Originally Posted by aharami
MM, I sent you this PM, but since you get a thousand PMs a day, you might have missed it.
I got the HVLP from gleempaint. I've been reading up on RS-MaxxMudd and I'm still a bit confused as to how it goes on. Do I just mix all the ingredients together, strain it, then spray it with the HVLP?
I combine the Poly / UPW / Water, then add in the Silver & Pearlescense each while constantly power stirring at low speed. The UPW is pretty thick "out of the Can" so using the Poly and Water to thin it first, then combining the relatively thick Metallic-s each in turn into a somewhat diluted "Base" medium, usually means you do a pretty good job of getting everything mixed evenly.
But do not power stir fast enough that you interject excessive air. Your stirring until everything is "mixed" evenly, not "Whipping" until everything is blended.
I've seen people talk about a flat white base, which makes me think I'm missing a step in there. Does a coat of UPW get sprayed on before the mix?
The use of a White Base is to assure that any light absorbed into the paint gets reclaimed to at least some extent. A White Base is better than a Tan or Yellow, or Blue, or almost any color in that respect.
Some while back, when PJs had hopefully 1000:1 Dynamic Contrast, but no real Lumen Horsepower, early Neutral White Screen paint solutions tried Dark Gray or Black Bases, with just enough White applied on the surface to reflect more light than was absorbed. These were screens that attenuated darker projected light even more so, while trying to maintain decent whites. Most "High Power" type screens with gains over 2.0 all have such a "Black Backing" directly behind the reflective layer.
It boils down to if a paint can "cover" and do it all, that would be cool. But the facts are, without the noticeable difference "translucency w/Light Recovery" makes, images produce on a flat reflective surface will always look......well, flatter.
So you do want a White Base. Kilz well applied and sanded smooth is perfectly acceptable. The sprayed coatings go on with 2 Dusters (14" x 3' per sec.)
This is what I've done so far - fixed any imperfections in the wall, 2 coats of Kilz2 primer rolled on with a foam roller. sanded down smooth with a medium grit drywall sponge. I've seen you mention 12" away and spray at a rate of 1' per second with a 60% overlap. Is that still the preferred method?
How many coats should I put on?
Myself, I'd now thin the Kilz and use the result to practice with, applying at least two dusters and two normal coats, at the speed and distance/overlap you mention above. If your two heavier sprayed Primer coats go on right,(...not really heavy mind you....just "heavier than a Duster" coat...) the surface should feel very smooth after it dries. And do let it dry. Overnight if possible.
Kilz and RS-MaxxMudd differ as to how much additional water is needed to thin beyond the initial amount listed. RS-MaxxMudd will be less. The end goal no matter what paint is used that one mixes it to the point where the low viscosity allows it to drain through a Nylon Sock Filter without pooling, while a slow but steady pour is introduced. It looks like tomato soup. A thick soup. But NOT Potato Soup.