Possible Leak

Is that a rust spot/hole or just the paint lifting

 

Por Patch 15 putty. Then a bit of paint and polish. Simple.

 

It is. I've done it myself this year.
Your area is small and largely hidden. If you mess it up you can redo it in a morning.

 

POR 15 is not Ethanol proof evidently - have a read here, different substrate but good info... there will be products available

https://www.ducatiforum.co.uk/threads/carbon-fibre-fuel-tank-repairs.73702/

 

Yes it is. Its maybe one of the only products that is.

https://www.frost.co.uk/por-15-por-...zTWvrOTnO0tVfxpVKktfgmHDqOULSUYhoClisQAvD_BwE

 

Also if you are worried about matching the paint/ finish call one of the stone chip guys to do the painting. I think you will be fine though.

 

You really don't want to go down the road of a mild steel patch repair / paint job as that will be expensive so a metal filler is the first port of call as nothing to lose at this stage.

 

Cool, the other thread said not

 

I hope it is an isolated area and a small one but you won't know until you investigate Anthony, it's worth looking at other side and all of rear section next to seat for similar or past repairs even. The putty sounds good and if Jez has tried it/is happy with it then worth a try. If the holes are no larger than 3mm diameter and if you are a dab hand at soldering I would highly recommend this route also as can last for years depending on where bike/tank stored etc. Would p.m. with fuller details as a bit lengthy.

 

I've done this too earlier this year, great product then lined the tank with their tank sealer. I used mild acid to get the rust away first, and it revealed pinholes. I've used their tank sealer on 3 SS tanks

 

Ffs dont try to weld it

 

Whatever you do, don't attempt anything unless you are in at least 65F or warmer place.

 

None of the fillers, spray filler/ spray paint / clear coat will work worth a damn below that.