Caswell job RZ350 tank

[Kawtriplefreak]

The big brown goody truck came today and the prep began.



3 coats of seal mask paint protector applied with a paint brush. Tomorrow I will wrap the tank in glad wrap and tin foil per the instructions and pour in a gallon of stripper. I made a template from a junk petcock and cut a piece of inner tube to block the petcock hole using the junk petcock.

[grcamna3]

Following along 

[Striker1423]

Oh my I have never seen a painted on paint protector. That's really cool!

[SoCal250]

Oh my I have never seen a painted on paint protector. That's really cool!

That makes two of us. Pretty cool!   

[RDryan]

Wow that is mad. Sounds like that stripper is some pretty serious stuff. What exactly does it strip?...like everything. Rust, corrosion and I'm guessing  a previous sealing job?

[Striker1423]

Wow that is mad. Sounds like that stripper is some pretty serious stuff. What exactly does it strip?...like everything. Rust, corrosion and I'm guessing  a previous sealing job?

The stripper is of course a problem, but the Caswell epoxy getting on the paint itself is the biggest issue. It will stick and screw up your paint in a quick way.

Also, I have a feeling is the paint protector a form of plastidip?

[1976RD400C]

I've done Caswell's twice and it is holding up good. One is 15 years old.

[RDryan]

My tank is solid but not very pretty. The owner before me sealed it and I believe they used Red Kote fuel tank liner but I'm not sure. Just based on my observation. It's light in the red color but kinda heavy in some spots and looks like it encapsulates what they left behind for surface rust. Looks solid but if I ever wanted a better solution I'm not sure I could ever remove it.

[Kawtriplefreak]

It is a slow process so far. I spent the day agitating it by hand.  It says it can take as long as over night. We will see.

[Kawtriplefreak]

After two days of agitating and not much progress I boiled a big pot of water x2 on my shop stove and poured it into the tank. Finally some progress. I spent the afternoon grabbing what I could reach with the long needle noses and dragging it out of the filler hole.



Tomorrow's plan is to drain the stripper water mix into a bucket and hope all the liner comes out.
If it doesn't I will boil the mixture and try again.

[grcamna3]

I hope the paint protector is staying attached.

[Kawtriplefreak]

So far so good. We will see.

[RDnuTZ]

the process looks pretty involved, but interesting  I haven't needed to etch and seal a metal tank since probably the late 1970's and the "go-to" back then was KREEM. I think Caswell was around for mostly fiberglass tanks? More recently I've seen people recommending POR? Nice that we have more choices these days 

[m in sc]

ive done a lot of metal tanks with caswell.

[Kawtriplefreak]

So far so good on the paint protector.


Another pile of liner. I used mechanical fingers to grab the sheets and chunks along with the long needle noses to twist it into a knot and drag it out through the fill hole. I boiled the solution 3 times today and got nearly all of it out. I left the mixture in overnight. I hope to be done with the stripping tomorrow.

My $25 FB Marketplace shop stove comes through again. I am so glad I put casters on it so I can roll it around easily. I moved it right next to the doors so the fumes from the boiling stripper don't kill me.