(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 9 of 9

Thread: Porcelain surface eaten up in bathtub...

Hybrid View

  1. #1
    DIY Senior Member k9mlxj's Avatar
    Join Date
    Jan 2011
    Location
    Bay Area CA
    Posts
    100

    Default Porcelain/Enamel surface eaten up in bathtub...

    Hi there,

    I have a good old cast iron tub. Recently I notice there is a trail of the porcelain/enamel surface eaten up -- perhaps by chemical?


    It's right below the tub shower door.

    I think that trail line goes 1/16" under the rest of the tub surface.


    Name:  Bathtub Porcelain surface 1.jpg
Views: 539
Size:  20.5 KB


    The surface at the bottom of the tub is pretty rough already--probably from harsh cleaners roughing up the surface over the years.


    This trail however is quite obvious. I wonder how to repair this surface section (repair that lasts) so it's flush again w/ rest of the surface or not noticeable again.


    Or it is too eaten up to be fixed? Time to get a new bathtub?


    Thx... .

    PS: Actually, is this an enamel or porcelain surface?
    Last edited by k9mlxj; 10-12-2011 at 07:29 PM.

  2. #2
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,602

    Default

    It is a "fused" porcelain enamel. The ONLY good repair is one done by a professional refinisher, usually found in the Yellow Pages under "Plumbing fixture repairs" or "Fiberglass repair" (even though yours is cast iron". An Internet search for "Todd's fiberglass repair" in AZ MIGHT put you in touch with a similar company in your area.
    Licensed residential and commercial plumber

  3. #3
    DIY Senior Member k9mlxj's Avatar
    Join Date
    Jan 2011
    Location
    Bay Area CA
    Posts
    100

    Default

    Thx hj.

    Are you suggesting to refinish the whole tub's surface? Or just spot treat that problem?

    (Have no idea what companies normally offer)


    If it's refinishing whole tub, I wonder what the cost would be -- compared to a replacement of the tub.

    In particular, how long would it last (practically speaking... )?


    I am actually redoing the tile area above the tub now, so the tile areas are relatively open at this moment. So if the refinishing cost is similar or not a lot less than bath tub replacement, I might want to go the replacement route.

    As I wonder how long a refinishing (whole tub) would last (good 14+ years?)... . Heard about unpleasant stories of refinishing jobs,


    so wonder if anyone knows which kind of refinishing product/paint material would be more reliable/long lasting, like acrylic resins/urethane/polyurethane based materials, etc.


    Thx.
    Last edited by k9mlxj; 10-13-2011 at 12:18 PM.

  4. #4
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    Location
    New England
    Posts
    21,374

    Default

    A refinish job is highly unlikely to last anywhere near as long as the original factory finish. Now, there are places that can take the tub and replicate the original finish, but that is generally reserved for some archtecturally correct restoration and involves bead blasting the surface removing the finish, then applying a new one including firing it in a furnace. The epoxy finishes can last awhile, but the quality depends entirely on the skill and materials used by the craftsman.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  5. #5
    In the Trades Gary Swart's Avatar
    Join Date
    Sep 2004
    Location
    Yakima WA
    Posts
    7,244

    Default

    I've never had this problem, so this is just my impression of what seems to me to be something to consider. If you desire to salvage the old tub, you will have to remove it and take it to the repair facility. Removing a cast iron tub is never easy, and often is only done by demolishing the tub. But, assuming you could get it out of the bathroom in one piece and back in when the job was completed, This would not be an inexpensive job especially if done right by a real professional. I would wonder if it might not be a better plan to replace the tub with a new one. Just an opinion that is not based on solid data.

  6. #6
    DIY Senior Member k9mlxj's Avatar
    Join Date
    Jan 2011
    Location
    Bay Area CA
    Posts
    100

    Default

    Given the understanding that refinishing isn't going to last as long as real porcelain prepared in the furnace,

    is perhaps 10 years of life expectancy for a refinished surface practically possible (assuming no harsh chemicals/abuse)? Or that's still too much to expect?
    Last edited by k9mlxj; 10-14-2011 at 01:27 AM.

Similar Threads

  1. Porcelain, Fiberglass, and Acylic bathtub repair problems.
    By THE STEVIGN COMPANY in forum Shower & bathtub Forum & Blog
    Replies: 3
    Last Post: 08-12-2008, 06:40 PM
  2. Trouble with porcelain
    By Big Red in forum Remodel Forum & Blog
    Replies: 1
    Last Post: 12-16-2007, 04:02 PM
  3. Is anyone familiar with Swanstone solid surface walls for bathtub/shower walls?
    By bjferri in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 6
    Last Post: 08-25-2007, 09:36 AM
  4. Porcelain Sink Repair
    By greg beck in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 1
    Last Post: 12-27-2005, 08:04 PM
  5. Porcelain is eroding
    By anectine in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 5
    Last Post: 11-18-2004, 02:08 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •