Tank Sealant

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Glyn.G
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Tank Sealant

Post by Glyn.G »

Hi,
I know I've seen a thread on the use of POR 15 sealant before but I can't seem to find it again, so I was wondering what method is used. After the cleaning process do I just pour in the sealant and slosh it around.
Any advice will be much appreciated.
Regards,
Glyn.
GTandcbr
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Re: Tank Sealant

Post by GTandcbr »

http://www.por15.com/POR-15-Fuel-Tank-R ... _p_62.html" onclick="window.open(this.href);return false; there you go.
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Glyn.G
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Re: Tank Sealant

Post by Glyn.G »

Cheers for the info,
I'll get some ordered.
Regards,
Glyn.
rngdng
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Re: Tank Sealant

Post by rngdng »

I've used POR-15 several times with great success. The last one I did, I tried Caswell's sealer which is actually easier, but I can't say whether or not it's better as yet. POR-15 works; that I can say.



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Re: Tank Sealant

Post by Warehouse1001 »

Never used POR-15, but can attest to the Caswell products durability. Especially with ethanol.
Eddie
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Re: Tank Sealant

Post by Eddie »

I sealed the gt750's tank with caswell and its been at least 5 or 6 years now and it always has gas in it,,,not one problem so far and I hope I don't jinx myself by saying that........also its way easier to use than anything I have used and it dries clear. This is just my experience with it, good luck...
tintruder
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Re: Tank Sealant

Post by tintruder »

The 3M Product EC-776 works great.

https://www.3m.com/3M/en_US/company-us/ ... 364&rt=rud" onclick="window.open(this.href);return false;
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joolstacho
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Re: Tank Sealant

Post by joolstacho »

tintruder wrote:The 3M Product EC-776 works great.

https://www.3m.com/3M/en_US/company-us/ ... 364&rt=rud" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
Well. If you HAVE TO DO IT this 3M product is probably the best one to use. (I think this is the product used to re-seal all our Aussie F15 Hornet fuel tanks with).
Looks like it comes in 1 quart or 5 gallon containers.

Gawd 'elp ya if it ever starts to flake off on the inside... then the nightmare REALLY starts!
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Alan H
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Re: Tank Sealant

Post by Alan H »

Not sure what it was, but the sealer on the gt750 tank let go after just on 1000 miles last year. I used proper stripper to get it out, then found out it had been applied over another sealer. It was the first one that had actually been put in incorrectly.
Of course this was after the tank had ben painted fully. I then sent it away to be chemically stripped - twice - and painted again, so folks will understand if I say 'strip and clean the tank properly and don't use tank sealer'. None of my bikes have any in.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
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Evans Ward
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Re: Tank Sealant

Post by Evans Ward »

I've sealed 4 tanks with POR15 with excellent results. You must follow the instructions as indicated and not skip any steps. You need to schedule a good half day or more. Be very careful if your paint is good! You do not want to get any chemicals on the painted surface. I would recommend at least 3 layers of tape over the entire painted surface. The other thing I wouldn't recommend is to leave a heat gun or hair dryer in the top hole for drying the tank out. I actually had one tank's tape catch on fire on the tape and ruin the paint job. It does provide a hard surface once done and I have one tank done 12 years ago still working as intended. It will seal pin holes too. Prior to this process, I fill the tank with Evaporust (great product!!) and let it sit for a week. This step will improve your results. Tip: purchase your Evaporust in the 5 gal bucket off Amazon for about $80 including shipping. Have never used the Caswell product but have heard great reviews from its users.
1976 Suzuki GT750 (Maui Blue), 1972 Kawasaki H2 750 Mach IV (Candytone Blue), 1984 Yamaha RZ350 (KRR- Yellow/ Black).
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johnakay
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Re: Tank Sealant

Post by johnakay »

if your tank is not leaking then why bother?
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joolstacho
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Re: Tank Sealant

Post by joolstacho »

Yes! Very good question.
(One day sure enough, some poor bugger will have the job of stripping it out!)
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jabcb
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Re: Tank Sealant

Post by jabcb »

Evapo-rust & Metal Rescue are both available from Amazon for about $80 for 5 gallons.

My GT380 cafe build had the worst tank rust I’ve ever seen. It wouldn’t start because rust had pretty much completely plugged up the petcock.
Used Caswell + a new petcock.

My gray GT750 was having petcock problems. Happened twice: petcock went bad & then got gas dripping out of a carb.
Finally at the end of this riding season I figured out why. Took the petcock apart & there were tiny bits of tank liner screwing with the diaphragm mechanism. (I used inline fuel filters so the carb were ok.) Some PO had lined the tank so I don’t know what he used.
At least now I know what’s wrong & its on the list of projects for next year.
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Evans Ward
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Re: Tank Sealant

Post by Evans Ward »

Most of you probably already know, but that Kreem is some bad stuff especially when the liner starts separating. That one should be avoided at all costs.
1976 Suzuki GT750 (Maui Blue), 1972 Kawasaki H2 750 Mach IV (Candytone Blue), 1984 Yamaha RZ350 (KRR- Yellow/ Black).
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