N
Nomura
Hello Members... I'm a beginner...this was my first overall spraying 4100 UV clear and 4104 Very Slow Activator over PPG Waterborne Envirobase. Using an Anest Iwata Entech LS400 1.4 Tip (green cap). I was trying to find it's "sweet spot" so my regulated air pressure varied 22psi to 28psi. Results were somewhat satisfying, considering it was my first, although it was way short of spectacular.
I ended up using 26-28psi for the most part, but it seemed to spray a little dry... temperature that day was a hot and dry 97F degrees. Is it wise to choose a higher pressure when temperature is high?
I now realize I should have added some "Reducer"? or should I have added some "Retarder"? or both? How do they differ?
Also, 10 days later while cutting the clear I noticed these small areas of micro-bubbles, only on the hood. Would this be a result of not using a Reducer or Retarder?? My thought is... because the hood is on a horizontal plane, tipping the gun excessively and sucking some air down the cup would cause these micro bubbles to develop. I dunno, please advise.
I ended up using 26-28psi for the most part, but it seemed to spray a little dry... temperature that day was a hot and dry 97F degrees. Is it wise to choose a higher pressure when temperature is high?
I now realize I should have added some "Reducer"? or should I have added some "Retarder"? or both? How do they differ?
Also, 10 days later while cutting the clear I noticed these small areas of micro-bubbles, only on the hood. Would this be a result of not using a Reducer or Retarder?? My thought is... because the hood is on a horizontal plane, tipping the gun excessively and sucking some air down the cup would cause these micro bubbles to develop. I dunno, please advise.