Tank Issues

Hi All. Am after a bit of advice about my Sprint Tank. Its been laid up for a while. Dug her out over xmas and have noticed some bubbling on various parts of the tank (see images).
Just wondering what could be causing them. What remedies are required. is it a new tank jobby.

mnay thansk kris

 

Yeah, plastic tank. Can i get the tank rbubbed down and repainted or is it a new tank. Is there any urgency or can it wait. Sorry for all teh questions but never experienced this before.

 

Thanks for the advice. I will live with if for now and look at getting it sorted soon.
Many thanks kris

 

Following with interest. what causes the blisters in the first place? is just the fuel vaping off through the plastic??

 

You need to seal the tank on the inside or the bubbles will return, also dont leave it off the bike for long or it will expand and wont fit back in the frame.

https://www.google.com/search?client=firefox-b-d&q=triumph+sealing+plastic+tanks

 

Agree with Sprinter here. I’ve got a spare tank for my Daytona and I’m going to seal it with Flowliner then get it repainted, when I eventually get round to it

 

https://www.triumphrat.net/threads/help-sealing-a-plastic-gas-tank.941150/

 

There you go then, it’s obviously deformed over time from new.