failed por 15 tank sealer removal

[schneed]

I used the POR-15 tank sealer recently. It worked great. I used MEK solvent, BBs and nuts & bolts to remove old dirt, rust and some old pealing sealer. I just shook it vigorously for a very long time...though it woulda been nice to strap it to paint shaker! then I used a magnet to get out the BBs and nuts after shaking.

As far as drying goes, I set an old hair dryer in the tank for hours, adjusting the position several times...it needs to be completely dry! this is the most important step!

I agree that you could leave the old sealer in the tank if it is stuck.

[Mosh]

I would not spend too much time on removing what is stuck in place but rather just re-coat it again with same product (which i have only heard high praise for) or use the RedCoat (which is all I have ever used after 1 terrible exsperiance with that crap (can not think of the name of it right now darn it!) CREAM, that stuff and I did not get along at all.
But anyway, simply recoat it IMO

john

You have to be about the 20th person I have heard complaints from using the "Kreem" kits.

I had a street bike tank with a hole behind the mount bracket. Big enough of a hole that gas or water would just stream out of it. I used the Kreem kit on it, the "whole kit" after 3 days of washing and drying the tank. Then I let that stuff sit outside on my trailer in the tank, and had the wife rotate the tank every 1 hour for 2 days in the middle of the hot June Sun. They tell you you will have extra to dump out..I never did.
I have run over 15 tanks of fuel through there and rode that bike for a year and 1/2 with no issues and over 2k miles. I must have got lucky, cuz all I hear is horror stories about Kreem anymore.

[studebakerjim]

I have used POR 15 on many fuel tanks. On my 110 and on a JD model A tractor and on my 38 D2 Cat pony engine tank. I have had great success with it. It's all in the prepping before using.

I wash the tank with straight (not watered down) muratic acid and I will through old bolts or nuts even rocks into the tank. Shake the living heck out of then drain and flush. The Cat diesel tank I had to wash at least 10 times. Looked like a new tank when done.

Use caution with muratic acid.

[fabiodriven]

Use caution with muratic acid.

Extreme caution! Very dangerous stuff!!!

[3wheely]

I just used por-15 and it worked great! The tank has to be completely dry or you're just wasting time and money. I used a shop vac and sucked every drop of water i could get out of it, then used a hairdryer for at least two hours. Then let it sit for another day just to ensure it was dry. After rolling the tank make sure you get any access out or it will puddle and cause problems. I then let the sealer dry for 5 days. Very happy with this product.

[Macs]

I use por15 for everything and it has always worked perfect except in ATC 70 tanks. I dont know if it has anything to do with the size, material or what. But my fix is a couple handfulls of small nuts, beat it around then reapply. It always sticks the second time.

[kilabeez0]

instead of letting a tank sit for a few days after rinsing with water you should fill it completely with acetone at least twice and shake it around. as soon as you dump the water out flash rust occurs, and letting a tank sit for days after using water you're not helping the situation. acetone + compressed air/hair dryer whatever and then kote it

[zeeker1]

I have used a POR15 tank sealer kit with excellent results. I followed every direction exactly. I read about a guy who packed his tank in a heavy box packed with bubble wrap (tank filled with a couple of handfuls of screws) and put it in his clothes drier for a few hours. I've never personally tried this but the idea sounded good to me. Also seen a video of a guy who strapped his tank to the rear wheel of his jacked up lawn tractor and let it run all afternoon.

[Thorpe]

YOU CANNOT REAPPLY A POR15 tank sealer, on top of old tank sealer... I know this from experience. IT WILL NOT STICK TO ITSELF. I would try heating the outside of the tank with a propane torch, nice and easy... Otherwise, you may be screwed. POR says there isnt a chemical to remove it once its cured... (called and asked)

[DSHOT59]

I`ve used por-15 on a few old dirt bike tanks as well with good results. In fact the tank on my 200 has it in. Was leaking in the back where it bolts to the frame so the po gobbed silicone all over the outside and it wasn`t cuttin it. Been fine for some time now.

[atc007]

YOU CANNOT REAPPLY A POR15 tank sealer, on top of old tank sealer... I know this from experience. IT WILL NOT STICK TO ITSELF. I would try heating the outside of the tank with a propane torch, nice and easy... Otherwise, you may be screwed. POR says there isnt a chemical to remove it once its cured... (called and asked)

Well,shucks.. After thinking about this over night. I thought Exactly what Jeswhinehart said earlier.. Use whatever you could manipulate in there,,,remove all the loose stuff you possibly can,,then simply recoat it.. At this point,,not sure what else you could do. But Thorpe has Obviously been there don that! So,that's out.. Like Mosh,,I have used Kreem MANY times with perfect results,,I've heard lately that Ethanol eats it. And I would believe that in a second! Anyhow,,Just not sure what to tell ya on this original problem! Do it once do it right.. And like mentioned above,,the longer it sits,the longer it has to flash rust....

[twitch101]

well the aircraft remover has certainly loosened it. i threw some tek screws in there and started shaking it around and i can see it doing some work. theres some stuff in there i just cant see or get to. ive contemplated having it cut open and cleaned/sealed but i dont think it would be worth it? for that money i could go with a plastic tank but plastic just doesnt look as good as the metal tanks. obviously something has to touch this por 15 chemically because por 15 sells a strip compound for it. . like others have said i like the idea throwing in in a dryer or paint shaker but i dont have access to that. maybe ill stop in harbor freight and pick up a cheap drill and leave it running while im at work with the tank attatched somehow.....this is the redneck in me lol

is there an adapter someone makes for sandblasters to shoot in there?


anyone have one of these?

http://www.youtube.com/watch?NR=1&fe...&v=O1wnZpfT7bs

[twitch101]

well its official, the answer to removing a por 15 sealer is this viscious and very volatile mix of methlyene chloride, and a little bit of MEK. it practically poured out of the petcock tube, let it soak for a few days though! time for round 2. im going to keep it drying for atleast a whole day before i seal it and ill keep it inside. i was on the verge of going for a plastic tank.

[WisconsinJohn]

Sweet, good to know. Dont huff that mix it will give you the munchies.