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100% Solids Ambient Cure Liquid Pipeline Exterior Coating With Excellent CD Results

Epoxy coatings have long been the work horse for Maintenance and Protective Coatings (M&PC) due to their excellent corrosion resistance excellent heat and chemical resistance good mechanical properties as well as excellent adhesion to various substrates. The epoxy resins are typically based on bisphenol A diglycidyl either (BADGE) bisphenol F diglycidyl either and epoxy phenol novolacs; and they are usually very viscous in nature and therefore require a high volume of solvent to reduce the viscosity for easier application. There is a strong desire among participants throughout the M&PC value chain to reduce the emission of volatile organic compounds (VOCs) as well as the human health impact of these coatings. One hundred percent solids coatings are one route to that objective.Olin Epoxy has designed a 100% solids formulated epoxy and hardener system based on this approach. This paper documents the performance of this system against a well-known commercial benchmark for external pipe coating applications. Fully pigmented 2K liquid pipe coating formulas will be described and modifications of the formula to meet different volume mixing ratios will also be discussed. Various performance aspects of experimental and commercial benchmarks will be compared including pot life Konig hardness dry time impact resistance and cathodic disbondment (CD) at elevated temperatures. CD test results at dry film thickness (DFT) above 30 mils and less than 20 mils are also discussed.The range of conditions under whichthis high solidssystem can be applied and good performance achieved will also be summarized.

Product Number: 51319-12823-SG
Author: Eric Ripplinger
Publication Date: 2019
$0.00
$20.00
$20.00
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