Preparing To Seal A Tank

Discussion in 'Technical Help' started by johnny, Sep 4, 2017.

  1. I am about to Kreem Complete Petrol/Gas Fuel Sealer Kit Including Prep Solutions & Sealant on my ST4S tank.

    Instructions say make sealing plates either end out of metal and rubber. I can just about manage this on the base but the filler is going to take too much precision with the tools I have.

    I saw another site mention making bungs out of news paper and plastic bags. Can this work. Comments welcome
     
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  3. Not used this particular sealant , but you just need to stop the coating escaping as you rotate the tank
    So think rubber gloves rather than paper and you should be fine
     
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  4. Looks very similar to POR15 which means if you get any of the fluids on a painted surface, the paint will lift. I used a Duct tape wrapped plastic lid off a large sweet jar to seal where the pump fitted and a Duct tape wrapped old shampoo bottle for the petrol cap hole. Don't forget to block the breather holes as well. I would also suggest that you mask the paint around both openings. I drained the lining paint through the drain plug so had to run a tap through to clean the thread. I would also leave the lining paint at least 5 days to cure before introducing petrol. It's not a difficult job if you prepare and handle the fluids meticulously. My track tank was done 2 or 3 years ago after I stressed a joint and I have not had a problem since. Andy
     
    #4 Android853sp, Sep 4, 2017
    Last edited: Sep 5, 2017
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  5. Many thanks to you both. I was also looking at the lab type rubber tapered bungs as an option.

    However, a guy on the US forum made a good point.

    My tank does not actually leak. it is just a little rusty at the top and nothing too bad at that. Am I going with overkill here?
     
    #5 johnny, Sep 5, 2017
    Last edited: Sep 5, 2017
  6. The rubber bungs are a good job,I got mine of eBay ,
    Citric acid crystals clean the tank like new,
     
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  7. If rust has started to appear, the likelyhood of the original protective coating on the steel deteriorating is high so probably not. Consider it preventative maintenance. Andy
     
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