A durable, pigmented, high gloss lead and chromate free cellulose nitrate lacquer for spray or brush application. It has good exterior durability and gloss. MIL-L-7178A aircraft coating features a “HAPS” free, low VOC, formulation that conforms to air pollution regulations. This lacquer is specifically formulated as an aircraft finishing coating. The clear may be aluminized (12 ounces of TT-P-320D Aluminum Paste per gallon of clear) to obtain an excellent aluminum lacquer.
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SURFACE PREPARATION
Surface must be clean, dry and free of all contamination before application of gloss lacquer. Prime per specification requirements.
STEEL: Surface must be clean and free of all oil, grease and foreign material. Badly rusted or pitted steel should be cleaned by commercial sandblasting and primed the same day.
APPLICATION & REDUCTION
MIL-L-7178 should only be applied by spray application due to its fast dry properties. Thin up to one pint per gallon with MIL-T-81772B Type III Thinner, or as needed for proper atomization with spray equipment. Spray one tack coat followed by one full wet coat being sure to keep a “wet edge” for maximum gloss finish. The use of MIL-C-8514C and TT-P-1757B Primers or other recommended lacquer resistant primers are normally required for use under this lacquer topcoat.
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