Removing Heavy Rust from a Cast Iron Drain Insert

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by DanMcD, Oct 9, 2012.

  1. DanMcD

    DanMcD New Member

    Messages:
    121
    Location:
    Dayton, OH
    I have a Cast Iron Drain Insert in my laundry room floor drain that has heavy rust on it.

    It is removable and it is a heavy cast part that is still very solid except it has a lot of rust and dirt on it.

    I would like to clean off the rust then paint or coat it so it looks nice.

    Any suggestions on how best to remove the rust and what to use to paint or coat it would be much appreciated. I have read about using Phosphoric acid, but I'm not sure if that is the best method nor do I know what % of acid to use.
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,018
    Location:
    Cave Creek, Arizona
    There is probably NOTHING that will "remove" rust from cast iron, except a chisel or wire brush wheel. It will probably never "look nice", but it may look better, even though it will be pitted. Paint it with any spray paint.
Similar Threads: Removing Heavy
Forum Title Date
Plumbing Forum, Professional & DIY Advice Removing the water supply line on a kitchen sink Sunday at 6:24 PM
Plumbing Forum, Professional & DIY Advice Removing soldered water pressure regulator? Sunday at 12:48 PM
Plumbing Forum, Professional & DIY Advice Tip for removing scratches/discoloration from toilet bowl Nov 8, 2014
Plumbing Forum, Professional & DIY Advice Removing a 3" Stack vent - Replacing with 4 - 1 1/2" vents????? Oct 17, 2014
Plumbing Forum, Professional & DIY Advice Removing Moen tub spout Oct 16, 2014

Share This Page