Polyurethane Overspray to Cover Neck Break

[Benjamin Brockway Strings]

What airbrush are you using?

I have the Badger 150 and it’s one of my most used tools. I haven’t been able to make friends with a gravity fed airbrush or any other airbrushes yet.

I personally would use the Badger and spray color and lacquer on that. If there’s a poly finish that gets good results I am curious.

[Benjamin Brockway Strings]

I’ve used the Prevel sprayer in a pinch if I’m remote loothing. It can work but it’s not ideal. The Badger 150 will atomize the finish much better which will help the shades of black blend together better.

[Andrew Framsted]

I have the PointZero one from the Ding Kings parts list. The first/last time I attempted to use it, I was using Mixol pigment with lacquer. I couldn’t even get it to come out of the nozzle. Maybe there was too much pigment in my mix? Not sure. I ended up using the Preval and it worked decently.

[Benjamin Brockway Strings]

I heard the Mixol pigments need to be filtered a bunch. It may have clogged the gun. I got the PointZero as well but it didn’t work out and quickly went back for the Badger. I’ve had it for over a decade and will have to replace parts on occasion but it’s basically become a part of me.

[Andrew Framsted]

Can you elaborate on how one would filter a pigment tinted lacquer for spray use in an airbrush?

I’ll pick up a Badger 150 and give it a try. Thanks for the recommendation.

[Ian Davlin The Looth Group]

Im curious about the issues with the point zero, I haven’t ordered one in a while, but the last few I ordered served me great. Something might have changed.

[Andrew Framsted]

I’m also a complete newbie with an airbrush trying to use the thing from watching your tutorial. I think Ben is onto something about straining the pigmented lacquer. But also seeing you mention the PointZero is meant for tiny lines, that changes my expectation and understanding of it’s capabilities.

[Ian Davlin The Looth Group]

I haven’t heard of needing to strain Mixols, but it makes sense. One of the downsides to using a gravity feed for pigments is that it will settle particulates to the bottom of the cup.

With all pigments, having more particulate than the solution can suspend, is part of the problem too. Straining can also solve this problem, although maybe going to the opposite end by making the color more dilute. I know that if you mix Blendall powders into lacquer, that does need to be filtered. Just haven’t seen it with Mixols.

[Benjamin Brockway Strings]

My issue was I didn’t have the correct adapter for my air compressor setup 😜

I still have mine and I’ll give it another go. I think the gravity feed airbrushes might have better control with fine line work

[Benjamin Brockway Strings]

Pour through one of these: TCP Global 50 Pack of Paint Strainers with Fine 190 Micron Filter Tips – Premium “Pure Blue” Ultra-Flow Blue Nylon Mesh – Cone Paint Filter Screen https://a.co/d/2qadpN6

a.co

Amazon.com: TCP Global 50 Pack of Paint Strainers with Fine 190 Micron Filter Tips - Premium "Pure Blue" Ultra-Flow Blue Nylon Mesh - Cone Paint Filter Screen : Tools & Home Improvement

Amazon.com: TCP Global 50 Pack of Paint Strainers with Fine 190 Micron Filter Tips - Premium "Pure Blue" Ultra-Flow Blue Nylon Mesh - Cone Paint Filter Screen : Tools & Home Improvement

[Benjamin Brockway Strings]

I’ve never used Mixol products. I use Transtint and Colortone dyes but recently ran out of Colortone white which has been discontinued. Looking into Mixol products, I read the thing about having to use more of it and filter it well or it will spit chunks. I have no hands on experience with Mixol products and am still searching for white pigment. As for Badger 150 vs. PointZero. The Badger is more expensive and it’s not gravity feed. I’m certain there’s a good reason Ian recommends the PointZero gravity feed style but I got my hands on it and due to a time crunch decided I wasn’t ready for the learning curve and went for my trusty 150 which is worth looking into even just to have the two styles if you’re doing a good amount of finish work. You can open up the 150 enough to finish a neck or a smaller instrument but also shoot pretty narrow lines for touch up. And you can take it apart easily to clean it out and replace parts forever it seems.

[Ian Davlin The Looth Group]

One thing I would say about the point zero that I use is that it is meant for very, very small patterns. If you run it wide open to try to use it as a small spray gun, kinda like the old Pasche or Badger siphon feed guns can do, it’s going to clog up the nozzle area. By small patterns I mean about the width of a large sharpie pen line is about as wide as you want to go.

[Kokotele Guitar Works]

I’m curious to know how you blend the clear coat into the existing poly without witness lines. I’ve never managed it without having to clear coat an entire section. Masking at the neck joint would work well for this repair.

Robbie O’Brien demoed a spot repair of a waterborne finish he uses, and after polishing he had witness lines and essentially said “you can’t make this repair invisible so I’d just overspray the whole surface.”

I wonder how autobody shops do it?

[Ian Davlin The Looth Group]

I’m going to give some advice, but it should be noted that I don’t work on poly very often and this move involves taking the manufacturer of a lacquer product at their word on the application.

1. I would use Mohawk Ultra Bond mixed with black pigment.
2. I would then seal that in with Fill n Finish thin by doing a thin wipe on finish (ask about that if you don’t know.
3. I would spray over the area with the Mohawk Ultra Bond of the correct sheen
4. I would avoid the temptation to futz with the layer lines. There will be layer lines.

mohawk-finishing.com

Mohawk | Ultra-Flo Ultra® Bond M102-0550

Ultra-Flo Ultra® Bond

[Andrew Framsted]

Awesome. Thank you as always