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To paint the indicator needles, place a small piece of paper between the gauge face and the needle. The needles can then be hand- or spray-painted using Plasti-Kote No. B27 orange glow enamel (A). If the white lines on your gauge need to be touched up, use a fineline brush and carefully do so. The black is just Krylon semiflat spray paint. With the face of the gauges painted, clean the threads on the back using a Scotch-Brite pad and be sure all contact points on the circuit board are also cleaned (B).