Gun adjustment

C

chevy_power427

I was watching videos on youtube, and came across a guy that sells his own brand of clears, a relabelled brand made by autobahn, it's called the wet wet. He claims he has the highest solids.... Just like every other brand out there. Anyhow, he made a video showing how to set the gun.... Never seen such a technique, 50 PSI !!!!

https://www.youtube.com/watch?v=P_3vSRaFYxM

On my behalf, I use SPI, it's what works the best for me, and I am not interested in trying anything new, but if I was, just by seeing this settings, I would walk away.
 
Interesting......I thought 50 PSI working pressure went out with the siphon feed pre-HVLP days. IMO, a side view doesn't mean much when adjusting the fan especially when only shooting thinners through it. Put some higher viscosity mixture (reducer + material) and I'm sure it will be a lot different. It's the front-on view pattern against a spray board that matters the most. I've seen some of this guys videos especially when wet sanding and he talks mainly of clear gloss, but with no mention or caution on dealing with urethane wave/ripple from a HS clear. He also makes it sound like you can use ~50 PSI across the board and as we all know, different guns behave differently with different settings. I'd also be a little leery of having 100PSI static pressure with that in-line filter as most are rated for that as a max.
 
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He doesn't mention what his clear is based on ( polyurethane, acrylic urethane..). Today, if you look at any paint lines website and promotional sheet, they all state, great gloss, DOI and so on. As you said, spraying thinner and a HS product will change settings on the gun, can't adjust gun using something with a different viscosity than the product being sprayed, thinner, clearcoat, basecoat and primer will all behave differently. He doesn't even mention the nozzle size, some guy could try it with a 1.8, others with a 1.3, especially if it's someone that has never sprayed before...

I tried to see if there was any reviews out there, all I can seem to find is videos of people promoting as if they were handed out samples and maybe some $$$, who knows.
You can have a very bad quality clear, lay it out nice and buff it, will look amazing on day one, and even better on camera, but long term, that's another story.
I have been burned in the past with lower end stuff, not worth saving some money if in the long end the results aren't good.
 
I use around 50 psi at the wall regulator, pretty much every clear through a Sata 5000RP. At the gun I don't know as it's a non digital model and I have no gun regulator. I've always adjusted at the wall. I've shot many many cars that way over the years. (probably several thousand) Most with Sata's a few with Devillbiss. More air pressure is usually a good thing with clear. 10 psi at the cap 30 psi max, doesn't always work with some if not all clears. Want to get something with little to no peel? Turn up your air pressure and get your fluid adjustment right.
 
I'm going to return the gallon of UV clear on it's way to me right now and buy some "wet wet". The poster behind him says "no buffing". I can't believe UV clear can't prevent dust and trash landing on the clear like the "wet wet" can.
 
Prevent dust and trash landing on clear? Are you kidding me? There is no paint product that will do that.
 
Dust and trash come from your surroundings. Clothes, car crevices, light bulbs, garage door runners, dirt from floor on air hose, the air itself as it moves around. I know someone who used to work at a place where they build new cars. He told me that in spite of the millions spent on paint rooms they still had some dirt in paint. Your dreaming if you think you can keep all the trash out of it. I don't mean to be cruel but trash in paint is a fact of life if you paint much. No buffing is a matter of being satisfied with the finish you created. All clears can be left alone if you are happy with the way the finish looks.
 
I actually responded to Bentrustynail but went back and deleted my post. He has to be kidding?
 
Yes, I was joking. Sorry, I didnt think anyone would take me seriously......
 
Never tried spraying at that high of a PSI. In general higher PSI gives you better atomization, but the trade off is more overspray. I usually start around 30PSI and adjust using a piece of paper taped to the wall.
 
I thought that was what budweiser was for, the i drink the less trash i see lol!
 
Bentrustynail;n83588 said:
Yes, I was joking. Sorry, I didnt think anyone would take me seriously......
Click to expand...


The more I thought about it, the more I realized you had to be joking.
 
Outlaw;n83606 said:
The more I thought about it, the more I realized you had to be joking.
Click to expand...

I also thought about it for a while before I responded. I then remembered all the crazy things I have seen and heard over the years that people have said and done and thought maybe, just maybe he is not joking. There is probably a 20 page thread for all the things we've heard/seen over the years. I am guilty of a few of them. Please forgive if I seemed to take it the wrong way.
 
I have lots and lots of respect for everyone on this forum. As much as I've learned here and from experience seems when I start a new project I learn something new. I realize I will never know it all. Thank you to everyone who contributes their knowledge and experience
 
Spi, never charges extra for: Runs, Orange peel, dirt or solvent popping.
As a bonus, those little white specks from moisture is also free of charge!
 
Barry said:
Spi, never charges extra for: Runs, Orange peel, dirt or solvent popping.
As a bonus, those little white specks from moisture is also free of charge!
Click to expand...
"And if you call in the next 20 minutes, we'll even double our offer, twice more runs, dirt and solvent popping! All free of charge! And as a bonus we'll even include delamination! Please call now!"

I'm kidding.
 
"wet wet" is sprayed with 100psi at the gun, I am thinking of ganging two compressors together and using 250psi for UV clear. I am surprised 250psi isn't recommended in the TDS. I assume with 250psi, UV clear will be self sanding and buffing like "wet wet"?


p.s. Just kidding......
 
elwood;n83586 said:
Dust and trash come from your surroundings. Clothes, car crevices, light bulbs, garage door runners, dirt from floor on air hose, the air itself as it moves around. I know someone who used to work at a place where they build new cars. He told me that in spite of the millions spent on paint rooms they still had some dirt in paint. Your dreaming if you think you can keep all the trash out of it.
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I believe manufacturers could lay a smooth peel free finish if they wanted to, but a no trash finish, is something else.
​At about 3:50 you can see two people working on just the hood, and others working on the other panels.
 
I've watched his videos before and he not only gets trash it looks like someone threw a shovel full of floor dirt on them and his runs are gigantic. The area he uses for painting are the worst I have ever seen, I wonder if he does it in those conditions on purpose.
 
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