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Technical Removing Dykem from rust pits

Discussion in 'The Hokey Ass Message Board' started by M C Empson, Oct 7, 2025 at 12:16 PM.

  1. M C Empson
    Joined: Dec 3, 2023
    Posts: 12

    M C Empson
    Member

    Ok guys here's the situation I used Dykem to scribe for patch panels and door gaps wiped it off with acetone when finished da'd with 80 cleaned with wax and grease remover. Upon spraying self etching primer found that residual is bleeding through from tiny rust pits. Any advice on removing this or will epoxy primer seal it in. And before you tell me I can't put epoxy over self etch the paint manufacturer says you can with their recommend products.
    Thanks Mark
     
  2. Rich796
    Joined: Nov 18, 2023
    Posts: 61

    Rich796

    Spray/drench the surface with lacquer thinner or brake cleaner.
     
  3. 38bill
    Joined: Dec 20, 2019
    Posts: 177

    38bill
    Member
    from Minnesota

    I use denatured alcohol to remove Dykem.
     
  4. RodStRace
    Joined: Dec 7, 2007
    Posts: 8,396

    RodStRace
    Member

    Acetone usually does the job.
    I'd say in this particular case, it might require a different method. I'd lay a dry paper towel over it, wet the towel with the acetone, allowing it 'lift' the dykem up to the towel. This may take a few applications.
     
    Just Gary, Toms Dogs and lostone like this.
  5. MrMike
    Joined: May 21, 2010
    Posts: 146

    MrMike
    ALLIANCE MEMBER

    Dykem is an alcohol base, that should remove it.
     
  6. Sharpone
    Joined: Jul 25, 2022
    Posts: 2,745

    Sharpone
    Member

  7. gene-koning
    Joined: Oct 28, 2016
    Posts: 5,595

    gene-koning
    Member

    If the Dykem has soaked into the rust in the rust pits, maybe the only way to remove it may be to removed the rust pits. A spray or liquid cleaner will probably not remove the stained rust particles that are still attached to the steel.
     
  8. DDDenny
    Joined: Feb 6, 2015
    Posts: 22,089

    DDDenny
    Member
    from oregon

    Something like Rust Mort might work, used it on my bare metal projects for years.
    Must be neutralized with water and thoroughly dried.
    I have heard the new formula has changed a bit though so been stretching the last onces of it that I've had for a long time.
    upload_2025-10-7_15-57-48.png
     

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