Brownells Formula 44/40 Instant Creme Cold Gun Bluing, 4 oz Pack of 12

The renowned, deep-penetrating, fast-acting cold blue is now available in a stay-put cream formulation, offering exceptional control for touch-up applications. The straightforward wipe-on, wipe-off method is highly effective on a wide range of steel types, delivering the solid black coloration necessary to match gun bluing. Surface preparation is both simple and efficient. This product is also invaluable for household and garage use; it can be applied to any steel surface where a blue finish is desired.