STAINLESS STEEL POLISH
STAINLESS
STEEL POLISH is blend of acids and organic inhibitors that
will produce a bright, passivated surface on 300 series
stainless steel, and a semi-bright finish on 200 and 400
series alloys. Because STAILNESS STEEL POLISH only removes
iron from the surface, high tolerance, uniform finishes are
achieved. Additionally, descaling of numerous other nickel
alloys with STAINLESS STEEL POLISH is possible by simple
immersion. STAINLESS STEEL POLISH is a viable replacement
for DS-9 for chemical milling purposes.
STAINLESS STEEL POLISH is run at 100% concentration and
temperatures between 170 to
l75oF. The
amount of metal removed from the surface is dependant on
the part remains in solution, but typical cycles range from
1 to 15 minutes. Agitiation with rocking or rotaion of the
barrel or the use of eductors is required.
Parts should be sufficiently cleaned using an alkaline
cleaning product such as CLEANER ADDITIVE #4 to ensure that
organic contaminants are removed. Otherwise, uneven
processing may lead to unsatisfactory results.
Tanks should be polyethylene, polypropylene, Teflon® or
polyester bonded fiberglass. Heaters should be quartz,
Teflon® coated, or pure titanium.
Good ventilation of the operating area is required for the
safety of operators and to prevent damage to facility and
equipment. A minimum rate of 250 cubic feet per minute
should be maintained and vent exhaust system should have
scrubbers for nitrous oxide.
In engineering your process, keep in mind that temperature
is critical, but that too high a ratio of surface area to
solution will cause the solution to overheat and etching to
occur. Some means of cooling the solution may be necessary
depending on the length of operating cycle. It is
absolutely critical that there be good solution movement
across the part surface and that nesting does not occur, as
this will lead to an irregular finish. Also, to prevent
staining and powdery deposits, rinsing in RO or deionized
water is required, followed by thorough heated drying.
