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MISSION STATEMENT | HOME | ![]() |
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PRIMARY APPLICATIONS T.C. 772 is a liquid acidic compound designed for removing light grease, oils, shop dirt, flux, rust, oxides and heat scale. It is also used for preparing metals for paint and for cleaning and conditioning aluminum prior to surface conversion processing. Another application, recommended by stainless steel manufacturers, is the use of T.C. 772 for cleaning stainless steel, removing direct and embedded soils and permitting uniform repassivation. T.C. 772 meets the following United States Government Specifications: TT-C-490, Method VI; MIL-C-490A, Grade II, Type 5; MIL-M-10578B, Type I and MIL-C-46487 (Type II Finish). CHEMICAL CHARACTERISTICS
APPLICATION PROCEDURE By tank - Use at 5% to 25% by volume at 140° to 160°F followed by rinsing and drying. For wipe-on methods - Use at 10% to 50% by volume at room temperature. Apply with rags or brushes. Allow to soak for 2 to 10 minutes. Rinse and wipe dry. NOTES ON USE Normal precautions for handling acid and solvent-type materials should be observed in using T.C. 772. Tanks for T.C. 772 may be made of ceramic, wood, acid-proof brick, Karbate or stainless steels 304 ELC, 316 ELC or 347. Do not use lead or monel equipment, linings of rubber or the "brush-on" protective types. Heating coils should be of impervious carbon or graphite, such as Karbate Nos. 12 or 22 and Norcordal, or stainless steels 304 ELC, 316 ELC or 347. T.C. 772 will attack ordinary steel tanks. In food plants, the use of T.C. 772 is limited to maintenance work and operations other than in the food processing areas. Dilute solutions of T.C. 772 may tend to become turbid when heated but will regain clarity upon cooling. This turbidity does not in any way alter the working qualities of the product. DISPOSAL If required by local regulations, neutralize to a pH of 8 - 9 with soda ash or available spent alkaline solutions. Allow settling and siphoning off liquid, or pour slowly into sewer while diluting with water. Discard sludge. PACKAGING T.C. 772 is packaged in non-returnable containers as follows:
SHIPMENT May be shipped by any common carrier. Freight classification is "Cleaning Compound, NOIBN, Liquid". STORAGE While freezing will not affect T.C. 772, for convenience of use it is advisable to store indoors or in moderate temperatures.
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