gas tank sealing

Here is a link directly to their web sight.
www.hirschauto.com/products.asp?dept=4

Like T_Dub stated, I did mine over three years ago with POR-15 and no problems at all. Even around the filler neck is perfect, nothing chipped off from the gas filler at all. I wouldn't use anything but POR-15.

The process itself takes a bit of time, but is well worth it. Don't rush it and follow the instructions to a tee. Also, if you have a nice paint job make sure its well covered. If it dries on the paint its not coming off. Doesn't come off your hands for quite a while either...don't ask how I know

There have been a few that have had problems with POR-15. It depends what additives your area uses in the gas. Every area is different. I have had some problems with POR-15 in the past where the silver will not cure out completely. It varies from batch to batch with them. They have POR consistency of product quality. I have been using their products for about 20 years now on and off and this is what I have found.

Guys

Just wanted to throw this out there. I recently purchased the "Heavy Duty Motorcycle Tank Sealer Kit" from these Por guys, (who should change their name to POOR) this is the third one I have purchased and used, but the first on a tank that was previously sealed, which was why I went with the 'heavy duty' one. It DOES NOT work for #@^#@ on removing the old sealer, it left me with a gummy mess, and worse than that, the canadian distributor has not gotten back to me after I have sent him two long complaint emails, askling, what now?? My tank was poorly sealed before, but now its full of gummy shite that i cant get out.

Any suggestions? experiences? I wouldnt suggest these a-holes if customer service means anything to you, the company is called Stevens Auto Electric and MAchine Ltd. in Grimsby, Ontario. If you were ever going to buy anything from them, may I suggest supporting your fellow rider instead and spend your money elsewhere!!

xc

I don't know what was the first sealer used, but if it was a two part epoxy like KREEM than burning it out is the only way to remove it. ALL other sealers can be removed with MEK "Methyl Ethyl Ketone". Acetone also works but nor quite as well. There are a few POR-15 products that are decent but MANY are SHITE. Anything with a silver pigment belongs in that latter category. There are certain gas additives that will dissolve it and the last thing I want going threw my engine is powdered Aluminum mixed with Titanium Oxide. Not to mention the Urethane GUE.

I used the 3 part Kreem kit, not a lick of problems...
Cleaned out the rust, acid wash prep and sealer...
No issues what so ever to date...

Here in AZ, they use the corn ethanol in the winters otherwise 91 octane...

OMR

Otakar,

is this the kit for bikes you are suggesting? Its not a bad price and i like that it can be reused.

www.hirschauto.com/prodinfo.asp?number=CRK-01

Whatever product you decide upon, be sure to follow the instructions to a T, and make absolutely sure the tank is clean & free of heavy/loose rust before applying the liner. I'd wager that many kit failures are the result of an error in the preparation or application.

I lined my tank w the Kreem kit a looong time ago, 20 yrs perhaps, and it's still intact. The rust wasn't that bad though, and in hindsight the liner probably wasn't necessary. Prior to using the kit, I rinsed the tank thorughly w MEK; I also put some nuts or something in there to bounce around.

Someone on the Kawasakimotorcycle.org site used the KBS Coatings Cycle Tank Sealer . The KBS site seems to have a lot of info, including a help forum & videos. They also sell a liner removal kit.

galaxian wrote:

Otakar,

is this the kit for bikes you are suggesting? Its not a bad price and i like that it can be reused.

www.hirschauto.com/prodinfo.asp?number=CRK-01

Yes that is the kit. The pro radiator/gas tank shops use this stuff around here. They sawer by it and I have it in 5 tanks.

At one time Harley started to coat their tanks with a sealer. They were talked into or found out about POR-15 They started to use it in new tanks and started having catastrophic results. They had to warranty repair an extremely large amount of the bikes that came out with tanks sealed with POR-15. They than switched to the Hirsch product and all the problems went away. Since than they stopped sealing their tanks altogether. The Hirsch product is a Propylene Butyrate product which has an indefinite shelf life and can be removed if ever required and has an FAA rating. It is one of very few products that I know of that the unused portion need not be thrown away and can be used over and over I think if you do a web search about the product you will not find negative press about the product anywhere, unlike the other products. I believe that most of these products will work as advertised if the instructions are followed and great care is taken during application. I think that is the biggest problems with these products, User Error and NOT FOLLOWING THE INSTRUCTIONS TO THE LETTER. I guess the question is; Which one is the most forgiving and Idiot proof.

otakar,

as usuall you make so much sense, i appreciate your input.
I will be ordering it this week.

I have written about this several times but no one seems to listen. I guarantee that if you try it, you will never worry about your tank again. Very little prep work to do because it encapsulates the rust, cuts off the oxygen supply so that it doesn't continue to rust and it seals pinholes! I have several tanks, some done over ten years ago, including one Jeep pickup tank that are still perfect.

West System epoxy. Any brand would do, but I happened to have some already. No polyester resin, though it might work, but I haven't tried it.