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Neo refused to spray.

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  • JR
    • May 2015
    • 18273

    #1

    Neo refused to spray.

    Did the normal clean after spraying a dark colour before changing to white. When I tighten up the nozzle cap there is no air, undo it and it flows ? Any advice please.
  • BarryW
    SMF Supporters
    • Jul 2011
    • 6009

    #2
    Another clean. A strip one. Issues such as this are usually down to that. I have often thought my airbrush was perfectly clean, after cleaning, for it to stick, block or something else. Always another clean up solves it.

    Some tips
    First do a back wash in the normal way and wipe around everywhere with a cotton bud.

    Then strip it down, remove nozzle needle etc and drop them in a small glass of airbrush solvent. A lacquer thinner works well for this regardless pretty much of the type of paint. This losens any residue.

    Remove parts one by one from the solvent with an tweezer and clean them off. Depending on what it is I might wipe with a kitchen towel, a cotton bud, run the part through with an airbrush cleaning brush dipped in solvent or, a dentist paper point.

    if I am between projects I will finish off by popping the parts in an ultrasonic cleaner for a few minutes.

    Comment

    • JR
      • May 2015
      • 18273

      #3
      Originally posted by BarryW
      Another clean. A strip one. Issues such as this are usually down to that. I have often thought my airbrush was perfectly clean, after cleaning, for it to stick, block or something else. Always another clean up solves it.

      Some tips
      First do a back wash in the normal way and wipe around everywhere with a cotton bud.

      Then strip it down, remove nozzle needle etc and drop them in a small glass of airbrush solvent. A lacquer thinner works well for this regardless pretty much of the type of paint. This losens any residue.

      Remove parts one by one from the solvent with an tweezer and clean them off. Depending on what it is I might wipe with a kitchen towel, a cotton bud, run the part through with an airbrush cleaning brush dipped in solvent or, a dentist paper point.

      if I am between projects I will finish off by popping the parts in an ultrasonic cleaner for a few minutes.
      Thanks Barry, going back into the cave after a cup of tea , will do that.

      Comment

      • Mark1
        • Apr 2021
        • 4156

        #4
        Ive had this happen,bit of grud built up around the aircap hole blocking the airflow,if im in midspray just undid the cap a fraction to open the gap, failing that remove it and a poke with a cocktail stick.

        Comment

        • Jim R
          SMF Supporters
          • Apr 2018
          • 15638
          • Jim
          • Shropshire

          #5
          I reckon Barry's right John. A good, deep clean.

          Comment

          • Andy T
            SMF Supporters
            • Apr 2021
            • 3239
            • Sheffield

            #6
            If I may add; I'd be concentrating on the hole in the centre of the nozzle cap if screwing that on stops airflow. They can build up a film on the inside which then acts like a seal when tightened on.

            Comment

            • langy71
              SMF Supporters
              • Apr 2018
              • 1947
              • Chris
              • Nottingham

              #7
              The only reason I stopped using my Neo was that despite multiple cleans it still blows air back into the paint cup constantly causing paint to splatter all over the place and rendering it unusable.... I've tried no end of times to sort it out...but no luck, so now it just sits in the draw, unloved....

              Comment

              • Airborne01
                • Mar 2021
                • 3935
                • Steve
                • Essex

                #8
                Originally posted by langy71
                The only reason I stopped using my Neo was that despite multiple cleans it still blows air back into the paint cup constantly causing paint to splatter all over the place and rendering it unusable.... I've tried no end of times to sort it out...but no luck, so now it just sits in the draw, unloved....
                A bad case of 'No Spray Neoh'! perhaps ?
                Steve

                Comment

                • stillp
                  SMF Supporters
                  • Nov 2016
                  • 8085
                  • Pete
                  • Rugby

                  #9
                  Originally posted by langy71
                  The only reason I stopped using my Neo was that despite multiple cleans it still blows air back into the paint cup constantly causing paint to splatter all over the place and rendering it unusable.... I've tried no end of times to sort it out...but no luck, so now it just sits in the draw, unloved....
                  Well if you want to donate it to a good home...
                  Pete

                  Comment

                  • JR
                    • May 2015
                    • 18273

                    #10
                    Originally posted by Mark1
                    Ive had this happen,bit of grud built up around the aircap hole blocking the airflow,if im in midspray just undid the cap a fraction to open the gap, failing that remove it and a poke with a cocktail stick.
                    Originally posted by Jim R
                    I reckon Barry's right John. A good, deep clean.
                    Originally posted by Andy T
                    If I may add; I'd be concentrating on the hole in the centre of the nozzle cap if screwing that on stops airflow. They can build up a film on the inside which then acts like a seal when tightened on.
                    Thanks guys , I soaked all the small parts in AB cleaner, put all back together and still no luck .Mark your problem sounds exactly like mine .
                    Tonight I had a test, replaced the needle and tip ,using the original size that comes with the AB .35 air flows well , but using the other still no air .I can't see any crud . Complete baffled.

                    Never had much success with a AB , have 2 H&S Ultra's , remember the needle mix up along with those unmarked nozzles I had ?
                    Have even thought of getting a complete set of replacement , needle, nozzle and cap for one .

                    Infinity CRplus , have one in the drawer as well , again mixed up the nozzels before they put rings on them .
                    Now have the figures half primed, was going to spray the white down from the top. All that has happened is I have splatters of white :angry:

                    The joys of AB 's

                    Comment

                    • stillp
                      SMF Supporters
                      • Nov 2016
                      • 8085
                      • Pete
                      • Rugby

                      #11
                      A while ago I bought some mini cotton buds - like cocktail sticks with a bit of cotton wool on the end, ideal for cleaning inside the air cap. I can't remember where I bought them (perhaps Amazon) or what they were called though.
                      Pete

                      Update - found them: https://www.amazon.co.uk/ZHIYE-Eyebr...zcF9hdGY&psc=1

                      Comment

                      • JR
                        • May 2015
                        • 18273

                        #12
                        Originally posted by stillp
                        A while ago I bought some mini cotton buds - like cocktail sticks with a bit of cotton wool on the end, ideal for cleaning inside the air cap. I can't remember where I bought them (perhaps Amazon) or what they were called though.
                        Pete

                        Update - found them: https://www.amazon.co.uk/ZHIYE-Eyebrow-Make-up-Dedicated-Picking/dp/B08185JWXW/ref=sr_1_3_sspa?crid=2CRBE3X3UM2GJ&keywords=cotton +swabs+pointed&qid=1677880351&sprefix=cotton+swabs ,aps,484&sr=8-3-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1
                        Thanks .
                        Just had a look Pete, they do appeal, better than those std cotton buds .

                        Comment

                        • Mark1
                          • Apr 2021
                          • 4156

                          #13
                          Hope you get to the bottom of it John, since i got my iwata eclipse hp cr ive had no problems, never take it apart to clean it,just give it a good blow through with cleaner,very occasionally the paint wont come through and just pull the needle out ,a quick wipe with cleaner and like new again.

                          Comment

                          • JR
                            • May 2015
                            • 18273

                            #14
                            Originally posted by Mark1
                            Hope you get to the bottom of it John, since i got my iwata eclipse hp cr ive had no problems, never take it apart to clean it,just give it a good blow through with cleaner,very occasionally the paint wont come through and just pull the needle out ,a quick wipe with cleaner and like new again.
                            Thanks Mark .
                            Changing back to the .34 needle and nozzle seems have worked, will check again in the morning. As a precaution I've ordered a new needle set for my Ultra , along with an internal seal set !

                            Comment

                            • Ian M
                              Administrator
                              • Dec 2008
                              • 18259
                              • Ian
                              • Falster, Denmark

                              #15
                              I have the same issue with my CRplus. I put it down to micro crud in the paint and maybe to fine a pointy end. A quick "wash" of the tip with a thinners soaked paint brush normally sorts it. Otherwise its a strip search.
                              Group builds

                              Bismarck

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