How To Spray Latex with HVLP
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- เผยแพร่เมื่อ 5 ก.ค. 2024
- Details on how I spray latex paint finish on furniture with an automotive style HVLP gun, covering all the questions I get on Instagram about my technique that I learned years ago by pulling bits of information from Charles Neil, Jimmy DiResta and Matt Lane.
![เจอประจำ ตอน เปิดเทอมวันแรก [EP.29]](http://i.ytimg.com/vi/eFK-B836i60/mqdefault.jpg)
Good Info Andrew! I'm going to pick up a few of those fans and filters for the shop.
Thank you, Jon, for all the encouragement behind the scenes!
Izzy Swan has a video explaining how the flow rate of box fans is 5x that of typical shop air cleaner. I made the switch right then and I'll confirm the improvement is shocking how fast a box fan/filter clears the air.
excellent information, good work!
Thank you, Andy! I appreciate any advice you have to offer!!!
Good job, Andrew!
Thank you, Tom!
Thank you! Good info.
Good information. Thanks
Gladly, Dug! Hope you find it useful.
Thanks for the great tips 👍🎅👍
Gladly, Eric! Hope it helps get you where you want to go.
Thank you.
Thank you for the video! I don't understand the reason for running a box fan and filter?
I'd like to breath as little as possible of any atomized finish(es)--latex or otherwise. So, I run fans with filters whenever I spray inside the shop. Additionally, I use carbon-faced filters when I spray oil-based finishes. Thank you!
This is great news! Instead of buying new Airless or HVLP equipment, I can use my own gun. Do you use a latex-based primer? Also, what specific clear do you use and why use a clear for cabinets?
Glad you found it helpful, Peter!
It's worth noting I'm not a cabinet maker, in fact I've only made a few cabinets. So, I don't have a "Standard" primer/paint/clear combo. That said, I do always use latex primer under latex paint.
Here I used 2 or 3 coats of Polycrylic clear gloss for a little extra interior protection since this is a kitchen sink cabinet. I used latex because it won't crack like lacquer does, but latex doesn't have great wear-durability. So, I sprayed water-based clear over it.
This particular cabinet is for my own lake house, so I know we won't beat it up.
Hope that helps!
You made a right choice to use 1.8 for type of paints u use .
Yep. I've played around with many tip sizes & pressures to land on what works well for various applications.
Last week I sprayed very thick acrylic paint with and HTE gun and 1.3 tip, thinned 15%. It worked ok, but I had to crank the dynamic pressure to 45psi to get it to atomize adequately. Anything can be done with whatever you have if you're willing to experiment!
Great video. What extra accessories or gauges did you add to your spray gun?
Thank you! I use an adjustable regulator gauge from Harbor Freight to dial in my pressure. And for spraying in tight spaces I find a swivel fitting is very helpful. You can search "Air Tool Swivel Fitting 360 Degree" on Amazon to find it. Lastly, High-Flo fittings allow full airflow to the spray gun. You'll find them by searching "HIGHFLOWPRO Coupler & Plug Kit." Hope that's helpful!
Are you blowing air at the workpiece? Seems weird like you’d get particulates on the finish. Do you know the number on your air cap? I use a 1.5 tip and a #9 cap with Benjamin Moore paint. I bought a PPG brand paint the other day. It was thicker than molasses. No chance with my setup. I do like the sort of wing it nature of this video. People have to try different things and this is as good of a place to start as any. Cheers!
Thank you, Steve! I'll check the cap number and get back to you. I too get thick paint sometimes and simply thin accordingly until it sprays how I want it to. I absentmindedly positioned the fan here for the video. You're right, typically I'd have it pulling away from the piece and several feet away. My goal here is play around until you get results you're after--it should be fun, not overly complicated & scary!
This is a super vid. Question: I have an HVLP gun with a 2.5 tip that should move paint with ease, but the flow is very slow. I am guessing that the tiny filter at the bottom of the cup is impeding the flow. Does the Finex gun use this filter? I do filter the paint with a 190-micron paper cone filter as it goes into the cup.
I'd assume you're right. Thick paint will have a hard time running through that little in-gun filter, so you have a couple choices: 1. Thin your paint; 2. Remove the filter. I'd verify your dynamic pressure is high enough (25-30psi or higher if you're paint is thick) and try number 2 first since you're using a big tip. If it won't atomize into a fine mist like it should at that point, then I'd thin until it does. Hope this helps, thank you!
I almost forgot, I also filter my finishes before filling the cup and I have removed that little filter from the spray gun.
@@branchandfoundry560 Thanks. Of course I could have just tried removing the filter… Will be experimenting today.
@@thardyryll Hope it went well--let us know!
@@thardyryllny updates on the removal of the filter in your Hvlp gun?
Is it flowing through much better now?
Absolutely educational and hilarious.
Like the comment about us viewers thinking you are a Coke addict after your sniffing in the mic, lol.
Yeah good video..
Keep us laughing and educate us.
Thumbs up!
Thank you! It's cold in my shop in winter and my head is down working most of the time, which makes my nose run...which may make viewers wonder about me--ha! I figured I might as well call myself out before somebody jumped to conclusions!!!
*Fyi I have several videos filmed, just been busier than expected with work for several months now. So, I have not made the time to edit. Please hang in there, I do plan to keep making videos.
All the best, Andrew
@@branchandfoundry560 that's just too funny. After laughing loud for a few minutes I said DAMN this guy made my day...
Hope you make more videos. I'll be watching it just to hear them dark jokes lol. Awesome 😎 😂
I have a DeWalt HVLP sprayer that comes with a 1.5 tip. This is too small to spray latex. I have looked everywhere for a 1.8 tip; do you know where to find one, if this model allows for it?
Thank you for this question! I looked too and do not see parts available for your spray gun...maybe that says something? I will say, replacement tips are almost always expensive--often cost more than the new price of your model. So, you have a couple choices here...
1. Thin whatever paint you're using until it sprays well enough through your 1.5 tip. I've thinned mud-thick paints until they sprayed fine. Turning UP air pressure helps too. Try 30-40psi dynamic pressure.
2. Find a gun with readily available tips. I'd bet you'll never regret this option over the long haul.
*Btw I just bought the HarborFreight Black Widow HTE gun to try because I'm curious about HTE vs HVLP. Hope to make a comparison video about that soon!
Thank you
Gladly! Hope it was helpful.
What happens if you go to a larger 2.2mm or 2.5mm nozzle and don't thin the latex paint as much?
Good question! I'm not sure since I've never tried that. But it makes sense a larger tip would work better with thicker paint. I'd play around with pressure & flow rate to find the sweet spot of desired atomization.
The answer is in the mixture itself not the diameter of the nozzle.
But realistically you will not have to water it down as much the larger the diameter of the nozzle.
There's so many factors in this equation, so it boils down to experience.
Even with my 2+ mm nozzle I like to dilute it with water, so it sprays more flat and provides you with a more professional surface.
It dries a little slower, but can improve the finishing quality of your project.
@@DCMARTIN You go it! Play around to figure out what you like and refine from there. The whole point is it's not as scary as we might think!
What do you think the latex paint with
I thin it with tap water. Nothing special. You can use various products like Floetrol, but keep in mind that kills the sheen--would have to do clear top coat if you want glossy finish.
Who makes this spray gun ?
It's the Finex line by Graco. It's been a great all around utility gun for me.
Did you thin it with water?
Yes, thank you! Like I say in the video, I do thin latex paint with water by feel until it sprays like I want it to. You can also bump the pressure up to around 25-29 dynamic psi for thicker paints. That helps too.
The cheap fan and filter system works great with water base paint but be carful with oil paints they are flammable and the fan is not explosion proof. I would not let it run unless I am in the room
You make a good point, Ray, thank you!
To clarify, I typically have cross-flow ventilation through my shop for at least an hour during & after spraying oil-based finishes--longer if I can. I'd guess that is helpful to disperse volatile fumes?
At the risk of sounding like a moron, it's worked for me for several years. I've also sprayed oil-based paints and finishes atop my downdraft table that uses two box fans with carbon filters many times without issue.
Feels like now I need to experiment to find out what it would take to actually ignite the fumes, because spraying right into a filtered fan does not do it...hmm. Dang, I wish Mythbusters was still around, that might be a good one!
Have you tried using windsheild washer fuild to thin?
I've never heard of that. Does it work? What are pros/cons of that vs. water for latex paint? Thank you!
@@branchandfoundry560 it is a combination of water and alcohol designed to decrease the rate of evaporation so the wiper can clean. It is great for use as a paint thinner it gives the paint time to flow . The blue dye in there is a dye, not a color solid, so it evaporates with the water and does not affect color
@@Obshowersyndicate Thank you for sharing this info!
so what kind of compressor do you have to use?
Honestly, you can make it work with nearly any compressor. HVLP is "High Volume, Low Pressure." The critical thing is High Volume. I sprayed paint for several years with a small jobsite compressor. I just had to stop frequently to let it charge the tank. Now I have a larger compressor, so I can spray more continuously. Hope that helps, thank you!
@@branchandfoundry560 I went and looked at a bunch of these HVLP sprayers and they all say not for Latex so...
@@michaelwas8549 Use what you're comfortable using. I've used the Finex3000 spray gun as shown in this video with great results for several years.
smart
Thank you!
Just a FYI. Those cups to measure the viscosity are a must. Without them you are completely guessing each time you mix. Running a fan over your finished product is a accident waiting to happen. You never want to blow air over wet paint. You are potentially introducing dust or particles to you finish. I’m not trying to be critical, I’m just giving you pointers from what I have learned over the years using a Earlex HVLP set up.
Thank you, Shane! You're right, I simply had the fan there to talk through my equipment on camera. I typically position it several feet away, pulling air away from the piece.
When I used the viscosity cup & timer, I always used it as a baseline and adjusted as needed from there until my finishes laid down properly. One day I decided to streamline the process and ditch the flow cup since, in the end, I was fine tuning by feel anyway. Latex--which we're discussing here--is not fussy at all.
My goal here is to simplify and impress the point, "If it works for you, it's right for you." Sometimes this process feels intimidating for beginners. I want to show how uncomplicated the process really can be 🙂
Could not hear you was that just water?
Yes, I thin latex paint with water. Thank you!
@@branchandfoundry560 Thank you. I am using a mix 50/50 distilled water and Flotrol. I cut the paint around 70/30 flo/h2o with the mix
A really great video but it would have made it perfect if you would have included a little on the spray gun and adjusting the jet etc for real beginners like me. Good info on the size of tip though. Thanks.
Thank you for watching and the feedback! Start with every knob turned wide open. Leave the air & paint flow knobs wide open and adjust the fan size knob as needed/desired--about 12" wide fan is good for flat panels. Maybe a little tighter for smaller pieces, but I tend to leave it alone once I get it laying down paint how I like it...more monkeying around with knobs leads to chasing problems, for me anyway.
That’s not like any latex paint that I spray. Your paint is thin as hell where my latex paint is so thick I can cut it with a knife. Yes I know I need to thin it but coming out of your can, it’s very thin.
Ok. You raise a good point. We can get spray anything from "Contractor Grade" watery-thin paint to something like Sherwin Williams "Duration" that's like canned mud. Regardless of initial thickness, thin until it feels like the right sprayable viscosity. Thank you.
LMAO. Always good if audience thinks you're a coke head
🤘
Sounds like you been hanging with hunter biden😂
Yikes! Head down, working in a chilly shop keeps the nose running 🤧