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Thread: How to: Paint car parts

  1. #1

    Default How to: Paint car parts

    Hi,
    A few things to mention first.

    I am not a professional painter in any way or form
    I take no responsibility for any damage by following this guide
    I've made this guide based on my backyard experience

    Now lets get started

    How to paint stuff in your back yard!!!

    Today we will be painting a Duck's Garden roof spoiler in my very own back yard!!


    This is a new part so I won't be covering how to bog, fill or beat the crap out of something with your hammer to make it straight


    EQUIPMENT
    Sandpaper
    Prepsol
    Bucket of water
    Rags to clean and dry
    Primer
    Paint Colour
    Clear Coat
    (If you use enamel paint make sure all your cans are enamel based, if you use acrylic make sure all your cans are acrylic. Try to stick to the same brand paints so that you reduce the chances of getting a paint reaction).

    PREPARATION
    First of all, sand the surface with 800 grit sandpaper to give the paint something to stick on
    Anything less than 800 is ok but may compromise the finish of your product. It may be too rough and show visible sanding lines later
    Anything more than 800 is like newspaper and won't allow the paint to stick
    Use plenty of water when you're sanding
    Rinse off when finished and clean with prepsol before painting

    Next lightly DUST your panel with the primer. Then wait as per spray can recommendations on drying time before adding a proper coat

    The left side shows how i lightly dusted the primer on
    The right side shows how the spray paint is sprayed on dry (sprayed it on for light coverage but does not look wet)

    Spray paint in overlapping layers
    Repeat dry coverage for the whole panel. Wait to dry. Repeat dry coverage for whole panel again for 2-3 coats

    Your panel may have gaps and look like this

    This is from an uneven finish from the material it is made
    Other imperfections may include but is not limited to:
    Runs from your painting
    You touching it when it was still wet!

    So it looks like this


    That's ok, just wait for it all to dry
    This can happen to any paint layer
    What you do is: sand it back to try to make it level (won't be smooth, will still have holes - but were trying to make the surface "appear" level when roughly looking over it)
    Then spray on primer to fill up the gaps, and then sand the surrounding areas so the gaps (which now have primer in it) can now rise up and be level
    If it's the colour layer you do the same thing but with colour paint


    Now your uneven surfaces should look like this



    COLOUR
    Now apply paint like how you did with the primer
    Dust on a light coat for it to stick
    Then paint on dry coats for 2-3 layers

    Should look like this


    CLEAR COAT
    Now you're ready for clear coat
    Do the same dusting paint layer
    Now this paint needs to go on wet
    Don't spray on dry because it will eventually look the way you sprayed it on
    So spray it on wet in overlapping layers like this



    Do overlapping layers until you cover the part
    Repeat for 2-3 coats

    End product should look like this


    Now let it sit in the sun to dry
    Things to be careful about when awaiting for it to dry in your backyard:
    Mosquitoes coming to try get a bite of your part
    Fly's coming to bug the shit out of you and land on the spoiler
    The wind being so strong that it flips your spoiler over and onto the grass so you can grow a tree on your part
    A bird flying past and landing a shit onto your part

    If any of these things happen, you can try to pick it off (if possible) - but this will damage the finish from your fat fingers.
    Or you can sand it back to which ever layer it seeps through and repeat the painting process for that layer - eg if it sticks and you pick it off and you peel off all your paint to the primer layer, you'll have to try to level everything. So you'll sand the area to make it appear level (use plenty of water, rinse off then prepsol before painting), spray on paint to fill up the area which is damaged, sand out the surrounding areas to level the area, reapply paint to the whole panel to blend it in, reapply clear coat.
    Alternatively, give up and hand it into a panel beater to paint.

    Stick on your panel and enjoy!!

    Last edited by 6mps; 04-02-2013 at 09:41 PM.

  2. #2
    Join Date
    Jul 2011
    Location
    Perth
    Posts
    566

    Default

    Loving that window spoiler, and the new rims looks mint as well, very very tidy

  3. #3
    Join Date
    Aug 2010
    Location
    Surrey Hills, Victoria
    Age
    49
    Posts
    5,866

    Default Re: How to: Paint car parts

    Nice write up

    Sent from my Galaxy Nexus using Tapatalk 2

  4. #4

    Default

    Awesome mate liking the little things you're doing looks good

  5. #5

    Default How to: Paint car parts

    You bastard!! Where did you get the roof spoiler from? I've been after that for years

    Edit: nice job btw

  6. #6

  7. #7
    Join Date
    Apr 2012
    Location
    Adelaide
    Age
    32
    Posts
    657

    Default

    if you're worried about wind and bugs, you should spray it either in a shed, or mock up something with hooks so you can spray the paint on and then carry it to an indoors place where it'll have less chance of getting dirt and other contaminants on it while it's drying

  8. Default

    That DG spoiler looks good. Not sure it's worth $270+post however.

  9. Default

    I'm keen to do my side skirts with this method. In the guide it suggests acrylic or enamel. Can anyone fill me in on which to use on my black mps?


    Sent from my iPhone using Tapatalk

  10. #10

    Default

    You can paint one over the other,i'm not sure if it's arcylic over enamel/or enamel over acrylic, should call a paint shop and ask.

    But try to stick to the same type (either buy all acrylic or buy all enamel) and brand of paint when you're painting to ensure more consistency.
    Some brands and paints don't like each other and can react.
    Last edited by 6mps; 07-05-2013 at 08:11 AM.

  11. #11
    Join Date
    Apr 2012
    Location
    Adelaide
    Age
    32
    Posts
    657

    Default

    do what most instructions tell you to do on car care products and "test on an inconspicuous area first" with both acrylic and enamel and decide which one works best, or if you have a spare part lying around you can practice with, use that instead of doing it on the project piece

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