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Hamiltons RV Website
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Date: 10-24-2012
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Number of Hours: 3.00
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Manual Reference: 6.4.5
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Brief Description: Priming - Stewart Systems - Vertical Stabiliser
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Having completed the alodine coverage of all the parts in the Vertical Stabiliser, I commenced work on the actual primer coating. I used Stewart Systems EKOPrime - ZC Green E7530. Why ZC, I am guessing that it is designed to look like one of the Zinc Chromate primers. Seems a little too green for that, however...
The EKO Primer is a single part product, ie no catalyst. It is water soluble, so the preparation and cleanup is pretty easy, just using water. I had not received my viscosimeter (Complex name for a cup with a hole in it) at the time I did the first batch so I cant tell you exactly the viscocty. However, I added approximately 5% distilled water to the product that came out of the can and I have to say that it seemed perfect. I had purchased a DeVillbis GTI620G Millenium HVLP spray gun. IT came with 1.3, 1.4 and 1.5mm Fluid tips, and I had installed the 1.3. The coverage was fabulous. I ended up with 2 runs in the ribs and no where else. The two runs are purely operator error, not equipement or paint. I started out a bit heavy, there is no denying it. As I progressed through the batch, my approach improved. I was also working on a fairly confined table with a part at a time. I am going to make a frame from plastic pipe, with a chicken wire screen across it for the next attempt. That way, I will not be removing parts to hang them up to dry (contributed to the runs, I am sure).
I didnt do the top rib, as I am still waiting on the VOR parts to come from Aircraft Spruce.
I went with the DeVillbis Gun as I wanted something that could be used later on internal work at least. I will get or build a Bladder to attach to facilitate that.
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DeVillbis GTI620G Millenium
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Primed and Back together again
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Looking pretty reasonable
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