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OWA
ASTM DB Login
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Glass tank panel edges and bolt holes always exhibit coating cracking off the panel, thus leaving exposed steel for rusting.
Our powder-coated tank’s panel edges as well as bolt holes are thoroughly powder coated which prevents any steel exposure. Our powder-coating wraps and builds on edges. Our powder-coating does not crack or chip on the edges, providing superior protection. Glass tank manufacturers claim stainless steel coating on panel edges prevents rusting, but stainless steel also rusts. And what about bolt holes? If glass coating on panel edges is good, then why the need for stainless coating? Stainless steel coatings rust. There is no stainless coating on bolt edges, which account for 40-50% of edges on a panel. Glass tank manways and base angles are not glass-coated. They are galvanized or liquid epoxy coated, thus exposing one of the most critical areas of a tank with only zinc as protection. Our powder-coated tank’s entire manway assembly and base angle are epoxy coated the same as panels which provides a uniform finish as well as superior protection. Glass coating tends to crack off the sheets during shipment, leaving containers and job site panels with exposed steel. Our powder-coating coating adheres completely to the entire panel (including edges) so shipment is not a problem and panels arrive at the jobsite in perfect condition. Glass-coated tanks can only handle water up to 140 degrees Fahrenheit. Above this temperature the glass dissolves. This is evidenced in glass-coated water heaters which must be replaced because the glass dissolved and the exposed steel corroded away. Our powder-coating has been tested to withstand at least 180 degrees Fahrenheit. Glass panels CANNOT be repaired in the field. The damaged panel must be replaced from the factory, creating tank service down-time. Our powder-coated panel can be repaired in the field with similar type coatings. Glass panels have Holiday “Leakers”, which are points of exposed steel on the panels that rust. This exposed steel can only be patched with sealant to slow down rust. Our powder-coated tanks have no “Leakers” from the factory. If a panel on the jobsite is scratched and creates a “Leaker” the panel can be repaired immediately with a factory provided coating touch-up kit. Our powder-coated tanks utilize equivalent nuts, bolts, and washers as glass tanks. |
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