petrol tank sealer anyone used them ?

[orangefzr]

Just wondering if anyone has used any petrol tank sealers and could recommend one for my resto tank ?
The tank is pretty solid but has a lot of surface rust on the inside
As always any recommendations appreciated

[Moulder]

I have just ordered the Por 15 kit for a tank in a similar state. If you can hang on for a week happy to let you know how it goes.

[Biker's Nemesis]

I used this on an Aluminum tank for my track bike last year after it was welded and leaked like a sieve.

Takes a while but as the saying goes. "does what it says on the tin".


https://www.ebay.co.uk/i/391912951135?chn=ps&d...

[Mr2Mike]

My brother just used the Caswell sealing kit on his plastic Aprilia tank, since they seem to have the best rep for holding up to ethanol.

[crofty1984]

Mr2Mike said:

My brother just used the Caswell sealing kit on his plastic Aprilia tank, since they seem to have the best rep for holding up to ethanol.

The seam was getting leaky on my BSA so I've just used the POR15 kit. I'll let you know how it goes. Seems simple enough but when they say CORROSIVE-WEAR RUBBER GLOVES they mean it! Guess how I found that out?

[orangefzr]

Moulder said:

I have just ordered the Por 15 kit for a tank in a similar state. If you can hang on for a week happy to let you know how it goes.

That sounds good.... The biggest problem for this tank is I had it bead blasted and the bloke didn't do what I asked him and he blasted the filler neck, so I think I'll have to tape up the outside of the filler opening and treat the opening where the cap sits ....
Tank is off an x7 and are pretty hard to get one that's not rotten

[orangefzr]

Biker's Nemesis said:

I used this on an Aluminum tank for my track bike last year after it was welded and leaked like a sieve.

Takes a while but as the saying goes. "does what it says on the tin".


https://www.ebay.co.uk/i/391912951135?chn=ps&d...

That stuff must be pretty good then actually bridging holes

[orangefzr]

crofty1984 said:

The seam was getting leaky on my BSA so I've just used the POR15 kit. I'll let you know how it goes. Seems simple enough but when they say CORROSIVE-WEAR RUBBER GLOVES they mean it! Guess how I found that out?

That sounds like me super gluing my finger to my indicator yesterday..... Ha

Yeah if you could report back please it is appreciated.... When the bike is finished the only fuel it will get is super as most super doesn't have ethanol, but apparently there are some now with the dreaded stuff

Thanks everyone for the replies btw

Edited by orangefzr on Saturday 7th April 20:54

Edited by orangefzr on Saturday 7th April 20:55

[crofty1984]

Will do. Though I have to build a new loom first before the tank goes back on so a final leak/didn't leak may not be immediate.

From what I did it was fairly easy. Worst part was flushing the tank with water and no hose. A BSA oil in frame petrol tank holds slightly more than that crabbing bucket from under the stairs and the Mrs' watering can.

[Chewykneeslider]

I've used a variety of different sealers, some seem OK, and others less good. Petseal seems to fall off and degrade after a while, and the POR15 stuff works, but only if you follow all the instructions to the letter and use it as part of the 3 stage process of Marine clean, de rust and then sealant. My Ducati tank has been absolutely fine for a long time with the POR liner in place.

I recently tried this method out:-

http://www.realclassic.co.uk/techfiles/petrol_tank...

Providing your tank is sound and you have caught it before the pinholes appear, then this is cheap and easy to do. You could use this process to clean the tank out and then follow up with a sealant for a good yet cheap result.