Mark per NLE-CR-01 (our proprietary process)
This process is similar to a stain mark in that it leaves a dark (charcoal gray to dark brown) marking with no appreciable texture to the surface. However, Biomerics NLE’s corrosion resistant process has been specially designed to resist the formation of rust on or around the marking. This marking is generally less glossy and black than a Type 1 stain mark. This process is used extensively on medical instruments made of 300 series, as well as 17-4 and 17-7 stainless steels. Process times are longer than for Type 1 stain marks.