Rf shielding paint - Jemsite
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post #1 of 19 (permalink) Old 02-02-2012, 05:54 PM Thread Starter
 
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Rf shielding paint

Can anyone suggest a good brand of rf shielding paint and where to buy from. Looking on the web i can only find it in large amounts for around $90
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post #2 of 19 (permalink) Old 02-03-2012, 01:00 AM
 
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Re: Rf shielding paint

Even with shipping from Germany, this might be your deal:
http://www.rockinger.com/index.php?c...&product=07300

13,90 Euros which should be something around 15 to 20 Dollars
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post #3 of 19 (permalink) Old 02-03-2012, 02:09 AM
 
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Re: Rf shielding paint

it is relatively expensive stuff - most places will charge you a fair amount for applying it for you, due to the high cost of materials!

but a litre would last you for AGES!
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post #4 of 19 (permalink) Old 02-03-2012, 04:17 AM
 
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post #5 of 19 (permalink) Old 02-12-2012, 12:12 AM Thread Starter
 
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Re: Rf shielding paint

Thanks guys!
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post #6 of 19 (permalink) Old 02-12-2012, 09:54 AM Thread Starter
 
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Re: Rf shielding paint

I found some going cheap on ebay but its about 30 mls. Any idea how far that would stretch? Is it enough to do 2 guitars?
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post #7 of 19 (permalink) Old 02-12-2012, 12:36 PM
 
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Re: Rf shielding paint

Is there a reason you want to use paint instead of foil?
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post #8 of 19 (permalink) Old 02-12-2012, 12:51 PM Thread Starter
 
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Re: Rf shielding paint

Just seems easier than cutting out bits of foil and trying to cover the back and sides of the cavity
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post #9 of 19 (permalink) Old 02-12-2012, 01:54 PM
 
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Re: Rf shielding paint

Quote:
Originally Posted by hangingmonkey View Post
Just seems easier than cutting out bits of foil and trying to cover the back and sides of the cavity
I've done foil before and if I can do it so can you. Seems cheaper than paint as well. It is much like putting aluminum foil into a cavity... it just molds itself to the cavity.
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post #10 of 19 (permalink) Old 02-12-2012, 06:33 PM Thread Starter
 
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Re: Rf shielding paint

Im sure i can do it but i guess i was just looking for the lazy mans method.

Is one method more effective than the other?
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post #11 of 19 (permalink) Old 02-13-2012, 06:59 AM
 
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Re: Rf shielding paint

I think proper foil gets you a better shield job. Paint can be tricky. You need multiple coats to make sure your shielding is good. There is no way to tell for sure exact how well the metal particles are dispersed throughout the paint. Stir it, shake it, mix the crap out of it and hope for the best. On a side note, you can use aluminum duct tape from somewhere like Lowes to shield. It's cheaper than copper and works just as well so long as you don't have to solder anything to it. Solder doesn't like aluminum.
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post #12 of 19 (permalink) Old 02-13-2012, 12:56 PM
 
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Re: Rf shielding paint

if you're only doing 2-3 guitars, foil. 30,000? paint.
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post #13 of 19 (permalink) Old 02-13-2012, 02:52 PM
 
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Re: Rf shielding paint

Aluminum tape, used in AC ducting. Works awesome, you can apply multiple layers quickly and easily... a small roll will cost $5-$7 and will last for multiple guitars. Also good for shielding on the back of a pickguard or apply to the control cavity covers on the back.
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post #14 of 19 (permalink) Old 02-13-2012, 03:49 PM
 
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Re: Rf shielding paint

Foil is actually easier than paint.

The paint is thick, messy, dries slowly and takes many coats to be effective. And even then I do not believe it produces a better cage than copper foil at all. The shielding paint just does a poor job, and it breaks down over time rather quickly.

The foil on the other hand is clean, very effective and nearly fool proof. Add in the fact that it is faster by about a factor of six and there is really no choice between the two. Even if the adhesive fails after years you are still left with a fully functioning faraday cage, something that can not be said for the paint.

It also costs about 4xs more in materials to shield with the inferior paint.
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post #15 of 19 (permalink) Old 02-13-2012, 04:26 PM Thread Starter
 
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Re: Rf shielding paint

Thanks for the advice guys. Sounds like foil would be the better option. Ive never used foil before. Do i need to add a drop of solder between each of the strips to make sure that all the pieces conduct to ground?
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