Okay, i finally cleared an afternoon, and stated the most dreaded restoration job on my SS: cleaning my tank.
After i read this post, i was sold to the POR 15, orderded it, and i left this job last, just to make sure the tank will not sit empty for a long time.
Mind you, i started a complete overhaul of my 98 SS i.e. 11 months ago, planning a cafe racer conversion.
The tank in question comes from a 96 600SS, left to decay in a barn; the previous owner bought for scrap, but was refused, beacuse of the plastics and mixed aluminium parts, so he sold it. I only bought the bike for the tank, and man, that bike was in a sorry state. but the tank had no leaks, so i went for it. I have to say, the inside had around 3-4 mm of solid rust inside. Solid, evenly distributed rust. It looked like it sat on the bottom of the ocean for a year. No leaks, though. Check out my first image.
6 or 7 months before the POR 15 treatment, the tank was filled to the brim with 100% apple vinegar 6% solution, and left for a3-4 days. My garage still smells like vinegar and rusty nails, even after 6-7 months. It will litterally knock your socks off. After a thorough cleaning, the inside looked clean, all the piping was ok, so i left it on the shelf for a later date.
Now, that day is here. It took me around 9 hours for the complete procedure, i followed it to the letter. Some thoughts on each product from the kit.
The Cleaner was a bit dissappointing, as it seemed weak in force, as i respected the 1:1 dilution. I've had better results with vinegar, honestly. Same goes for the MarineClean. Mine did not create the froth that everyone mentions; i left it in extensively, 30-40 min for each side/panel, and a thorough flush and hot water treatment in between sessions. I was draining the Marine before each flush. The result was satisfactory, although i would have preffered to use a vinegar solution in between sessions, and use the Marine after the vinegar part. Some flash of rust remained, though, but i used very hot water and dried it immediately, using my wife's high performance hairdryer. That sucker has 2200Watts, mind you. I had to use welding gloves in order to hold the tank, it got that hot
The liner is another bitch: it took me 20 minutes to crack open the tiny can, and another 10-15 to mix the product.
The whole garage smelled like Marine Clean and liner; it all felt weird and hazy, like a "Fear and Loathing in LV' scene, plus i was using beer as a gap-filler in between sessions.
I did the best i could to evenly cover all the surfaces, making sure there were no bubbles(impossible task), and no puddles( a big no-no).
It was 4 AM, and my head was a haze by the time i drained the remaining liner. I removed all the inside/outside pipe protection, inserting a wood chip in each, to prevent clogging overnight.
The result though, is amazing: it all looks new inside. Now i understand all the hype around the POR15. I hope it will hold, as i have read horror stories, with exfoliation and flaking, but i hope all that was because of the puddles left inside.
I hope this helps in some way.
Here's some pics of various stages of the procedure, as well as a preview of my shed project.