I have recently purchased a Paughco 822cs 4.2 gallon Tank. I haven't even fitted it to the frame to check if it's true yet. I havce read mixed reviews about lining it with a plastic product.
To me the Tank Liner sounds like one of those things that could be a benefit but if it's not done properly, could cause real problems too. I'm thinking once it's done it's way more difficult to undo. Trying to decide if I should just use it without liner and if I decide it's needed it can be done later or, just do it now.
Another decision is, if I get the Liner now. Should I have a Radiator Shop do it so if it goes bad I can have them fix it?

http://www.visitedstatesmap.com/imag...ORTXVAWAsm.jpg

 

I have done several new custom tanks with a product called Por-15 and have had no problems for years. There a cleaner that comes with the kit that etches the inside of the tank and allows the Por-15 to bond to the metal. As long as you follow the instructions you will have no problems. Visit there web site for more info.

 

I was recommended the POR-15 by local shop. They use it all the time with great success.

 

POR-15 or RedKote. Avoid Kreem like the plague.

Best way=no tank liner, just keep it full of fuel when storing the bike.

 

Used Kreem once.................NEVER again.

 

What does the gas tank manufacturer recommend is the answer to your question.

 

plus 1.
My 36 year old Honda has no liner, keep gas in it looks good.
my 23 year old sportster has no liner. still good


my 14 year old bigdog had a liner, junked up clogged, took a week to get it out .

 

I was reading about this on chopcult and seems like the consensus (my read) was the new gas formula worked best (or only reliable solution) with a 2 part epoxy liner. The product mention was Caswell. All the others, expecially kreeme had some failures. Caswell was 100% endorsed. Also prep was less critical.

Some reference was made that a gas tank could be made from a well lined cardboard box using Caswell!

My own take away was, if Caswell is this effective, might as well wait for a leak then use it.

Best practice when building a bike for resale is probably different than when restoring for personal use. AND, Some of the Asian import tanks have a reputation where Caswell lining seems wise from the get go.

 

I've used Kreem in two sets of tanks over the last 13 yrs. The first set the kreem started coming off inside in sheets. Thought maybe i didn't do it right. Had to buy new tanks because once in it's impossible to remove it all. Kreem'd the new second set of tanks. After 8-9 yrs the kreem turned to like a glue substance. Clogged up everything. I now have third set of tanks no kreem just keep them filled with gas so they don't rust inside. I'll never use Kreem again!

 

Personally no liner sounds like the best way to go after doing a little research myself. What I really want to see is how that tank looks mocked up on your bike! Post up some pictures!