I like Unknown coatings channel, he has some good stuff. I bought the same vinyl plotter he uses, the US Cutter MH871. The 1lb hoppers from Columbia have the 1 way check valve stem in them but they sell the stems on their site so you can turn any container into a hopper.
PS
I did my first two coat job last night, turns out a second coat will eat up surface imperfections beautifully! I’ll post pics later.
My dad had an old brown glass jug of muriatic acid in his garage when I was growing up. The metal cap rusted through and everything within 10 feet rusted something awful. Don’t want any part of that…
I’ve got a gallon jug of it in the shop, it’s a plastic jug. You are 100% right though, if you leave it open the fumes will cause surface rust on ANY untreated ferrous metal in the area over just a weekend but it works fast and if you keep it sealed you won’t have any issues. I’m in snow country so working with it outside is off the table half the year which is why a year after buying it the gallon jug still sits unopened…
It’s great for cleaning just about anything though, hot tubs, concrete, metal etc.
My cans don’t have the check valve . Hmmm anyway the old style can split off goin through the lid had 2 air lines blowing in opposite directions. Seems to me that it fluidized the powder better.
Another word of advice don’t try two big of a can with very large amount of powder. When you start out they put out to much powder. Then very quickly you fight to get enough air to fluidize the powder. Just don’t ask how I know. I learn a lot from errors!!
I’ve experienced that everything is going great and then it’s what in the hell just happened.
Is it normal to hear the static as you’re spraying the powder? I can hear it crackling when I spray it on. I’m using the wide mouth multi-coat nozzle, tried it at 100k and 80k and it was crackling like static electricity on both settings.
No that isn’t normal did you get back ionization?? Fisheye looking powder layout. Are you holding the gun anywhere but handle? Is tip in proper?
Oh yeah that gun can bite!!!
Yeah that’s another don’t ask!!!
Keep hands and feet away from the front of the gun.
Why so high on KV?
He said he tried 100 and 80. May need a earth ground added.
Stick with the vinegar not hazardous to your health, get the pickling vinegar it is 7-8 % more acidic than regular white vinegar.
I keep mine halfway. If you get the gun too close it will back ionize the part create a crater that will not take powder and is a pain to deal with. Don’t ask me how I know…
I added a #6 wire and dedicated ground rod and have an 8ga car stereo amp wire on my alligator clip and I can’t see the difference. I’ve held parts by the hook in my hand and had better attraction of the powder. The ground and KV is definitely not an exact science. I’ve started hosing down the ground around the ground rod to see if it helps.
I added a earth ground when I started. Really never tried to compare. I wonder if his electrode is dirty?
Idk I clean mine after every use. Guy that owns Columbia Coatings said some people bend the electrode slightly to get it closer to the powder stream???
Don’t grab the barrel of the gun when it’s crackling. I release the trigger and hold my gun next to one of my lights to dissipate the charge and go again.
Yeah it can be a mad dog!!!
I wonder if anyone sells a corona ring to fit that gun.
I don’t know but after I grabbed the barrel I needed a couple of Corona’s…
I looked they sell them for the Kremlin gun yeah 488 bucks. Dan at right now powder coating 3d prints them for the gema guns. Supposed to help with back ionization.