Schutz gun and UPOL

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PostPosted: Fri Apr 23, 2021 11:24 pm
A while ago I posted this thread asking how to match the pictured textured finish.

Someone replied pointing me to UPOL Raptor

I've been reading about UPOL and I called my local Industrial Finish store. A quart of white UPOL costs $50. They said I could tint it or just apply a top coat of flat color (i.e treat the UPOL like a primer).

UPOL has this video on Youtube. where they show different finishes that can be achieved using HVLP and Schutz guns.

I have a couple of questions:

1) What is a Schutz gun? How is it different from a dedicated HVLP primer gun? I ask as I have a primer gun with a 2.5mm tip that I use to spray polyester and other high build primers.

2) Is the UPOL necessary or (since I'll be overspraying with my final color) can I achieve similar results using say a high build primer at low pressure?

I don't mind paying the $50 for the UPOL but I'm only trying to refinish a 6" x 6" piece of metal. I know the UPOL is used a lot for bed liners but it's just a liquid before it's sprayed so I'm not sure what makes it special vs other paints.

Thanks!



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PostPosted: Sat Apr 24, 2021 1:54 am
This is a shutz gun, was actually painting the inside of some brand new fenders with the raptor liner an hr ago
87D81693-16FF-452D-95BD-75F67FC0F3D8.jpeg



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PostPosted: Sat Apr 24, 2021 1:57 am
45 psi gives this texture

739B5F41-D3E3-4952-BBC6-F3276BD459B2.jpeg


35BDE6F7-B97C-48AA-8C81-080E15F74D3E.jpeg

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PostPosted: Sat Apr 24, 2021 8:11 am
I have sprayed quite a bit of UPOL Raptor and bought the kit that included the Schutz gun.
It actually sprays quite well considering what it is.

Used it on the underside and floor of this Jeep seven years ago. Spoke to the owner who now lives in California a few months back and he said it still looks like new and they drive it to the beach regularly.

Windshield Frame Installed.JPG


Left Front Quarter View.JPG
1968 Coronet R/T


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PostPosted: Sat Apr 24, 2021 8:47 am
Uhhhh....if that's all you are doing you could just shop for one of the 7 colors that their newer aerosols come in.... https://www.amazon.com/U-Pol-Aerosol-Be ... 165&sr=8-2
I mean, it's a one time use kind of thing but they work quite well.
As to what's different about Raptor?.... Well, I think it is probably the combo of a high grade polyurethane engineered to work so well at it's mil spec. thickness. I mean it has been around long enough now that I have seen this stuff aged and it is looking pretty great. We started using it under kit cars maybe 8 or 10 years ago as a undercoater/shield against rocks hitting fiberglass. Just saw an old friend's Cobra the other day. Been up under his fenders for 6 years now, texture/color looks like the day he shot it.... It is sold in over 100 countries now...
I just used it on quite a bit of my truck build....
Attachments
IMG_20200923_173655944_HDR.jpg
Used their screw on shutz top gun set at about 70 psi for this texture on bed cover
IMG_20200830_100434656_HDR.jpg
This is over 6061 aluminum
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PostPosted: Sat Apr 24, 2021 8:49 am
Is there any way to buy that stuff in any sort of Bulk? by the Gallon?
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PostPosted: Sat Apr 24, 2021 9:03 am
Well, it is mostly dependent on "kit size." They just keep adding more of those 1 liter sprayable bottles with more hardener.
Here's a pretty good sized kit for example....
https://www.amazon.com/U-Pol-Raptor-Ure ... 893&sr=8-5
I think I caught a sales somewhere last time and got that kit for like $189.....
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PostPosted: Sat Apr 24, 2021 9:11 am
simso wrote:This is a shutz gun, was actually painting the inside of some brand new fenders with the raptor liner an hr ago
87D81693-16FF-452D-95BD-75F67FC0F3D8.jpeg


I know what a Schutz gun looks like. I can use Google :D :D

My question is what is unique/different about a Schutz gun?

How does one differ from a high build 2.5mm primer gun?

Again, my questions are:

- Do I need UPOL to get the texture?
- Can you use a 2.5mm primer gun at low pressure using a primer to get a similar texture?
- Can you spray other than UPOL using a Schutz gun? If so, what and why?

I'm NOT painting a truck bed. I'm trying to match the texture on this pictured 6" x 6" piece of metal.

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PostPosted: Sat Apr 24, 2021 9:35 am
A Schutz gun is just the simplest of the old undercoater siphon guns that have been around since guns were invented. It is just like a quarter inch pickup tube that goes up to a quarter inch or so tube going straight across and "out." No needles, no tips, kind of the "garden hose" of guns. It is nothing like a regular spray gun. I find that I can get just about any look with a Schutz gun and Raptor by going to higher pressures and experimenting with distance from the object. Yes, a dedicated Schutz gun (one with it's own quart or so cup) can spray most any "thick" stuff that wouldn't properly go through a regular gun.
As for that texture I see there, yes, that would be easier for me to get with the Raptor set up, but that's ME. I'm used to working in different finish textures on a daily basis in my work.....
Metal, wood, fiberglass, we work it all... www.furniturephysicians.com We can restore the irreplaceable!



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PostPosted: Sat Apr 24, 2021 10:01 am
DarrelK wrote:A Schutz gun is just the simplest of the old undercoater siphon guns that have been around since guns were invented. It is just like a quarter inch pickup tube that goes up to a quarter inch or so tube going straight across and "out." No needles, no tips, kind of the "garden hose" of guns. It is nothing like a regular spray gun. I find that I can get just about any look with a Schutz gun and Raptor by going to higher pressures and experimenting with distance from the object. Yes, a dedicated Schutz gun (one with it's own quart or so cup) can spray most any "thick" stuff that wouldn't properly go through a regular gun.
As for that texture I see there, yes, that would be easier for me to get with the Raptor set up, but that's ME. I'm used to working in different finish textures on a daily basis in my work.....


Thanks for the above explanation.

Based on the YouTube video from UPOL in my first post you can get a flat texture using a HVLP gun (which begs the question of why you'd use UPOL if you want flat) and a fine texture using HVLP gun if the UPOL is reduced.

No mention of HVLP tip size in above video so I'm not sure how a 2.5mm high build tip changes things.

I appreciate what you're saying above. You have the equipment so obviously you'd use it for best result.

I'm trying to figure out if I need to invest in $50 of UPOL and/or a Schulz gun or if I can use 2.5mm primer gun + std primer or 2.5mm prime gun + UPOL or Schultz gun and regular primer etc.

Maybe I need to call UPOL.

Thanks for the info.
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