corrosion in fuel tank

while doing the resto on my 56 beetle had the fuel tank sitting around.Even though it was sealed, After painting it and removing the coke bottle bottom i had duct taped around filler neck I noticed bits of surface rust forming around inside. Anyone know of what i can do about this?

apply rust converter n se if you get any holes then it will require a bigger repair

no holes definetly thin layer of surface rust

I've seen in a UK magazine 'Practical Classics' they use stuff called a slosh coat for the insides of fuel tanks (obviously you pour it in and slosh it about😎). If anyone on this site knows of this stuff or a brand name it would be very handy

You could also fill up the tank with some nuts n bolts and a little kero or petrol

then slosh shake it around to remove the surface wash n flush out to remove any rust particles

vw54 wrote:You could also fill up the tank with some nuts n bolts and a little kero or petrol

then slosh shake it around to remove the surface wash n flush out to remove any rust particles

i did this with my tank. Worked quite well. You can also just use some chain. Anything that will scrap off the surface rust flakey bits.