Paint a translucent plastic tank?

Discussion in 'Motorized Bicycle Welding, Fabrication and Paintin' started by wheelbender6, Oct 27, 2011.

  1. wheelbender6

    wheelbender6 Active Member

    Joined:
    Sep 4, 2008
    Messages:
    3,826
    Likes Received:
    12
    Most of the friction mounted engines come with the somewhat see-thru plastic fuel tank. Can that tank be painted successfully? I would leave some of the tank unpainted for obvious reasons but would like to paint most of it.
     
  2. GearNut

    GearNut Active Member

    Joined:
    Aug 19, 2009
    Messages:
    5,105
    Likes Received:
    3
    I suppose you could try Krylon Fusion paint for plastics, but I don't know how well it would hold up to fuel.
    Engine enamel does hold up to fuel well, but I don't know how well it sticks to plastic.
     
  3. CTripps

    CTripps Active Member

    Joined:
    Aug 22, 2011
    Messages:
    1,311
    Likes Received:
    0
    What if you used the Krylon, and then use an engine paint clearcoat or topcoat?
     
  4. MotoMagz

    MotoMagz Active Member

    Joined:
    Aug 2, 2010
    Messages:
    1,275
    Likes Received:
    4
    Wipe the tank down with thinner...apply Rustoleum plastic primer(light coat) and then a top coat of Rustoleum engine paint.Give it a try on the bottom of the tank first.
     
  5. thegnu

    thegnu New Member

    Joined:
    Sep 15, 2011
    Messages:
    982
    Likes Received:
    0
    Heres the truth about attempting to paint that tank you have , it is made of a high temp high silicone base plastic , in my buisness we have seen this type of plastic many times in my paint shop an it does not accept primer or paint very well at all. ( even with the best adhesion promoters an primers).
    Gary
     
  6. Barnfresh

    Barnfresh Member

    Joined:
    Sep 5, 2011
    Messages:
    191
    Likes Received:
    1
    You could always dye it another color with regular ol rit dye........
     
  7. Barnfresh

    Barnfresh Member

    Joined:
    Sep 5, 2011
    Messages:
    191
    Likes Received:
    1
    Or Plasti Dip it. Just tape off the part you want to use as a level gauge first.
     
  8. Venice Motor Bikes

    Venice Motor Bikes Custom Builder / Dealer/Los Angeles

    Joined:
    Mar 20, 2008
    Messages:
    6,228
    Likes Received:
    32
    How about hobby model paint for RC cars?? That paint lasts thought high speed crashes & spilled nitro fuel! ;)
     
  9. foundmydog

    foundmydog New Member

    Joined:
    Oct 17, 2011
    Messages:
    258
    Likes Received:
    0

    I have tried almost every paint under the sun and they will peel or drip right off with the first drop of gas on it

    Plastic coating may work, but could be a few extra dollars
     
  10. curtisfox

    curtisfox Well-Known Member

    Joined:
    Dec 29, 2008
    Messages:
    4,226
    Likes Received:
    82
    I don't know how good it is but I just read in the new trucking magazine the PlastiKote has plastic bond primer.....................Curt
     
  11. cannonball2

    cannonball2 Active Member

    Joined:
    Oct 28, 2010
    Messages:
    3,556
    Likes Received:
    22
    I dont know if the plastics are similar, but we paint the plastic canopies that come in the R/C heli kits. They are commonly referred to as bleach bottle canopies because that what the material looks like. You can sand it, prime it with what ever you like and it probably wont stay on. The trick to making paint stay is to "flash" the plastic with a propane torch. As you move the torch over the plastic you can see solvents wave off of it. Once that is done it will hold paint well even through a crash. This process works on corroplast too. I have heard it some how crosslinks the surface, but dont really know. All the said you might not want to do a gas tank that has been used, might get a real flash!
     
  12. curtisfox

    curtisfox Well-Known Member

    Joined:
    Dec 29, 2008
    Messages:
    4,226
    Likes Received:
    82
    A full tank will never blow even with gas in it but use water. I know a lod welder that used to weld tanker trucks full of gas and never blew.............Curt
     
  13. UriDead

    UriDead New Member

    Joined:
    Nov 21, 2011
    Messages:
    83
    Likes Received:
    0
    #13 UriDead, Nov 30, 2011
    Last edited: Nov 30, 2011

Share This Page