ARC Efficiency & Protective Coatings Introduces T7 AR Abrasion Resistant Coating
ARC Efficiency & Protective Coatings, a business segment of A.W. Chesterton Company, introduces T7 AR, a high performance abrasion resistant coating for metallic surfaces. T7 AR reportedly resists wet and dry thermal cycling from 135°C (275°F) to 2°C (35°F), pH ranges from .1-12.5 and sliding abrasion wear normally associated with ore refining and processing.
The coating is a trowel-applied, novolac vinyl ester based resin that is reinforced with a specially treated, graded blend of high purity alumina ceramic beads, flakes and powders. Applied at a nominal thickness of 3-4 mm (120-160 mils,) the T7 AR yields a SAR number of <2800 per ASTM G75 and has tested positively under NACE TM 0174 with exposures to a wide ranges of chemicals including 54% phosphoric acid, 50% sodium hydroxide, glacial acetic acid and nitric acid at temperatures ranging up to 85°C (185°F), according to the company. T7AR is designed as a monolithic liner able to replace conventional rubber linings and ceramic tile commonly used in aggressive chemical slurry applications at elevated temperatures.