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Ted Mooney, P.E. RET
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for Metal Finishing 1989-2025
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Stainless Steel Preparation for Painting
We are going to be powder coating a stainless steel part which will be used on boats and subjected to saltwater and to fuel. We are going to use a zinc rich epoxy primer and a TGIC polyester topcoat, but I am unsure as to the best approach on preparing the stainless steel.Any help would be appreciated.
Melanie Rogers- Orlando Florida US
2000
My Dear Melanie;
You want to do what to the stainless steel? It sounds almost sacrilegious to be powder coating stainless. If it's corrosion protection you are seeking I would recommend you consider electropolishing. You will suffer no problems with delamination and it will provide you with both an aesthetic and durable finish.
Joel Levinsohn
- Sydney, Australia
2000
Sir:
We have had excellent results on S.S. for under ocean applications by blasting to a N.A.C.E. #1 -white metal blast and applying a single heavy coat (3 mils) of your top coat. If U.V. stability isn't essential, definitely use an epoxy pc.
- Carpinteria, California, USA
2001
Generally stainless steel only needs to be cleaned before painting. Specific treatments are not required but can be used.
Ron Zeemancontinuous coating - Brampton, Ontario, Canada
2002
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