Shooting Rustoleum

Kerwin · Nov 8, 2020

Anyone have good ratios of paint/thinner for spraying rustoleum farm/implement and professional paint? Both are a modified alkyd, I believe.

Is it too thick of paint to have decent results in a HVLP gun? (Use a siphon feed instead?)

Thanks!

Stephen Newell · Nov 8, 2020

The ratio would vary from gun to gun. Thin it as little as possible to where it works in your gun. It should splatter a little giving the looks of orange peal initially. It dries so slow it will flow out. Over thinning screws up the sheen and integrity of the paint. For spraying, especially in cool weather I recommend thinning with naphtha. It's a faster drying solvent.

Kerwin · Nov 8, 2020

Thanks for the info. From what I have done so far it does go on with orange peel look but gets better. Do I need to worry about naptha drying too fast before it can flow out?

I'm using a base $15 harbor freight hvlp buy thinking about trying their $50 set.

Stephen Newell · Nov 8, 2020

Naphtha isn't going to speed up the dry time enough to affect the paint job, especially in cool weather. It will just be a little faster.

I use the harbor freight siphon sprayers. I also have their purple gravity sprayer and don't care for it. It might be alright for automotive paints that are thin as water but I wouldn't attempt to spray enamel with it. It atomizes the paint too much. Depending on what you are painting needs are if you are going to buy another sprayer I would recommend their 64 Oz. Professional Air Spray Gun Kit. It would enable you to spray paint in any direction including upside down. It also would be able to spray latex paint well because it pressurizes the pot. They have two different sprayers of that type, one HVLP and a siphon sprayer. If it were me I would get the siphon version. It's also cheaper.

Kerwin · Nov 8, 2020

The pressurized pot setup looks interesting. Will a siphon sprayer produce more overspray than an hvlp?

Stephen Newell · Nov 9, 2020

Yes the siphon sprayer will produce more overspray because it's putting out more volume of paint. The hvlp is suppose to have an extra baffle in them which atomizes the paint more. This would be great to use automotive paint but spraying enamel you are more likely to have lap lines in the paint because it takes longer to deliver the paint to the surface. It's not a drastic difference, I use a pressure pot when I paint cabinets inside a customers house. With a cup gun you can't go inside of a cabinet and spray up in corners and the underside of the shelves.

David G · Nov 9, 2020

Please remember that reducers come in different evaporation rates, slower ones in summer, faster in winter, so check the temperature range. I "normally" do 8-2-1 with my HVPL gone, but I think the standard is 8-4-1.

Goose · Nov 9, 2020

What does it say on the label on the can? That's your best information.

rio4000 · Nov 10, 2020

new member here. i just did my ford 4000 backhoe with rusto. i used to use thinner ... i've painted it 4 times over the 50 years i've had it. somewhere, maybe here, i read to use acetone to thin. worked very well. it doesn't take much ... maybe 5-10% .... but guessing and depends on lot's of factors.

made a nice light gray with smoke gray, white and almond. haven't figured out photos yet. will need to reduce sizes.

Stephen Newell · Nov 10, 2020

You have to be careful using acetone to thin when working with an enamel. The solvent is so hot it can eat into the dried paint and lift it. The paint could wrinkle up like you put paint stripper on it.

dr sportster · Nov 10, 2020

"It atomizes the paint too much" this is a good thing .Define too much. The Iwata rep would laugh at this .

Shooting Rustoleum

Kerwin

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Stephen Newell

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Kerwin

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Stephen Newell

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Kerwin

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Stephen Newell

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David G

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Goose

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rio4000

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Stephen Newell

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dr sportster

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