Customs: Sanding or primer?

Discussion in 'Creative General Discussion' started by bellpeppers, Jul 9, 2011.

  1. bellpeppers

    bellpeppers A Meat Popsicle

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    I have a re-paint job in mind, but paint ads so much thickness I'd hate to prime it first.

    Has anyone had any luck simply sanding the old paint down?
     
  2. Satomiblood

    Satomiblood Prototype Black

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    Priming is the best way to go for the new paint job to adhere. Spray down very light coats in short spurts and make sure to do it from a distance of 10-12 inches. If you do this, the primer shouldn't have a thick appearance.

    As for rub issues, that's always inevitable whenever moving parts that make contact with each other are concerned. You can reduce the rubbing by light sanding, dying, or leaving those areas unpainted altogether.
     
  3. Superquad7

    Superquad7 We're only human. Super Mod

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    I've wet-sanded things in the past with a fine grit piece of sandpaper and haven't had a problem.
     
  4. gambit020480

    gambit020480 Banned

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    I never sand my customs and i never have problem with paint appication. I just mod the figure top my liking and paint over the colors the figure was before I started. not real sure why others think sanding is necessary, but whatever works for you!

    I can tell you something that I learned recently about brush painting. To eliminate lines from forming while briushing make sure you use a big brush for large areas and a small brush for small areas. I justed finished a Springer custom with new brushes and it looks fantastic!
     
  5. Satomiblood

    Satomiblood Prototype Black

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    Also, if you prime a figure correctly, brush painting will go on a lot smoother.
     
  6. gambit020480

    gambit020480 Banned

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    Never tried it. My first two had line problems on the door panels. I aplied multiple coats to my 1st one (Cliffjumper) and it turned out ok. My second (Ricochet) has them too, but I just got some new brushes Friday and used them to paint my 3rd custom (Springer), and his panels looks smooth and nice. Its all in the brush!!
     
  7. Satomiblood

    Satomiblood Prototype Black

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    Use Krylon Camo primer. It comes in black, sand, khaki, brown, green, and olive. It's really durable, goes on smooth, and brush painting looks a lot better. You can find spray cans of this stuff at Walmart.

    [​IMG]
     
  8. Superquad7

    Superquad7 We're only human. Super Mod

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    Basically, the issue is priming, not sanding per se. Priming a piece allows paint to have more of a tooth to adhere to for application. Sanding is a priming process as well as using a primer coat of paint.
     
  9. bellpeppers

    bellpeppers A Meat Popsicle

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    Why wet sanding?
     
  10. Superquad7

    Superquad7 We're only human. Super Mod

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    Wet-sanding doesn't do as much damage to either plastic or paint. Also, it allows for a bit more smoothness to the actual sanding.
     
  11. bellpeppers

    bellpeppers A Meat Popsicle

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    Now you lost me- don't I want to damage the paint by smoothing it or removing it for a new paint job?
     
  12. Satomiblood

    Satomiblood Prototype Black

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    Basically, wet sanding is less abrasive than regular sanding. It gets the job done without leaving permanent scratches or dents in the plastic.
     
  13. deliciouspeter

    deliciouspeter Back in Black TFW2005 Supporter

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    Sanding is scratching, that's the nature of the beast, but if you do it correctly, and evenly, the scratches eventually blend into an evenly rough surface. That's tricky though, especially with a toy, which is a complex surface, with lots of

    Depending on what you are working on, I'd give it a shot without sanding. You really shouldn't be adding significant thickness with paint.

    Primer can be used to neutralize a bold base color, but you will still follow the same principle as your paint.

    If you are spraypainting, the key is many many many very very very thin coats. Don't think of spraypaint as liquid, but as particles. 10-12 inches away, with even passes, not starting or stopping on the target. If you are airbrushing...well then you probably aren't asking this question, nevermind.

    If you are brushing, load your brush with just enough paint to have a smooth coat, but not enough to collect or drip. Finding the right amount comes with experience, as well as using the right paint/brushes/solvent.

    Holy crap that got long. Good luck!
     
  14. Satomiblood

    Satomiblood Prototype Black

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    DP speaks the truth.

    OP, I suggest practicing on a junker or cheap KO.
     
  15. Superquad7

    Superquad7 We're only human. Super Mod

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    Great answers gang!
     

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