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paint prep after sandblasting?

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by roostr3269, Dec 30, 2001.

  1. roostr3269

    roostr3269 1/2 ton status

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    I am just about done sandblasting the frame on the jimmy, but not really sure what is next step. I am referring to cleaning dust from frame to make sure i get a good base coat, any tips would be appreciated, thanx.

    live to wheel, wheel to live--1972 gmc jimmy 8 inch lift, 37" ssr's
     
  2. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Blow the dust off.
    Clean all bare surfaces with lacquer thinner.
    Spray on "metal etching primer", which you can get from paint shops or Eastwood.
    Use a good paint like black epoxy paint. Its tough, durable and will last a long time.


    I'm not picking my nose...I'm just pointing at my brain!! [​IMG]

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  3. blazin72

    blazin72 1/2 ton status

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    After you blow it off, and you wipe it down with thinner or duponts 3901 metel cleaner or even 3812, you might wipe it with a metel prep, before the primer,
    But like K30 said use a etcheing primer, like DP-50 It sticks awesome.
    Then you can use a polyureathane paint like IMRON its the most durable out there.
    Or there is por-15 if you want to go that route.
    Good luck


    Blazin 72
    1972 K5 350 vortec, 4 inch lift, with nothing else important.
     
  4. roostr3269

    roostr3269 1/2 ton status

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    Thanx a lot guys, I am not too experienced in this area, and its starting to show as the jimmy buildup has slowed to a crawl, LOL, later.

    live to wheel, wheel to live--1972 gmc jimmy 8 inch lift, 37" ssr's
     
  5. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Here's a procedure taken directly from the "How To Restore Your Chevrolet Pickup" book....

    "For short term rust protection, and to ensure good paint adhesion, wash freshly sandblasted parts with metal prep - a dilute phosphoric acid solution........apply with an old paintbrush or rag.......douse the part liberally and let tthe solution run into the seams and crevices. When the chemical dries, the treated metal will be a dull gray color.

    If long term storage is planned, prime the metal with a NONLACQUER-BASED primer."


    Hope that helps. Thank Santa Claus.....he brought me the book! [​IMG]



    -Greg72

    '72 K5 Blazer - 427BB/TH350/NP205/6" Lift/35x12.50's
    <font color=blue>See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38</a>
     
  6. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Right. And avoid any lacquer paint, too. Lacquer ABSORBS water.



    I'm not picking my nose...I'm just pointing at my brain!! [​IMG]

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
     
  7. chevyracing

    chevyracing 1/2 ton status

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    and don't forget NOT to breathe the imron paint fumes if you go that way, it will put you in the graveyard.

    John

    Like to go sloppin' 'round in da mud in a rapid fashion....=)

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