Author Topic: Petrol Tank Sealant?  (Read 64 times)

Offline XS850

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Petrol Tank Sealant?
« on: May 03, 2026, 07:10:35 PM »
Hi All

Coming towards the end of my CB400f rebuild and time to look at the petrol tank - scabby in places with small rust spots coming through the paint (Light Ruby Red). So, stripped all the paint off plus an enormous amount of surface filler only to find a hardened “black” coloured skin (epoxy?) over the whole surface - looks to me like tank lining but on the outside! Anyone come across this before?
I suspect if I remove it I’ll find lots of pinholes - it wasn’t leaking before but to me it’s been “bodged” so reluctant to leave as is!
Anyone got an early CB400F (75) going spare - colour & paint condition irrelevant
Cheers - Bruce