tip sizes for trim spraying - Page 2 - Contractor Talk - Professional Construction and Remodeling Forum

Workaholic · 03-08-2007, 05:41 PM

Quote:

Originally Posted by AAPaint

Interesting. I could see a 212 double orifice tip for latex, but a regular 211? Does it come out spitting? Does it even atomize properly? Using a 211 for latex goes against pretty much everything I've ever learned. .011, .013 sizes are usually for thin stuff like stains, .015 .017 are for latexes, and .017 or .019 are for things like lacquer and epoxies.

I have been using a 211 for years on oil, switched to latex and a 211 still works great been using it for latex for some time now. No spitting no problems, a great trim tip.
We used to spray high gloss industrial enamel, no thinning of that material which is a lot thicker than latex, 211 has always been a dependable tip.

AAPaint · 03-08-2007, 05:49 PM

What I often wonder is this....what is the point of so many different tip and orifice sizes if you just spray whatever out of 211's? This is not the first time I've seen or heard this, but it's interesting.

Brushslingers · 03-08-2007, 05:59 PM

The tip size simply governs the amount of paint applied/shot. An 11 thousands of an inch tip is smaller than a 17 thousands, so it can slow application rates... combined with the fan size you can pick or choose how much and how fast paint is applied... most use a .211 since with a little practice at 6 inches, a 4 inch spray with a smaller orfice makes it a little easier to control and keeps down heavy spots without having to go to your pump for pressure adjustments.... likewise the 1024 makes ceilings... well, done.

AAPaint · 03-08-2007, 06:12 PM

I was under the impression there were certain orifice sizes to ensure that different products atomize properly. I was taught to use pressure and orifice size to make sure you get an even spray pattern and proper atomization of all the paint flowing through the tip.

Brushslingers · 03-08-2007, 06:24 PM

Same principle without looking at the can. Depending on the pump size you can blow and go with the proper tip, or fine tune it. I normally carry two tips in my pocket for instance... when I am spraying I will use a 517 to spray ceilings and walls and swap to a 211 to hit window returns and trim, depends on how fast you move your arm. You are supposed to be able to change the pressure at the pump to do the same thing but, I just grew up that way. In contrast certain fliuds, like stains, I do regulate slightly smaller orfice sizes to insure a good atomization but I go up in fan size.

Can comment, most paints actually do tell you what size tip to use in the specs.. some on the can, some on the sheets.

AAPaint · 03-08-2007, 07:42 PM

Yeah, that's what I'm more familiar with. The coating determining the orifice size.

remodeling joe · 03-08-2007, 11:56 PM

well, after reading all of the great advice i began using the 211 tip on all trim and doors and it worked out great. in the beginning; since i'm new at spraying; i began with a 214 fine finish tip and it just blew too heavy. but the guys here pointed me in the right direction.
thanks alot guys.

Dorman Painting · 03-11-2007, 07:21 PM

The 211 works great with latex and the green 210 works even better IMO. It's hard to find the green 210 though, the 211 which is a black colored tip is readily available. I use my 440 titan and my little spraytech and have no problems. I even sprayed my bedroom furniture that was barewood with stain and poly using my airless, turned out great.