Painting exhaust/ventilation pipe

Discussion in 'Painting Forum' started by ilyaz, May 23, 2015.

Help Support House Repair Talk by donating:

  1. May 23, 2015 #1

    ilyaz

    ilyaz

    ilyaz

    Well-Known Member

    Joined:
    Jun 19, 2009
    Messages:
    220
    Likes Received:
    17
    I have this pipe on my roof. I guess it's some sort of exhaust/ventilation pipe. As you can see it's (i) metal and (ii) rusty.

    What I want to do is (i) remove the rust and (ii) paint it

    Reasons for doing it is (i) aesthetics and (ii) I don't want the pipe to rust through and fall apart. Not sure whether it's likely in the next 5-10 year but since I live in a humid area I presume it might happen.

    Questions:
    1. What type of chemical should I use to remove the rust?
    2. What type of paint should I use?

    Thx!

    IMG_3653.jpg
     
  2. May 23, 2015 #2

    kok328

    kok328

    kok328

    Well-Known Member

    Joined:
    Nov 20, 2007
    Messages:
    2,859
    Likes Received:
    281
    That's galvanized sheet metal. I'd hit with a can of Rust-stop Spray paint.
     
    ilyaz likes this.
  3. May 23, 2015 #3

    ilyaz

    ilyaz

    ilyaz

    Well-Known Member

    Joined:
    Jun 19, 2009
    Messages:
    220
    Likes Received:
    17
    Without removing the rust first?
     
  4. May 23, 2015 #4

    oldognewtrick

    oldognewtrick

    oldognewtrick

    Administrator Staff Member Admin Moderator

    Joined:
    Jul 26, 2009
    Messages:
    11,249
    Likes Received:
    1,618
    Location:
    Nashville, TN
    Get a can of Rustoleum Rusty Metal primmer and a can of top coat, just follow the directions on the spray can.
     
    ilyaz likes this.
  5. May 23, 2015 #5

    kok328

    kok328

    kok328

    Well-Known Member

    Joined:
    Nov 20, 2007
    Messages:
    2,859
    Likes Received:
    281
    According to the manufacturer; no rust removal is necessary.
    Besides, from the looks of it, it's just surface rust.
     
  6. Jun 7, 2015 #6

    ilyaz

    ilyaz

    ilyaz

    Well-Known Member

    Joined:
    Jun 19, 2009
    Messages:
    220
    Likes Received:
    17
    Most Rust-Oleum products that I looked at said they were not supposed to be used on galvanized steel. I ended up buying a can of this.

    Used the whole can and the result was a nice matte gray/metallic finish. I'd say problem solved, although I do want to check for any reappearing rust in a few months.
     

Share This Page