Originally Posted by Ezekiel 4:12
A question for you guys. I'm having a serious problem with streaking. I'm using a regular nap roller (not a foam, which i will correct for my MM coats) but i'm curious if this can be rectified during my final three coats, or would i have to start over and go back to the primer stage?
Also, if i bought a cheap spray gun (how cheap could i go?) would i be able to just begin with the last three of MM, or should i start over with that as well?
No need to do that.
Your previous streaking will not manifest itself if two/three lightly sprayed coats of the same paint are applied over the offending surface. For that matter, correctly rolled coats would also cover if the streaks are not actually raised Roller marks.
If the marks are in fact "ridges" then a light sanding will reduce the raised edges and allow for coverage. And BTW, IMO spraying an excellent finish is easier for a Nubee to learn to do with these sort of mixes than is rolling such out perfectly. Only the need for the equipment involved makes spraying less attractive.
Cheap HVLP Guns can work if your lucky enough to get one that does what it's supposed to. I've used both types, and usually the cheapies will work at least a few times. But sometimes they are dismally inept from the start.
I've recently seen some online for under $30.00. Look to:http://www.avsforum.com/avs-vb/showt...=752415&page=4
Post 107 for illustrations of what type of Gun to look for. Harbor Freight sells them the cheapest. Cambell Hausfield is next in line. I got my Ingersoll Rand 270 from Lowes, but any good Gun from a store will cost between $80-$100.00 when you consider that it will usually come complete with a Pressure Regulator. Many of the "cheapies" do not, so always note if one does or does not. Below is one that comes complete and is essentially the same type Gun my photos depict. You'll note the Nozzle Cap is identical to the ones in my photos. Stay away from Guns that have the skinny, Blue twist ring. They all have ineedle/nozzles that do not offer replacement potential, and seldom have enough air holes for atomization. And strangely enough, some of those Guns cost the most. :rolleyes;http://www.nationaltoolwarehouse.com...qx/product.htm
...........and here is an absolute Killer deal on a 4 piece HVLP set-up. get this one and you can spray Primers, then Finish Coats.http://www.nationaltoolwarehouse.com...qx/product.htm
I advocate sprayed finishes because with a little care in the doing, they are by far the best route to take, and always are worth the effort and expense required.
A sprayed finish done right is "to Die for" as far as potential image quality. Getting the Mix thinned correctly, and using the right Tip/nozzle size and the right pressure, and applying the paint with the correct procedure is all that is required, and there's plenty of helpful advice to accomplish those things available if you but ask or search for it.