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will my sprayer work for primer and trim paint?

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Forum topic by AAANDRRREW posted 11-08-2016 02:51 PM 1300 views 0 times favorited 29 replies Add to Favorites Watch
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AAANDRRREW

210 posts in 1006 days


11-08-2016 02:51 PM

Hello all,

I picked this sprayer up last year because I had read somewhere that it actually wasn’t a bad sprayer for poly and such, once you “tune” it up…

http://www.harborfreight.com/20-oz-high-volume-low-pressure-gravity-feed-spray-gun-47016.html

I have yet to actually use it though. I’m in the process of painting trim and doors for our new home and I thought about using it. We hired a friend who’s a painter to paint the rooms and help with the trim some (the trim is installed). He told me that the primer I’m using (Zinzer Cover Stain) and paint (Hallman Lindsay Aqua Alkyd) is too thick for the gun and will clog or splatter. He said it will work find with automotive paints (becuase they are thin) and poly, but not the paint. Would you guys agree?

On the back of the Cover Stain primer it says in capital letters “DO NOT THIN” – so I’m guessing if I do thin it, it loses some of its properties. I can’t remember if the paint said the same. So, think I’ll be ok using it or should I just stick to my brushes and rollers?


29 replies so far

View ScottM's profile

ScottM

565 posts in 1980 days


#1 posted 11-08-2016 03:43 PM

Just try it. First without thinning. If that doesn’t work, then start thinning it down a little at a time keeping track of your mixture until you get the results you want. Of course assuming that’s possible.

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Harry

80 posts in 1014 days


#2 posted 11-08-2016 04:00 PM

I’ve tried using a HVLP gun with house paint and it won’t work without thinning it a lot. I was just using it for painting small items (RC aircraft) and ended up thinning with water and windex and it worked great with several coats. You need an airless to use house paint but with the trim already installed, that would take some time masking.

-- Harry - Professional amateur

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cabmaker

1621 posts in 2643 days


#3 posted 11-08-2016 09:38 PM

You wont be happy with prime and paint attempts

You will have somewhat of a chance if you cut the material about 50/50…but then you will need so many coats that….well just get an airless and be done with it.

Don’t expect to buy a decent finish gun for 15.00

View Kelly's profile

Kelly

1821 posts in 2778 days


#4 posted 11-09-2016 02:06 AM

This is FAR from accurate. I have an Accuspray and it doesn’t need much, if any thinning at all. My four stage Capsprayer needs about a quarter cup of water in a quart and it does fine.


I ve tried using a HVLP gun with house paint and it won t work without thinning it a lot. I was just using it for painting small items (RC aircraft) and ended up thinning with water and windex and it worked great with several coats. You need an airless to use house paint but with the trim already installed, that would take some time masking.

- Harry


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Harry

80 posts in 1014 days


#5 posted 11-09-2016 02:54 AM

NOPE, this is accurate for what “I” have experienced using a cheap HVLP gun.


This is FAR from accurate. I have an Accuspray and it doesn t need much, if any thinning at all. My four stage Capsprayer needs about a quarter cup of water in a quart and it does fine.

I ve tried using a HVLP gun with house paint and it won t work without thinning it a lot. I was just using it for painting small items (RC aircraft) and ended up thinning with water and windex and it worked great with several coats. You need an airless to use house paint but with the trim already installed, that would take some time masking.

- Harry

- Kelly


-- Harry - Professional amateur

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Kelly

1821 posts in 2778 days


#6 posted 11-09-2016 07:07 AM

I remains it’s far from accurate, since other than cheap systems don’t have a need for extreme thinning. Shoulda/Coulda qualified that up front then. To be more specific, you should say what gun and driver you have. For example, is it a single or double stage toy, or a three stage or better.

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AAANDRRREW

210 posts in 1006 days


#7 posted 11-09-2016 01:21 PM

So, what I’m gathering is even if my gun can do this without much thinning, I may be still better off brushing or getting a better gun?

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shawnn

68 posts in 1199 days


#8 posted 11-09-2016 02:09 PM

I used this one http://www.harborfreight.com/air-tools/paint/professional-spray-gun-kit-93312.html to spray interior paint and Kilz primer with good results. I didn’t thin it but the next time I’m going to use about 10% Flood Penetrol. I think the spray gun nozzle size is the most critical feature for what type of liquid you’re spraying. Mine has a 1.8mm nozzle that worked good for paint, but I would need a smaller nozzle to spray thinner material.

View lndfilwiz's profile

lndfilwiz

94 posts in 1434 days


#9 posted 11-09-2016 02:36 PM

I purchased the 60600 airless spray system and have used it for exterior primer and paint. Very satisfied with the results. I belong to the Insider club and got the kit for $169. I figure it has paid for itself on this one project for the time I saved not brushing or rolling.

-- Smile, it makes people wander what you are up to.

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Carloz

956 posts in 425 days


#10 posted 11-10-2016 02:07 PM


On the back of the Cover Stain primer it says in capital letters “DO NOT THIN” – so I’m guessing if I do thin it, it loses some of its properties. I can’t remember if the paint said the same.
- AAANDRRREW


..start thinning it down a little at a time keeping track of your mixture until you get the results you want.
- ScottM

Just keep asking advice on these forums. People will tell you that you need to thin even if the manufacturer states DO NOT THIN in large letters :-)

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ScottM

565 posts in 1980 days


#11 posted 11-10-2016 02:35 PM

What will it hurt to just give it a try on scrap???

View OggieOglethorpe's profile

OggieOglethorpe

1276 posts in 1944 days


#12 posted 11-11-2016 01:26 PM

What will it hurt to just give it a try on scrap???

I’m always amazed more don’t do this. ;^)


Just keep asking advice on these forums. People will tell you that you need to thin even if the manufacturer states DO NOT THIN in large letters :-)

Because it depends on the product. Some products say that to meet VOC regulations. It’s often OK, and sometimes preferable to thin these products. For instance, solvent lacquers…

Others are products that chemically crosslink and adding too much thinner will move the molecules too far apart and they won’t properly cure. A good clue is where a product states “Do not over thin”, or “Do not thin more than xx%”. These products usually include waterbourne clears and latex paints.

Thinning waterbourne products often has better results with a product called Floetrol instead of water. The OP should try a test on scrap or extra trim, adding 5% at a time of Floetrol. Keep adding until it either sprays well and cures properly (pass), or fails to cure or cover properly (fail).

I’m guessing the gun in question will fail, but anyone who cares about finishing should take the time to play with the tools and material combinations they’ve never used before attempting the actual work. ALWAYS…

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AAANDRRREW

210 posts in 1006 days


#13 posted 11-11-2016 02:57 PM

I agree, I would test it first. That being said, I bought this gun to learn the spraying technique, and mainly, it was for poly – I just haven’t gotten around to trying it out yet.

I will take a peek at some of the other sprayers out there, but, I see Menards has some wagner sprayers in the 100-250 range – would these be more suitable? I do have alot of doors to do, and although its not the worst to hand apply the primer and paint, it is time consuming. I’d love to be able to prep like 5 doors and spray them all at once instead of one at a time…

View OggieOglethorpe's profile

OggieOglethorpe

1276 posts in 1944 days


#14 posted 11-11-2016 04:04 PM

I have a Fuji four stage HVLP that will spray pudding if I wanted… ;^)

I can’t comment on the other units, I’m sure if you search or start a thread on a specific model you’re interested in, there are folks here who own it. My Fuji is about 15 years old. Since then, a lot of less expensive yet very capable systems have been introduced.

Also look around LJ’s for someone with the screen name “Earlextech”. He’s an Earlex rep and very knowledgeable about HVLP systems in general. The info I’ve seen him share has been very open and honest, regardless of brand.

View Carloz's profile

Carloz

956 posts in 425 days


#15 posted 11-11-2016 09:52 PM


I have a Fuji four stage HVLP that will spray pudding if I wanted… ;^)
- OggieOglethorpe

Does it work with latex paint without thinning ?

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