be matte across the entire range of current densities. No brightness should be seen, except at very low current densities and a 0.5% PC-600 Carrier add should not greatly increase the brightness seen on the panels. If a matte hull cell is obtained, proceed to step 4. If not, filter the carbon out of the bath and repeat steps B1 and B2).
B4. Pump the treated plating solution through filters packed with diatomaceous earth and into the regular plating tank (filters rated at 3 micronsorless are rec