Another process for subsurface printing in anodised aluminum. Using a silk screening process the ink is deposited into the metal and the metal is sealed afterwards. Available in .020โ, .032โ and .063โ thicknesses (other thicknesses may be specially ordered). Permanent process plates can be machined and fabricated. It is an excellent choice for medium to large volumes or where solid colours other than black are required. Used in interior applications Permanent Process has outstanding protection against chemicals, solvents, salt and degreasers.