Originally Posted by Jesse7
I have sponges but they are the smaller hand size ones from 3M. Cant seem to source the bigger ones, so it will just take me longer. I have 120 150 220 and 300 grit, which would be ideal?
Using 150 Grit with a very light touch is best.
Can you explain the 3up and 3 down thing, I'm having a hard time picturing the technique. I get the 3 strokes across the middle thing. Looking at my results this morning I am incredibly happy. There is not much texture. The only thing is it looks like little bits of sand in slight peaks are present now and then. So I think a sand would be worth doing.
6 Vertical strokes ....one going up to just past the top of the Screen, then returning down to the starting point. (...hopefully close to or at the middle of the screen...) Do this 3x for a total of 3 up & 3 down before you move slightly to the side and repeat.
Even taking in the use of smaller sponges, you should be able to sand the entire screen surface pretty quickly and without much fatigue, but then again, you do have a lot of acreage to cover. With the smaller sponges you probably can't do the really long (tall) strokes as effectively, but all the same, try to cover as much distance with each stroke you can as this helps prevent over-sanding any particular area.
I am aiming for the best result. I mean I have put so much time and effort into getting this right, a little drudgery is a walk in the park. And actually at this stage I am enjoying every second. When I first started I was hating it because I was so nervous I was doing it wrong.
There is nothing quite like being proud of what you see yourself accomplishing come together before you. And building up confidence in the doing is a real moral booster.
I think I have 10 coats purely because I was being over cautious due to the mistakes I made early on. So I was spraying very fast and at a further distance than 12" just to make sure I didn't mess it up again. I also probably wasn't consistent with my 60% overlap in the earlier coats.
I think now I could easily paint a screen with much better consistency and confidence. The other reason I did 8-10 is because I didn't have full coverage yet.
Yes...with practice you can push a bit more paint onto the surface with confidence. But then again, the way you went about it really affords the best chance for a near perfect finish.