained acceptance for their promise of productivity benefits which include a potential quick return to service for newly applied tank linings. From the vantage point of owners, applicators, inspectors and coating manufacturers this paper examines productivity and performance issues associated with a tandem approach of using a thin film solvent borne epoxy holding primer (especially over pitted steel) with a coat of solvent-free epoxy lining as opposed to using a single coat of a solvent-free lining applied direct to metal. The ramifications of pitted steel, abrasive blast profiles, times to complete lining applications, holidays in the linings, and the effect of solvents and proper choice of holding primer are outlined with respect to the ultimate performance of the lining.

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