I tried out the 3M Spray wand 8998 to do the inside of the frame.
This wand is about a 4 ft stiff plastic house with a nozzle on the end that sprays forwards and to both sides. It has a plastic fitting on the other end to attach to a Shultz underbody oil gun for rust proofing.
In general it did a nice job with POR15 but it doesn't work without the following modifications:
Turn up the pressure a lot - the wand says max 45psi, but I ran it at 100psi at the tank with a 20 ft hose, so it lost pressure along the way but I don't know what it was at the wand.
Cut the wand length in half, and discard the threaded end. Re-insert the threaded adapter.
Thin down the POR15 a lot. POR15 site says a max thinning of 5%, but I had to thin it down way more than that. I don't know what thinning more than 5% actually does?
That got it going decently.
As will as the Shultz gun, I also had to buy a can of what looks like auto transmission underspray, just to get the can.
The wand is about $13
Steve L.
73 coupe since new
This wand is about a 4 ft stiff plastic house with a nozzle on the end that sprays forwards and to both sides. It has a plastic fitting on the other end to attach to a Shultz underbody oil gun for rust proofing.
In general it did a nice job with POR15 but it doesn't work without the following modifications:
Turn up the pressure a lot - the wand says max 45psi, but I ran it at 100psi at the tank with a 20 ft hose, so it lost pressure along the way but I don't know what it was at the wand.
Cut the wand length in half, and discard the threaded end. Re-insert the threaded adapter.
Thin down the POR15 a lot. POR15 site says a max thinning of 5%, but I had to thin it down way more than that. I don't know what thinning more than 5% actually does?
That got it going decently.
As will as the Shultz gun, I also had to buy a can of what looks like auto transmission underspray, just to get the can.
The wand is about $13
Steve L.
73 coupe since new
Comment