Originally Posted by curttard
Bummer. But isn't the stock needle what everyone else here has been using to great result?
Yep. But just like the original Wagner Control Spray, which also came with a 1.5 mm Needle, produced a finer mist (...and somewhat less need for the extra speed Dusting involved...) the use of a smaller Needle in a Graco also helps avoid the development of excessively thick coats, which can lead to texture-related issues such as Orange Peel and / or Runs.
These "Paint application" issues are things that can be corrected, things that have no bearing on the validity of the paint application's performance if elliminated. As such, it must be left up to the DIY'er to decide if they want to take advantage of them. Over the last several years of using / recommending the Electric HVLPs (Wagner CS - Double Duty - CS-Plus / Max) when the smaller Needles were dropped by Wagner in favor of the 2.0'mm to allow for heavier bodied paints (Latex) to be used, that is when you have seen an emphasis placed on "Dusting" take more and more prominence. I personally have at least 3 older 1.5 mm Wagner Front End Spray Kits that I've used with the separate Turbine / Hose units....to excellent effoct BTW...but since no one else new to the scene can do so, I've opted to cease using them in my own efforts since 99% of what I do I want to be reflected in the actual advice I give other aspiring DIY'ers.
Hence the need to focus on the "Duster" technique. But it doesn't take much "User Error" to have even a Duster Coat get too much paint up onto the surface when these Guns can output so much paint, especially when the paint is thinned to allow for a maximum Vertical Spray pattern.
The Graco's introduction to the Scene simply helped bring down the price of using the "Spray Technique" down even further, but it did not offer any solution to having a 2 mm Tip. Now...at least until the sub-$40.00 Gracos' are all gone, the availability of 1.5 mm & 1 mm Needle Kits from Erlux (Parent Mfg of the Graco) takes us back to being able to assure the DIY'er of a almost Glass-Smooth Flat finish. Especially if one continues to utilize the Duster Technique, albeit at a slightly reduced speed (...but maintaining the same distance...)
With Practice & Patience, the spray performance of either a Wagner or Graco using 2mm Tips can be held up as being quite acceptable. But as previously stated, if the smaller Needles are available, and the combined price of a Graco and a Needle Kit can stay at-below $60.00 or so, then the extra confidence that is enabled when offering up such a paint application method is well worth the additional expense...and the slight risk of losing the interest of really tight-budgeted DIY'ers who can accept $35.00 extra expense, but whom might waffle at $60.00
I was going to give it a couple weeks to cure first to be fair.
Well that's mighty fair indeed, however as you can see in my recently offered shots on the 106" Tab Tensioned Screen Thread" show, taking shots just 2-4 days afterward doesn't weigh too heavily against observing what is....and what is not possible.
Paint-induced texture is another thing altogether. Usually, if such is going to be reduced via drying, that happens between coats because Drying is hastened using Heat / or Fan aided clean forced air assist. Such methods help shrink bumps due to the contraction of the paint. Without such "hastened drying" the "Bumps have time to get "set" and only sanding and a thin re-coating will get rid of such texture. The one good thing about waiting 2 weeks or so? The paint will sand down easier and more evenly than will semi - soft uncured paint.
I'm sure you can make some very appropriate and fair determinations that take into account texture not related to the actual paint but die to application. Some cannot...but you seem to be a more analytical and unbiased sort than others. I / we all appreciate that sort of open mindedness, especially when you have to deal with any "end-user" related issues.