latex stain spray question

[big bubba]

putting up lattice under porch deck & will spray w/latex stain. understand that some thinning will be necessary for the spray pattern
so talking to the paint specialist @ lowes, rather than using water as the thinner, they recommended their latex base thinner (water base).
1st i've heard on that one. went w/their advice but haven't tried yet. so......what's your take? thx in advance

 

[marchanna]

Brush on paints when sprayed often require a flow enhancing medium. This is because atomization of the paint can cause the particles to dry or to start curing before contact with the surface to be painted.

 

[big bubba]

Brush on paints when sprayed often require a flow enhancing medium. This is because atomization of the paint can cause the particles to dry or to start curing before contact with the surface to be painted.

thanks, & agree actually my question was not the need for thinning, but any advantage of "latex thinner" vs water in that process

 

[marchanna]

Water evaporates too quickly in the air and can cause sags and runs on vertical surfaces resulting from a quick skin-over

 

[big bubba]

Water evaporates too quickly in the air and can cause sags and runs on vertical surfaces resulting from a quick skin-over

never considered, hey thanks on that, lots of surface area on lattice, so will proceed w/your advice

 

[marchanna]

No problem. Glad to help. I have a little experience in this area.

FYI [true] latex is a very heavy molecule. It will not build too heavy of a film before it sags if it doesn’t have sufficient viscosity. You need high pressure to spray and atomize high viscosity. Too quick of a skin over on thick applications will result in sags.

 

[RNeumann]

The product we use is Penatrol. I have now clue why you’d use that on some outdoor lattice. Not exactly needed for that......

 

[big bubba]

No problem. Glad to help. I have a little experience in this area.

FYI [true] latex is a very heavy molecule. It will not build too heavy of a film before it sags if it doesn’t have sufficient viscosity. You need high pressure to spray and atomize high viscosity. Too quick of a skin over on thick applications will result in sags.

so....having said that, i purchased a lvlp cheap sprayer from HF for the job should i have gone higher pressure/volume sprayer for job? have air compressor to handle both thinking simple is best for non commercial work, don't make living at it (i'd starve) thanks

 

[marchanna]

I’m assuming you’re going to apply rather light coats, enough to just wet the surface. Assuming that you should be okay, but there is there risk, depending on how well it soaks in, that you will get blotchiness. If you are applying an opaque stain, let it tack up before you apply a second coat.

It’s always recommended to do a test run on a scrap piece so you can get the feel for it first.

 

[big bubba]

good point using solid pigment dark stain so sounds ok thanks for helping me think the project out
learn something every day as i loose brain cells. best regards

 

[marchanna]

Post some pics when you’re done so we can see how it turned out. Good luck!

 

[Luke'sScreenName]

Never heard of latex stain before. What's the advtage in your application?

 

[big bubba]

actually maybe water based stain is more accurate, though believe it involves latex believe most deck stains are like that these days. putting up lattice around sub deck, sure wouldnn't consider brush! thanks for comment bb

 

[marchanna]

Latex and water based are not synonymous. Latex is the polymer used as the base. Others are Acrylic, polyurethane, etc

The basic properties of water-based coatings will remain the same based on the application; ie wall paint, stain, indoor, outdoor and so on. Diluting a water-based product will affect its drying and curing properties as mentioned above regardless of its polymer base.

 

[Luke'sScreenName]

Definitely heard of water-based stains and water clean-up stains just not latex. Can't imagine how it would penetrate.

Are there such a thing as thing as Latex stains? Or stain with Latex? Thanks.

 

[EddieWalker]

I'm not familiar with anything that you are wanting to do, and I'm at Sherwin Williams all the time, including today. I rarely stain any of the decks that I build because of the waiting time. With the amount of moisture that is forced into the lumber, you can't do anything with it and expect good results for at least four months. How long has your lumber had to dry out?

As for what the people at Sherwin Williams said, I would do exactly as they said just because they know more about what they sell then anybody else does.