On the final wash stations of a modern automotive paint shop, conveyor chains, spray nozzles, and robotic arms accumulate a stubborn mix of overspray, adhesive residues, and phosphate sludge. These deposits harden into a crust that clogs atomizing heads, skews spray patterns, and shortens the life of high-precision applicators. The alkaline cleaning powder is metered directly into the recirculation tanks of the pre-treatment and final rinse zones. As the solution circulates, it dissolves the baked-on layers without attacking the anodized aluminum or stainless-steel surfaces of the spray booth infrastructure. Operators run a ten-minute soak cycle at the end of each shift, followed by a high-pressure rinse; the powder’s surfactants lift the loosened contaminants into suspension, preventing re-deposition on freshly cleaned car bodies. By keeping the spray nozzles and chain guides free of fouling, the powder ensures consistent film build and color match across every vehicle that passes through the line, while also reducing unplanned stoppages for manual scrubbing. In adjacent press shops, the same powder is used in immersion baths to degrease deep-drawn panels before welding, where its low-foaming formula prevents pump cavitation in the large-capacity tanks.