1. Husqvarna Motorcycles Made In Sweden - About 1988 and older

'85 White Plastic Tank - How do you get it white again?

Discussion in 'Vintage/Left Kickers' started by Husky37, Oct 26, 2009.

  1. Husky37 Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    84 CR500, 85 CR500, 89 TE 610
    I am currently breathing new life into my '85 500CR which was dismantled some +15 years ago....

    I know I can get hold of some new plastics, front/rear mud guard, air box but not the tank.

    Mine has gone off-white and looks grubby.

    What can I do to restore the tank to it's former glory.

    Thanks
  2. ruwfo Administrator

    Location:
    NJ
    Husqvarna Motorcycle:
    1980 390CR, 1982 430CR, 1984 400WR
    Other Motorcycles:
    1985 250XC, 2016 FJ-09
    seal it from inside

    I read sealing the tank from the inside is the only to keep tank from
    discoloring, the gas cause the plastic to turn brown. Then i'd guess
    repainting , there's a guy on Ebay selling restored tank - plastic too,
    try emailing him.

    Or go to a body shop who do alot of Corvette repairs,they should
    know what type of flexible additive needed to be added to paint.

    Or put universal number plate decals (white) over the flat sides of the tank, I made a pattern tracing the outline of the tank, then transfered it
    to the decal sheet, peel & stick.

    They stay good for about a year before they start to bubble. Maybe longer if you were to drain the tank when you weren't using the
    bike.

    Here's my old 86 400wr with it done, still looks good after a few years,
    when i took this pic.

    John

    Attached Files:

  3. Husky37 Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    84 CR500, 85 CR500, 89 TE 610
    Hi John,

    Many thanks for the suggestions.

    I'll try and find the guy on ebay but if you have his address to hand that would be of great help.

    I will definitely explore the 'sticker' route as this will allow for 'tidying up' during the rest of it's working life with little fuss...

    As far as the paint goes I think it's the same additive that they put in to colour match plastic bumpers.

    I think the only models this effected was 84,85,86?

    KR

    Stu
  4. frog Husqvarna
    AA Class

    Location:
    MN
    There's a guy on E-bay that seals the inside and paints the tanks,works good. I have a YZ tank with this process,you don't have to worry about tank decals bubbling after the process also.Also try Joe Abbates cycle therapy web site, he paints tanks and I think does the same process.Thank
  5. Husky37 Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    84 CR500, 85 CR500, 89 TE 610
    Hi Frog,

    Thanks for the info.

    I might have a problem location wise as I am in the UK. If I can't get the process sorted here then I might have to think about buying a spare tank state side, getting it refurbished and then shipping it back home... that would be the last resort though.

    KR

    Stu
  6. frog Husqvarna
    AA Class

    Location:
    MN
    I'm sure Joe could handle that for you. The stuff they line the plastic tanks with in called Tanker-Rite, it's from Italy I think. If you can get that stuff,I'm sure any UK body shop could do the process for you and save a tone of $$$$$. The Tanker-Rite product makes a tank within the tank.Here's my YZ tank.

    Attached Files:

  7. Husky37 Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    84 CR500, 85 CR500, 89 TE 610
    Hi Frog,

    I haven't been able to find any reference to Tanker-Rite however whilst searching I did come up with a UK Company that does a similar process.

    Will have a conversation with them tomorrow. Will keep you posted for future reference.

    KR

    Stu
  8. Husky37 Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    84 CR500, 85 CR500, 89 TE 610
    BTW: Very nice Yam tank...
  9. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
  10. Husky37 Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    84 CR500, 85 CR500, 89 TE 610
    Hi Motosportz,

    Thanks for that info. Both of those listed have people in the UK so thanks for that.

    It seems that the way to go is to seal the tank then have it painted as I haven't seen a method yet of being able to restore the existing plastic to it's former white condition.

    Not sure when I can get this done but I'll be sure to post before and after pics.

    KR

    Stu
  11. Skoalman Husqvarna
    AA Class

    Location:
    maryland
    Husqvarna Motorcycle:
    82 & 83 HUS 430WR
    Other Motorcycles:
    Maico, Penton, KTM, DKW, Rokon, BUL
  12. Husky37 Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    84 CR500, 85 CR500, 89 TE 610
    Hi Skoalman,

    I did try some fine steel wool on the shock guard but didn't do much. I will revisit the suggestion though.

    Thanks

    KR

    Stu
  13. Skoalman Husqvarna
    AA Class

    Location:
    maryland
    Husqvarna Motorcycle:
    82 & 83 HUS 430WR
    Other Motorcycles:
    Maico, Penton, KTM, DKW, Rokon, BUL
    Stu use a little ajax/bleach...then buff that sucker out with some type of plastic polish...then slap on some fresh decals...I know it won't be perfect...but it'll be better...
  14. Husky37 Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    84 CR500, 85 CR500, 89 TE 610
    Hi Skoalman,

    I'll try that over next couple of days and report back.

    KR

    Stu
  15. ruwfo Administrator

    Location:
    NJ
    Husqvarna Motorcycle:
    1980 390CR, 1982 430CR, 1984 400WR
    Other Motorcycles:
    1985 250XC, 2016 FJ-09
    use #4 steel wool

    You need to buy hardware store (commerical grade) #4 steel wool, it's
    real rough, takes a thin layer (micro) of plastic off. But it really doesn't
    get the whitest back on the gas tanks as well as fender.

    I've restored a bunch of husky plastic using steel wool, forget the plastic polish til you almost done. Be prepared to make a big mess :eek:
    though, as there's a lot of dust, you be covered in it in minutes,
    even doing it by hand like i do it.

    John

    Attached Files:

  16. luvwoods Husqvarna
    AA Class

    Location:
    Zoar, Ohio
    What plastic are tanks made from? The Caswell product says it will not adhere to polyethylene. I thought tanks/fenders/panels were made from this??? Anyone know?
  17. Husky37 Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    84 CR500, 85 CR500, 89 TE 610
    Thanks John... looks like I have to get dirty.....

    Might try a bit of everyone's suggestions and report back....

    KR

    Stu
  18. Skoalman Husqvarna
    AA Class

    Location:
    maryland
    Husqvarna Motorcycle:
    82 & 83 HUS 430WR
    Other Motorcycles:
    Maico, Penton, KTM, DKW, Rokon, BUL
    I actually got the steel wool technique on another Husky website from John (rufwo)...I saw how well his technique worked on fenders and thought hmmm, I'm going to give it a try too...good stuff!
  19. wrx Husqvarna
    Pro Class

    Location:
    845 newyork
    Husqvarna Motorcycle:
    1973 to 1986 husky's various models
    Other Motorcycles:
    RM -250 / Buell / Penton 400 mc5
    I've used a razor blade and plastic polish on my 1985 250cr with great results. you gotta have patience, it takes the yellow right off. also draining the tank after use works wonders. fuel leaches through over time and stains the plastic. it also removed a lot of the small scratches where my knees/ knee braces contact the tank.
  20. Joe Chod Husqvarna
    Pro Class

    Location:
    upstate NY
    tank must be sealed or all your work is for naught. It is the octane that does it. Now that cold weather is here and before you seal it, fill tank with bleach and let sit for a while. The browning is literally from the inside to the out....worse inside. the buffing alone only works so well as opposed to ther parts as they have surface discoloration. The tanks have it through and through. After letting it soak in bleach for a couple weeks, try the #4 steel wool. I have dne i with a plishing mandrel. by hand will kill you!

    if it looks acceptable, then seal it.
    It will repeat if not sealed and stickers will bubble very rapidly.

    Joe