配方类型:

METALS

配方说明:

Vat Etching of Aluminum Lithographic Plates

配方组成:

配制方法:

Immerse plates in cold 6% solution of caustic potash for 2 minutes.
Rinse in cold water. Immerse in 1.5% solution of sodium carbonate at 188'F for 12 minutes. Rinse in cold water. Dip into mixture of 1 part glacial acetic acid and 35 parts of water for a few seconds. Rinnse in cold water, while brushing off the sludge, and dry.