I had the day off from work and had some time to spend with the Grex Tritium TG3 airbrush I recently purchased. The basic kit included the TG3 gravity-feed airbrush, three interchangeable paint cups - 2ml, 7ml, and 15ml, one needle and one crown cap. The caps are magnetized for easy on/off switch outs. The magnetic, spare needle crown cap sticks to the back of the rear handle cap - NICE feature. A tool/wrench is also included for switching out the caps and general disassembly. The total weight of the unit is 6.4oz.
The airbrush comes preset from Grex. To assist with consistent line widths, the Tritium has a Pre-set knob at the back of the airbrush. Turning it clock-wise limits the trigger and how much amount of paint sprayed. Completely turning it clock-wise will stop the trigger entirely and lock it shut. Turning it counter-clockwise, allows for more/unlimited paint and trigger extension. Turning in completely counter-clockwise allows unlimited trigger control.
My entire setup was Badger to this point. Fortunately, Grex has taken it upon itself to make a host of adaptors to connect their Grex product to other vendors. Bravo! The price was a bit hefty at $14.00 for the AD14 adapter for Badger, but when you need it you need it right? I also bought an additional paint nozzle/needle kit in .5mm. Again, a bit hefty on the price tag at $40 for a needle and tip, but they're good to have on hand. After getting the airbrush hooked up and running, I filled up the paint cup and commenced spraying using the factory installed .03mm set up on a scrap piece of 6"x6" styrene. The pistol-grip style trigger is very responsive. With varying air pressure, and using the split crown cap, I was able to get a smooth hairline without any problems at all. Likewise, I was able to control the spray very well while testing basic airbrush strokes like starting out small to a wider line, a spiral starting in the middle with a hairline and working outward to a wider spray. Every stroke with the airbrush was very fluid and controlled. The Grex Tritium also feels very balanced and natural when using it due to the pistol-grip design - even with a full paint cup. I then switched out the needle and tip for the .05mm for my current project which took about 10 minutes. With a full cup of paint and a larger tip, I made quick work of laying a base coat for a 1/350 scale aircraft carrier flight deck. The Tritium lay down consistent, even paint strokes with the larger tip and left an even paint layer.
Overall, the Grex will quickly become the new workhorse on my work bench. The $200 price might be a turn-off to some people, but it is well worth it. The AD14 adaptor to convert the unit to my Badger set up worked perfectly. I plan to buy another Tritium in the future for sure. In addition, the customer service from the Grex company has been nothing short of superb. I accidentally bent the tip of my needle. Upon contacting them, I was given information on where to buy a replacement tip, but was also given a recommendation on how to try repairing it first before buying new. You don't get that information every day. About the only real down=side I can mention is the price of the accessories and replacement parts. A trigger tension spring would also be nice to have for individual feel/comfort. Bottom line, is that this unit is what Grex claims it to be and performs as such. The price is a bit high, but in this reviewer's opinion worth every penny.