#1
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Text removed as information is no longer current
Text removed as information is no longer current
Last edited by Stuart Fedak; 22-10-17 at 23:36. |
#2
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There are some people with reservations about working with chromate primers, similar to the problem getting honest chromate treated hardware. For more info, consider looking at forums about painting aluminum boats or airplanes. eg. http://forums.iboats.com/forum/boat-...e-marine-paint
http://www.practicalmachinist.com/vb...r-coat-214482/ http://www.aircraftspruce.com/menus/cs/primers.html http://www.awlgrip.com/support-and-a...rt-advice.aspx I haven't used any of these products but was investigating becaused the 15cwt radio body is aluminum. When the time comes, I may need to draw on the knowledge in the aircraft refinishing shop at work. |
#3
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Aluminum Pretreatment
Stuart
Phosphate pretreatment works very well for Al - used in the car industry same as for steel. All Ford trucks have had Al hoods for 15 years at least and no paint adhesion problems. Puts a micro layer of phosphate crystals on the surface which give great adhesion. While I was in the States I used a Blue Lightning phosphate product - not sure of brand names here in Canada. You only need to brush it on or dip. Surface has to be thoroughly cleaned first of course. The yellow or green chromate is great but hexavalent Cr not allowed any more at least in the car industry. Maybe the aero folks are still allowed to use it. |
#4
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Quote:
EDIT to add detail: You don't need a lot of paint on the eraser. I actually daubed the eraser lightly on paper first and then touched it to the raised letters. Provided the letters are not damaged badly this works really well. 524 with the sunken in letters would be a different story which is why cleaned mine well and just left it alone.
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Gone but never forgotten: Sgt Shane Stachnik, Killed in Action on 3 Sept 2006, Panjwaii Afghanistan |
#5
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Not the greatest pics, but you can see the results of the above method.
__________________
Gone but never forgotten: Sgt Shane Stachnik, Killed in Action on 3 Sept 2006, Panjwaii Afghanistan |
#6
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I didn't actually strip the old paint from mine. I did a light scuffing with Scotchbrite pads, wiped down with Acetone, and then sprayed with Gillespie 24087 Semi-Gloss OD. I suppose one could also go with 383 CARC Green, but 90% of the radios I used were still in Semi-Gloss OD by the time the TCCCS started arriving. While I'm happy with the end product, I feel like I should drag them through gravel or something as no radio I ever handled from that era looked this fresh
For sunk in letters there are a couple options. You can spong the paint over the letters, let the paint tack up for a few minutes, and then wipe away the excess with an acetone soaked cloth. Looking at NOS Comms bits, this looks like how it was done at the factory as I could actually see faint smudges from the excess paint being wiped away. Alternatively, you could get a fine point white paint pen from Michaels or similar and go that route. I'd definitely be curious to see how my installation is working. Everything powers up and receives fine (I used to tune in Range Control when I was in Gagetown), but I have no idea if everything transmits. Aside from confirming that the 524A fan spools up when keying the mic, I've attempted to communicate with anyone.
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Gone but never forgotten: Sgt Shane Stachnik, Killed in Action on 3 Sept 2006, Panjwaii Afghanistan Last edited by Scott Bentley; 21-02-15 at 16:47. |
#7
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The Gillespie paint isn't terribly expensive, but the process of getting it is. I think my rattle cans came from Rapco. I had it shipped to the Ogdensburg NY UPS Store as the UPS fees to have it delivered in Canada were significant enough to justify the 2hr round trip to the border. I used it for all my ancillary equipment like the radios, pioneer tools, etc.
I have a few cans left, but I still need to paint the underside of my hood to match the rest of my engine compartment. If you're willing to wait a little bit, I may be able to help you out. I need to find the case of cans and count how many I have left.
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Gone but never forgotten: Sgt Shane Stachnik, Killed in Action on 3 Sept 2006, Panjwaii Afghanistan |
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