Many surprisingly difficult jobs are being done with disappearing presswork compounds (sometimes called “vanishing oils” or “evaporatives”). Such jobs include drawing, forming, punching, and perforating. Among the specific metals being worked are cold-rolled steel, aluminum, vinyl coated stock, pre-painted stock, galvanized steel and copper alloys.
Evaporation time for all disappearing fluids will depend upon environmental and mechanical factors such as plant temperature, humidity, air flow, and the heat of deformation, etc. The application can be very important and can often be adjusted so that parts come off the press dry. The use of an UNIST Uni-Roller system or Jet-Set Airless Spray system is recommended for controlled application.
There are two distinct families of Disappearing Compounds available. The TOWERDRAW series is hydrocarbon based and contains VOC’s. The Saf-T-Vanish® series does not contain hydrocarbons or VOC’s and is nonflammable. There are many products to select from in each series. The following table lists some of the most widely used products: