Hi Guys,
Okay restoration specialists: Is there any way of restoring the shiny silvery finish to an 066 dome without compromising performance? I have one that is missing some of the finish, otherwise seems to play fine. No dents, it just doesn't look that good. Any ideas?
Peter
What - you don't have a place near to you that does aluminum vapor deposition?
John
You mean spray painting? LOLOriginally Posted by johnaec
What - you don't have a place near to you that does aluminum vapor deposition?
John
An airbrush would do the trick. You can regulate the volume and preasure and put on a very thin coat. A serious scale modler will certainly have one. Know anyone who does RC Cars or Planes??? If they are in a club someone will proabably have one.
Rob
Actually, I think the original process deposited a thin layer of aluminum via vapor deposition in a vacuum chamber. Someone correct me on this...You mean spray painting? LOL
John
Yes I do remember that from the JBL literature of the era. But, I remember a thread somewhere that held that this may have been fancy language for spray painting. I don't know for sure, this is one reason I wanted the opinions of forum members to see if anyone thinks that a restoration using something like spray paint would compromise performance.
Peter
I do know a fellow who races model boats that may be able to assist-I'll have to talk to him.An airbrush would do the trick. You can regulate the volume and preasure and put on a very thin coat. A serious scale modler will certainly have one. Know anyone who does RC Cars or Planes??? If they are in a club someone will proabably have one.
Rob
Peter
Yeah... it is really hi-tech... same technique is used on those "gold plated" plastic trophies.
Peter I have a paint that is used for simulating chrome. I guarantee no one here has used it, (it originally cost $2K per gallon and now is about half that) Anyway it is extremely fine aluminum powder suspended in a fast evaporating solvent. You essentially dust on the aluminum powder and the solvent evaporates on contact. Typically you clear coat on top of it to protect it from being rubbed off. In this case no coating would be necessary as no one should ever touch the surface. This "paint" would add no mass and would restore the aluminum coating.
If you send me your tweeter, I'll re coat it for you.
Widget
If you send me your tweeter, I'll re coat it for you.
Widget
Now please tell me on what other speaker or audio related forum will you see offers like that
If you use an airbrush with paint you will also be adding additional polymers along with the aluminum. (Virtually all silver paints use aluminum powder in a clear paint base.) I am not sure if the acrylic, latex, or urethane polymers would really be such a good thing to put on the tweeter. The material I have will quite literally put a very fine film of aluminum and only aluminum onto the surface.
How long will it take and how many would I do? Don't know, never did one. I would be happy to do one for free. The "paint" does cost $350 a quart and it is almost all solvent so it doesn't go far... I would need to see how much material it takes. As for time required. It will take about 30 min. to apply several light coats. It will also take several minutes to mask the front plate.
Widget
I just took a look at the photo... it might not be a bad idea to coat the whole darn thing. That would mask the oxidation too. The material is so fine it will not obscure the brushing on the face plate. Unfortunately if the oxidation has created pitting, these won't be masked much either.
Widget
Mr. Widget,
I had already decided that your offer is the way to go, and your offer to assist is greatly appreciated. I can use my spare 066 that has a slightly damaged dome during the interim. I can send the tweeter to you this next week, if you would like to send me a PM with your address info, I will get it off to you. I will of course, pay the return shipping as well, we'll need to make an arrangement for that. If you can accept paypal payments that would really make it easy for both of us. I greatly appreciate your assistance, this issue is really the only thing keeping my pair of 4313's from being nearly mint. I'll await your info. Thanks!!
Best regards,
Peter
You are quite right John, and I would like to thank Mr. Widget and the rest of the forum members for their input on this.If you send me your tweeter, I'll re coat it for you.
Widget
Now please tell me on what other speaker or audio related forum will you see offers like that
Best regards to all,
Peter
This is correct. In my past, I worked for an eye glass lens manufacturer that did MIVD (metal ion vapor deposition) onto a polycarbonate lens substrate as an anti-reflective coating.
I found this in a google search: http://www.ipsen-intl.com/pdfs/IVDPaper.pdf
Paying debt to Karma...
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