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AQUEPOXY 250 HD HEAVY DUTY WATERBORNE EPOXY COATING SYSTEMS DESCRIPTION: AQUEPOXY 250 HD is a two-component, waterborne epoxy coating system designed for heavy commercial and industrial applications. It is particularly useful for applications over damp concrete surfaces, steel, galvanized metal, ceramic glazes, aged previously applied alkyd and epoxy enamels, asphalt, aluminum and plywood. Two grades are available: HD (Immersion Grade) and 250-S30 (Sealer). 250-S30 Sealer grade (Clear) is supplied in a 1:4 mixing ratio, and is useful for a wide range of commercial and industrial applications. HD Immersion grade (Clear or Pigmented) may be used for surfaces subject to heavy traffic, prolonged or continuous submersion,and harsh chemical exposures. It is supplied in a 1:2 mixing ratio. AQUEPOXY 250 offers high gloss, hardness and chemical resistance, making it a truly practical alternative to solvent-borne epoxies in heavy commercial and industrial applications. Both the clear and white base formulations are USDA accepted for use on incidental food contact surfaces such as floors and machinery in Federally inspected meat and poultry packing plants. FEATURES:
CHEMICAL RESISTANCE: (12 weeks Submersion at 730F)
Sea Water: No Effect 10% NaOH: No Effect Xylene: No Effect 10% H2SO4: Slight Blistering APPLICATION: 1. SURFACE PREPARATION: Apply AQUEPOXY 250 to clean, damp or drysubstrates, free of grease, oil, dirt, or any othermaterial which may hinder penetration. Removeany such contaminants by an appropriate procedure such as abrasive or chemical cleaning.Chemical washing, if selected, should only beperformed using cleaning agents which leave noresidues or excess acid or alkali following finalrinsing. For many applications, Edison SYSTEM 21cleaner/degreaser may be considered. Previouscoatings should be tested for compatibility prior tolarge scale application. 2. COMPATIBILITY TESTING: Clean a small, inconspicuous section of sound,existing coating and apply a small test patch. Allow to cure for at least 24 hours, and then cut a seriesof cross-cuts using a razor. Place a strip ofcellophane tape across the cut intersection and rubdown firmly for maximum adhesion. Quickly peelthe tape back, at a sharp angle, and observe boththe back of the tape and the coating. If any coatingbeyond that which was directly cut by the bladeadheres to the tape or peels away from thesubstrate, adhesion is inadequate and more aggressive preparation is required, such as sanding,solvent-wiping or abrasive removal. 3. MIXING: Pour the contents of Part-A Resin and Part-B Hardener into a clean mixing container and mix forat least three minutes using a slow speed drillmixer (250 rpm) and a flat paddle. Carefully scrapesides and bottom of container while mixing, andavoid whipping air into the mixture. In pigmentedformulas, it may be necessary to agitate Part Aprior to mixing, making certain that all pigments aredislodged from the container walls and bottom.Whenever possible, mix complete units. If necessary, partial units may be used, but it is essentialthat components be measured carefully and consistently. After mixing, allow the mixture to "stand"for several minutes and then re-stir. 4. APPLICATION: Product may be applied to dry or damp surfaces,but not over saturated surfaces or standing water.On some surfaces, product may spread and flowmore evenly if slightly thinned using Thinner #251or a small quantity of water (no more than 6ounces per gallon). Alternatively, porous surfaces may be dampened slightly with water to reducesuction. Apply evenly and moderately at 100 - 200 sq. ft.per gallon, using brush, roller, or low-pressure airless spray. Do not attempt to re-work areas which have partially set. Any material which hasnot been applied within 1 hour of initial mixingshould be set aside, allowed to harden, and thendisposed of in accordance with local regulations.Some applications will require only one coat. Asecond coat may be applied at any time after thefirst coat has cured to a "tack-free" state, preferably within 96 hours of first coat application. Ifre-coat is delayed beyond 96 hours, light sandingor solvent wiping may be required. 5. CURING: CAUTION!: KEEP FROM FREEZING. Do notapply at temperatures below 45F or when temperatures will drop below 45F within 24 hours. Donot apply under extreme high humidity, such thatcondensation may form on uncured product. Product, substrate and air temperatures must all be considered when working at conditions close tothese limits. At 75F, product is ready for lighttraffic in 8-12 hours, moderate traffic in 18 -24 hours. Full cure is nominally 5-7 days. Do not submerge for at least 5 - 7 days. HANDLING & SAFETY: May cause eye injury, skin irritation, sensitizationand allergic responses. Consult Material SafetyData Sheets supplied with this product for appropriate handling procedures and protective equipment.Clean up oversprays and equipment immediatelyusing hot water and mild detergent or Thinner#251. For further information, contact your Edison Coatings Technical Representative. |
