ChemPruf 141 ... protection against corrosion.
ChemPruf takes the heat better
01 April 2000
Atlas' new vinylester coating system is claimed to provide 20 deg F higher temperature resistance than standard grade vinylester coatings.
ATLAS Minerals & Chemicals of the US has introduced ChemPruf 141, a glass flake reinforced epoxy novolac-based vinylester coating system which is claimed to offer as much as 20 deg F higher temperature resistance than standard grade vinylester coatings.
"In addition, the new system is resistant to glacial acetic, chromic acid to 20 per cent, nitric acid to 40 per cent and sulfuric acid to 75 per cent. It also provides improved resistance to most solvents," says a spokesman for Atlas. "ChemPruf 141 may be brush, spray or roller applied and provides a durable, seamless finish that protects concrete and steel surfaces from corrosion. The random layers of glass flake, uniformly wetted with the resin, reinforce the coating for resistance to physical stress attributable to thermal cycling," he says.
The coating is recommended for protecting concrete and steel substrates exposed to corrosive spills, fumes and immersion service. ChemPruf 141 represents the latest addition to Atlas' broad line of resin coating and lining systems, he says.
Another new addition is ChemPruf 2211, a fibreglass reinforced, highly-chemical resistant, epoxy resin lining system. This protects structurally-stable steel and concrete substrates from corrosive attack with excellent resistance to impact and cracking, according to the spokesman. Applied at an average thickness of 1/8 inch (3.2 mm), ChemPruf 2211 is composed of a bishenol F epoxy resin, inert fillers and fabric reinforcement.
"Resistant to a broad range of acids, alkalies and solvents, it can be used in immersion service to 160 deg F (71 deg C) and in intermittent splash and fume service to 180 deg F (82 deg C). It provides excellent resistance to 98 per cent sulphuric acid, nitric acid to 40 per cent, chromic acid to 20 per cent, toulene, xylene and 1,1,1-trichloroethane. ChemPruf 2211 lining is an economical alternative to sheet lining in both process and storage tanks," says the spokesman.
Typical applications include picking, plating, brine and rinse tanks, piers and foundations, trenches and floors, waste treatment pits, cooling towers, dike liners and fume exhaust systems.
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