Quote:
Your foam roller is not laying down enough paint. I've had very good application results rolling these mixes (except for Canadian Gray) with a 1/4" nap roller on DoAble test panels and on 2mm mylar that I duct taped to DoAble test panels.
Here's how I've been rolling these with a 1/4" nap roller: load the roller, roll it in the pan a few times, roll it on a board for a couple feet or so to distribute the load on the roller and to get it about half loaded and then roll on the screen up and down over a 1 width section while over-lapping the previous section. Use medium pressure for the first 3 up and down passes and then very light pressure for another couple up and down passes when over-lapping the previous section. The "dry roller" technique will work too and should be done if needing a thin coat. It's basically the same as I just descibed except you unload more of the paint onto a separate board before rolling the screen. The "dry roller" technique may be best if you're trying to make use of a reflective base.
Also, I've found these mixes apply best on a very smooth surface. If rolling 3 coats of UPW high gloss with a foam roller got you a smooth base, then you're good. I know getting 3 coats of just UPW high gloss really smooth with a 1/4" nap roller is tough or impossible (for me). One way to help get a smooth high gloss base would be to use Floetrol with the first coat(s) and sand each coat except for the last one. Alternatively, I think pb_maxxx suggested mixing in minwax and water. Another way at this may be to use a white 1/8" thick white tile board for a substrate and reflective base. It may work well since it's smooth and reflective, and it would be easier than rolling UPW high gloss.
| Originally Posted by dave1969 DIY paint mixes look blotchy. Im using biglyles 12 part mix over 3 coats of UPW high gloss. Ive put on 4 coats of the 12 part mix allowing it to dry over an hour on each coat. I can still see the UPW high gloss base coats coming through. Im using a high dense foam roller on a 3'x3' test panel of polywall. Ive painted both sides of the poly wall with the same results. It just doesnt seem to cover that well. If i sprayed it im sure it might seem better but dont have a sprayer. Am i doing something wrong? Is anyone else having the same problems with DIY mixes? |
Here's how I've been rolling these with a 1/4" nap roller: load the roller, roll it in the pan a few times, roll it on a board for a couple feet or so to distribute the load on the roller and to get it about half loaded and then roll on the screen up and down over a 1 width section while over-lapping the previous section. Use medium pressure for the first 3 up and down passes and then very light pressure for another couple up and down passes when over-lapping the previous section. The "dry roller" technique will work too and should be done if needing a thin coat. It's basically the same as I just descibed except you unload more of the paint onto a separate board before rolling the screen. The "dry roller" technique may be best if you're trying to make use of a reflective base.
Also, I've found these mixes apply best on a very smooth surface. If rolling 3 coats of UPW high gloss with a foam roller got you a smooth base, then you're good. I know getting 3 coats of just UPW high gloss really smooth with a 1/4" nap roller is tough or impossible (for me). One way to help get a smooth high gloss base would be to use Floetrol with the first coat(s) and sand each coat except for the last one. Alternatively, I think pb_maxxx suggested mixing in minwax and water. Another way at this may be to use a white 1/8" thick white tile board for a substrate and reflective base. It may work well since it's smooth and reflective, and it would be easier than rolling UPW high gloss.
