1. Having site issues? Contact Dub@southernPolyurethanes.com
    Dismiss Notice

Help with UV Clear Solvent Pop

Discussion in 'Clear Coat 2100, 4000, 4100, 5000, 5100' started by nokin, Jul 27, 2017.

  1. EddieF

    EddieF Top Banana

    I'd like to hear if it pops if you mix & pour some on piece of scrap with, without base, degreaser, ect in booth.
    Mix it where u have been & pour where u spray. Just curious.
     
  2. nokin

    nokin New Member

    It doesn't pop if I just pour it. I tried it before after I saw your previous post. Sprayed some, then poured the rest on top of an uncleaned dirty gallon can, nice and thick, no pop.
     
    Last edited: Sep 24, 2017
  3. DATEC

    DATEC Member


    If you did pour it out and it didn't pop but does when you spray it then the answer (for me atleast) is either you or your equipment. Both of which I'm kinda lost.

    You say you have a refrigerated air dryer? Are you sure it is working? You shouldn't have any water after that, are the other filters clean and good to Go? You also have your garage air supply plumbed with Copper??.. (copper wouldn't have been my choice) Any issues There? Over time piping can get a build up of oil on the inside, which is why I always say the big gun filter (coalescing) needs to be at the booth as close to the guns air line as possible. the booths air is the most important to be as clean as you can get it, you don't skimp on air filtration.
     
  4. nokin

    nokin New Member

    The copper piping, air dryer, and QC3 are all new. I added it all after I started having problems. It used to be just all rubber hoses and a couple of regulator/filters, which was problem free for 3 years.

    I believe the air dryer is working, the inlet is luke warm and outlet is cold.

    I didn't change my spraying technique from when it was working to when I started having problems, but to try to solve it, I've sprayed at higher pressure, lower pressure, farther, closer, light coats, wet coats, reduced, not reduced, retarded, not retarded and any combination I could think of, still can't get rid of it.

    Tried another compressor also, still no luck. And my main compressor and the smaller one I tried are both the oil-less type.
     
  5. DATEC

    DATEC Member

    What brand primers and Base are you using? Could it be for some odd reason they have issues reacting when SPI clear is applied? I'm not a chemist but your issue has me stumped. That would be the last item I can think of without being there and doing one or two myself with my equipment.

    If you can list all material, the brands and reducer temps, that might shed some light.
     
  6. dhutton01

    dhutton01 Member

    Are you using SPI reducer and activator in the base?
     
  7. EddieF

    EddieF Top Banana

    Drag out old cheap rubber hose sounding like to ne.

    Btw- yay. I got interesting question tested & no bubbles.
     
  8. nokin

    nokin New Member

    I do custom airbrush work, so all I use are auto air, wicked colors, and house of kolor paints. No temps on the reducer for the waterbased paints, but I use the medium with house of kolor RU111.

    I think I ruled out the paint when Barry had me clear the bare metal gallon can and it did the same thing.

    Going to try to clear something outdoors, will help me rule out some things.
     
  9. nokin

    nokin New Member

    Hah! That's why you are a "top banana"! I replaced all my rubber hoses with those yellow goodyear ones, are there better ones I can try? I'll try anything! This is killing my production time.
     
  10. nokin

    nokin New Member

    Welp, sprayed outside, still having problems. This is what the surface looks like after the first coat, solvent pop?
    IMG_0956.JPG IMG_0957.JPG IMG_0958.JPG
     
  11. DATEC

    DATEC Member

    What are you mixing it in and with what to Stir? Dam this has me stymied.

    What do your clean you gun with? Use any gun lubricant?
     
  12. nokin

    nokin New Member

    I use mixing cups and wooden sticks. As for cleaning my guns, just acetone and reducer. And no on the lubricant.
     
  13. EddieF

    EddieF Top Banana

    When i said get out old air hose it was because u said it was all good tiil you redid air supply.
    How bout connecting old hose to compressor tank & regulator on gun and see what happens.
    Would eliminate all your new gear.

    I never read novels but this is a good one :)
     
  14. nokin

    nokin New Member

    Ahhh no, it was all good when I changed nothing. Old setup was just compressor through two regulators connected with rubber hoses. That worked beautifully for a long time, then all of a sudden the problems, and that's when I redid all the air lines and added all the other stuff.

    If it wasn't broke, I wasn't going to fix it!

    Hopefully, this novel has a good ending? Anyone read something similar before and have a cliff notes version for me?
     

Share This Page