Tank liner/sealer

Hey guys. I was just wondering which is the best tank sealer to use? I've done a little research on a couple (redkote, caswell). My tank has rust despite all my efforts to clean with vinegar and shaking with nuts and bolts, etc. I'm still seeing rust in my fuel filter so I'm ready to try anything. Thanks for all the help again!

 

Caswell.

 

Thanks k-moe. That's the route I will go then.

 

They all work well. I have several coated with Red-Kote and they work fine. The key to a successful tank liner job is preparation.
Acid clean the rust, rinse and neutralize. Dry it well and dry it more then do it again. Final rinse with acetone and let dry again. You get the idea it has to be clean and dry before any tank liner goes in. The liner has to dry and cure for a week or two before gas is put in. Gas will dissolve uncured tank liner.

 

What type of acid is best and where can I get it?

 

If you buy a whole relining kit all of the chemicals you need will come in the kit. Some sellers will pacakge the prep kit and lining kit seperately.

 

Ok, sorry I'm bugging but where can I find the whole kit? I live in a very rural area and city trips are few and not much time to be searching from place to place so any info is a huge help

 

Order online and have it shipped to your door. I'm rural too and get almost everything that way. Caswells sells direct, as do most of the other tank liner companies.

 

Muriatic acid, every hardware store sells it. Pick up a quart of acetone while you are there.
Auto parts store sells tank liner. A quart is plenty for a motorcycle tank.
An old hair dryer is great for helping dry a tank. Get one that fits into the gas cap opening. Leave it on low heat to blow warm air through the tank.
****Remove everything from tank before putting acid in. Do it outside and wear long rubber gloves. Duct tape will seal tank openings like fuel level sensors and petcocks when acid rinsing. Remove tape and dry tank. put new tape on before applying sealer.
**** Careful with acetone it will eat paint off.

 

Thanks for the info! I will remove everything from the tank first. Not too worried about the paint, PO painted it a flat black so I'll probably go for new paint and cosmetics next winter. Thanks again!

 

Red coat works great 35$ OReilly

 

What about this? I had my tank brazed.. few pinholes....I asked for him to line it....he had a few issues so he didnt..first..there was an old liner in there and its failing...sheeting off...he was worried the new liner would have nothing to stick to...second...somebody cut my tank up Prolly due to rust... and put in a stainless steel bottom...he wasn't sure red kote would stick to it...thoughts? He sprayed as much of the liner out as he could....

 

Also it doesn't currently leak

 

MEK will eat away any liner there is, and liner removal is something that has become quite common since older liner materials were not suitable for ethanol blened fuels (I'm not sure if Red Kote has become ethanol comparable, but it used to not be). Coatings will stick to stainless (particulary epoxy liners like Caswells and POR-15, both of which are ethanol compatable). Whether or not to line a leak-free tank is your call, but you will need to get all of the old liner out before you do. Regardless of your choice, you will need to use an inline fuel filter to keep any crap from getting into your carbs.

 

If your tank ain't leaking maybe you should just strip it and not coat it? I mean who knows what kind of shit they'll be putting in gas 5-10 years down the road.