fuel tank sealant

[supertech]

After reading some posts about fuel tank sealant I thought it might be a good idea for my tank(66 triumph) which has a rusty bottom but does not leak at all. I phoned quite a few jobbers and no one carries it any more. They say in cold climates, the 'Kreem' flakes all up, plugs everything and makes it near impossible to clean out. I just wondered if anyone on this forum had any bad luck like that with it? Maybe you all live in warmer climes? Maybe you never see the tank again? Actually, no one here even sells the stuff and I've talked to a couple of radiator shops who said they wouldn't have it on the premises. Everyone recommends Red Coat and It's super caustic, dangerous, and all the rest of the usual rhetoric, so a license is needed to aquire it in Canada. Of course no-one will sell me a quart. I'll take all the feedback I can get on this!

[5thcorps]

I've sealed fuel tanks in the past with roll on bed liner material. No leaks after several years.....

[lucas]

I USED KREEM ON MY 72 HONDA BIKE ABOUT 15 YEARS AGO AND ITS STILL GOOD. KY HAS SOME PRETTY COLD WINTERS,BUT I DO KEEP MY TANK FULL AND TREATED,I DONT KNOW IF TAHT HAS ANYTHING TO DO WITH IT THOUGH.I HAVENT HEARD OF THE PROBLEM WITH THE KREEM .IT IS QUITE A PROCESS AND I WOULDNT SKIMP ON THE TIME IT TAKES FOR EACH PROCESS OF RELINING THE TANK. LUCAS

[38racing]

After reading some posts about fuel tank sealant I thought it might be a good idea for my tank(66 triumph) which has a rusty bottom but does not leak at all. I phoned quite a few jobbers and no one carries it any more. They say in cold climates, the 'Kreem' flakes all up, plugs everything and makes it near impossible to clean out. I just wondered if anyone on this forum had any bad luck like that with it? Maybe you all live in warmer climes? Maybe you never see the tank again? Actually, no one here even sells the stuff and I've talked to a couple of radiator shops who said they wouldn't have it on the premises. Everyone recommends Red Coat and It's super caustic, dangerous, and all the rest of the usual rhetoric, so a license is needed to aquire it in Canada. Of course no-one will sell me a quart. I'll take all the feedback I can get on this!

everything is getting hard to get in Canada. Can't even get roundup to kill your weeds in Ontario now. going to need a permit to F.a.r.T soon.

[mojeeper]

Hi guy's, The best stuff i have used is kbs coatings , I have restored several cars and old hot rods with there products. the aqua clean also works on stuborn tecumseh carbs with the stuck needle. takes about 10 min. of soak time. http://www.kbs-coatings.com PS. they have a reseller in canada.

[daniel]

I've had tanks sealed with Kreem for over 20 years and absolutely no problems. Never even heard of Kreem flaking. If it did flake, it's likely directions weren't followed & there was still rust in the tank when the Kreem was applied.

[airkuld]

I used Kreem years ago and had it peel away after a couple of years. I then tried POR15 which has held up fine. The Kreem was used in the mid 1990s. I won't argue that the surface may not have been prepped as well as it could have been. The flaking Kreem, however, was soft and pulled apart. I suspected at the time that the new rfg fuels had a lot to do with it.

[supertech]

Well--I've been on a few auto restore forums and I've got really good advice about most things from this guy who says:

"Some years ago I used to work as a mechanic in an independent motorcycle shop. Made a whole lot of money just cleaning out gas tank sealants that were flaking off and plugging up carburetors and fuel filters. Kreem was the worse and the most common.
Personally, I don't recommend gas tank sealers under any conditions. A full tank of gas keeps the rust away. All gas tanks come new with flash rusting on the surfaces, and nothing more comes of it. Flash rust is quite stable and nothing to worry about.
If a tank is in such bad shape that it's pinholing and leaking, I'd rather replace it than line it.
And lastly there is the ethanol issue. Ethanol disolves a fair number of the lining materials, giving you a nice goo that gets into the fuel filter and carburetor(s).

If you want to clean your tank to a sparkly clean, get some vinegar and dump it in there and let it sit for 2-3 days. Admire the sparkly clean surface. Then rinse it, watch it flash rust, install it and fill it with gasoline."

I think I'll be following his advice. Clean it,let it rust a bit and put it back.
Thanx for the input guys.