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Thread: Stainless Steel Sink & Oxidation / Rust?

  1. #11
    Drew Wiley
    Join Date
    Sep 2008
    Location
    SF Bay area, CA
    Posts
    14,137

    Re: Stainless Steel Sink & Oxidation / Rust?

    There are many types of stainless steel. The kind involved in this instance might not have been truly weldable in the sense of no change in quality happening during that step, which means only welded seams got affected chemically. Or perhaps there was a do-it-yourself repair error involving another metal. Just rough it up a bit it down with a brown Scotchbrite pad and apply marine expoxy putty or moisture-cure marine caulking (7 to 10 dollars a tube - don't be fooled by something cheap). Metallic-color Silicone is OK but might need to be replaced after a few years. The so-called stainless sinks sold at home centers will sometimes rust within twenty minutes where ketchup or lemon juice is present. True lab-grade stainless for sinks is typically 316L.

  2. #12

    Join Date
    Feb 2013
    Posts
    258

    Re: Stainless Steel Sink & Oxidation / Rust?

    A really good hardware store will have stainless steel wool-try that on the sink. If you can find it-ask Drew who carries it.

  3. #13

    Join Date
    Feb 2013
    Posts
    258

    Re: Stainless Steel Sink & Oxidation / Rust?

    Have you thought about disconnecting the sink and hauling it to a body shop to get the dents hammered out?

  4. #14
    Photographer
    Join Date
    Feb 2001
    Location
    Pine Junction, CO
    Posts
    836

    Re: Stainless Steel Sink & Oxidation / Rust?

    Quote Originally Posted by MrFujicaman View Post
    Have you thought about disconnecting the sink and hauling it to a body shop to get the dents hammered out?
    A good thought. It would bother me eternally to live with a badly wrinkled sink like you’ve got. Worth a small investment now for a lifetime of darkroom esthetics.
    Keith Pitman

  5. #15

    Join Date
    Aug 2004
    Location
    NYC
    Posts
    311

    Re: Stainless Steel Sink & Oxidation / Rust?

    there are many types of stainless steel. a magnet will not stick to true ss. also true stainless steel has to be silver soldered (a different type of weld material) not conventionally welded unless its a feric type of ss. the rust is the weld material, most types of ss are rust resistant.

    https://hardhatengineer.com/types-st...-steel-piping/

  6. #16

    Join Date
    Dec 2015
    Location
    Northern Vancouver Island, B.C. Canada
    Posts
    23

    Re: Stainless Steel Sink & Oxidation / Rust?

    Bon Ami and Vim work well on shining up SS. C clamps and 3/4 plywood boards on both sides and gently tightening should remove the dents. Comet and SOS pads will address the rust for now but it may return if the sink is not solid SS. Photographic grade is type 316, Restaurant grade is type 314 Highly corrosive environments employ type 4029 L. Either way it still is a beautiful sink. Pad the corners if it is possible to walk into it in total darkness.

  7. #17

    Join Date
    Sep 2007
    Location
    Charlotte, NC
    Posts
    108

    Re: Stainless Steel Sink & Oxidation / Rust?

    Four aughts, 0000, steel wool will will work, and is used by gun owners to remove traces of rust with out damaging fine blueing.

    Since these contain oil for a anti-rust agent, Pinch as small a piece with you gloved hand, the 'splinter of this wire are no fun to mess with, and .9 mil Harbor Freight rubber/plastic gloves will work, and just worry away the rusted site.

    Don't touch the packing or mother wad of steel wool with wet hands or gloves and keep that in your darkroom, if this is a reoccurring issue, in a tight glass jar, with some silicone packs, to adsorb any rust causing dampness.

    A regular size Home Store Package of steel wool will last you a long time this way.

    IMO.

  8. #18

    Join Date
    Sep 2007
    Location
    Charlotte, NC
    Posts
    108

    Re: Stainless Steel Sink & Oxidation / Rust?

    Four aught, 0000, steel wool will work, and is used by gun owners to remove traces of rust with out damaging fine blueing.

    Since these contain oil for a anti-rust agent, use a touch of Dawn dish detergent to clean away afterwards.

    Pinch a small piece with you gloved hand, the 'splinters' of this wire are no fun to mess with, (.9 mil Harbor Freight rubber/plastic gloves will work) and just worry away the rusted site.

    Don't touch the packing or mother wad of steel wool with wet hands or gloves and keep that in your darkroom, if this is a reoccurring issue, in a tight glass jar, with some silicone packs, to adsorb any rust causing dampness.

    A regular size Home Store Package of steel wool will last you a long time this way.

    IMO.

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