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A.W. Chesterton

Chesterton Introduces S7 AR Erosion-Resistant Coating Designed to Protect Flue Gas Desulfurization Systems

A.W. Chesterton Company has released ARC S7 AR, a sprayable, erosion-resistant version of its ARC S7 coating. This state-of-the-art lining is especially engineered for surfaces exposed to condensing flue gas with erosive particulates in gas flow.

“This level of protection can significantly extend equipment life,” says Steve Bowditch, Global Market Development Manager for ARC Efficiency and Protective Coatings. “Less erosion translates to fewer problems and more uptime.”

  • The ARC S7 AR lining is comprised of silicon carbide particles and micronized glass flake reinforcements that are suspended in a high-performance Novolac vinyl ester resin.
  • It can be easily applied by conventional airless spray at film thickness of up to 0,6mm (25 mils) per coat.
  • When cured, ARC S7 AR forms a film which provides exceptional resistance to erosive particulate flow under elevated temperature condensing gas exposures seen in flue gas and desulfurization environments.
  • In immersion applications where permeation concerns exist, ARC S7 AR can be applied as an erosion-resistant topcoat at its prescribed dry film thickness on top of a 0,375-0,5mm (15-20 mil) coat of ARC S7.

ARC S7 AR can withstand continuous exposure up to 180C (355F) and repeated thermal cycling, from 20-180C (65-355F), without cracking or dis-bonding. It has exceptional chemical resistance when exposed to organic as well as inorganic acids under wide concentration ranges. When tested under Taber Wear Testing (ASTM D4060), using the most aggressive H18 wheel with 1000 cycles and a 1 kg load, the S7 AR experienced <275mg loss.

Available in two contrasting colors (Light Gray and Dark Gray), ARC S7 AR has a VOC level of 10g/liter, making it a safe and environmentally acceptable option where concern for VOC levels exist.

Download this Free eBook: Flue Gas Desulfurization Systems: Using Protective Coatings to Reduce Energy Demands

 

About A.W. Chesterton Company
Operating in over 100 countries around the world, Chesterton is recognized as a leading provider of knowledge backed solutions and expert service for Rotary, Stationary, and Fluid Power equipment supported by a comprehensive line of industrial fluid sealing solutions, high performance protective coatings, and specialty industrial lubrication/MRO products.

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