Results 1 to 9 of 9

Thread: Surface rust

  1. #1
    Registered User mriz's Avatar
    Member ID
    CZCC-5894
    Join Date
    Feb 2004
    Location
    Connecticut
    Posts
    314

    Default Surface rust

    If the weather will allow I'll paint next weekend. I do have surface rust due to the amount of time it took to strip to bare metal. Can I just sand then prep or will this rust return to haunt me?

  2. #2
    Dangerously Undrmedicated blitzkraig's Avatar
    Member ID
    CZCC-3685
    Join Date
    Mar 2003
    Location
    Santa Cruz
    Posts
    227

    Default

    Get rid of all rust from the surface before you apply anything over the metal. It may take a while but the rust will break through eventually.

  3. #3
    Her Majesty the 26th 26th-Z's Avatar
    Member ID
    CZCC-4148
    Join Date
    May 2003
    Location
    Sarasota, Florida
    Age
    67
    Posts
    3,854

    Default

    Yes, just sand the surface rust off. You may want to prep with a phosphoric acid solution used to prep surface bare metal like OSPHO. Home Depot sells it as a paint prep for metal. Spray it on, let it sit for a moment, and wipe it off.
    Enjoy the Ride
    HLS30-00026
    HLS30-00027
    http://home.earthlink.net/~cwenzel/index.html
    Go Gators
    Go Butler Bulldogs

  4. #4
    Registered User mriz's Avatar
    Member ID
    CZCC-5894
    Join Date
    Feb 2004
    Location
    Connecticut
    Posts
    314

    Default

    Thanks guys, I hopefully wash and paint this weekend.

  5. #5
    beandip beandip's Avatar
    Member ID
    CZCC-1887
    Join Date
    Mar 2002
    Location
    Beaverton, Oregon
    Age
    81
    Posts
    4,038

    Default

    Are you planning on spraying epoxy primer first on the bare metal?
    I'd rather die while I am living than live while I am dieing. CZC 1887 IZCC 12602 Member of NorthWest Z Car Club

  6. #6
    Registered User mriz's Avatar
    Member ID
    CZCC-5894
    Join Date
    Feb 2004
    Location
    Connecticut
    Posts
    314

    Default

    Just got back from vacation, Yes I am using omni system mp170 epoxy then mp 282 high build, sand then basecoat/clear. Weather has not cooperated as of yet and gun wound up on backorder. Hopfully gun shows up by thursday and I can get started. Thanks for responses.

  7. #7
    Registered User
    Member ID
    CZCC-6097
    Join Date
    Mar 2004
    Posts
    50

    Default

    For the rust, try picking up Naval Jelly. It'll eat off the rust and give you a clean surface to work with. All you have to do after using Naval Jelly is give it a cleaning with a Wax and Grease remover, and some soap. Dry it off and shoot your primer. Worked great on my buddies 68 Stang. Good luck!
    HLS30 - 35515

  8. #8
    beandip beandip's Avatar
    Member ID
    CZCC-1887
    Join Date
    Mar 2002
    Location
    Beaverton, Oregon
    Age
    81
    Posts
    4,038

    Default

    MRIZ , this is the same stuff I am using . Good luck.
    I'd rather die while I am living than live while I am dieing. CZC 1887 IZCC 12602 Member of NorthWest Z Car Club

  9. #9
    Registered User
    Member ID
    CZCC-3609
    Join Date
    Feb 2003
    Location
    Clearwater,Florida USA
    Age
    75
    Posts
    4,424

    Default

    Hi Mriz:
    Is the "surface rust" coming through some type of primer you coated the bare metal with long ago? Or did you leave the metal bare to begin with?

    With bare metal you have two problems, "surface rust"... that you can easily see.. and "flash rust". Flash rust can not be so easily seen, it's in the microscopic pours of the bare metal. What you do with or about both types of rust, to an extent depends on how good a job you want to do - or need to do.

    "IF" you sprayed a very light coat of primer on the bare metal right after you sanded it or stripped down to it... Or "IF" you left the metal bare... and "AS LONG as it's actually just surface rust....

    I'd take a few course Scotch Brite pads, and scrub the area down with Ospho... the slight acid bath will remove any primer and surface rust - while the Ospho will prevent "flash rust" for several days.

    Just splash on the Ospho and scrub everything down (kind of like wet sanding, instead of water you're using Ospho).

    After you scrub it down to bare shinny metal, you need to let the Ospho work for at least 12 and better still 24 hours. That will convert any iron oxide (rust) into iron phosphate. Then just before you are ready to apply a good epoxy primer... you can wash the metal down with water (to get rid of any buildup from the Ospho), blow it dry (good and dry).. then spray on the primer.


    Works for me:-) and in most cases it's the easiest thing to do..
    regards,
    Carl

    Carl Beck
    Clearwater, FL USA
    http://ZHome.com

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

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
  •