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Alembic Club » Owning an Alembic » Troubleshooting » Archive through December 18, 2006 » Shielding paint « Previous Next »

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Username: sricabla

Post Number: 33
Registered: 3-2003
Posted on Tuesday, March 28, 2006 - 10:27 pm:   Edit Post

Where do you get your shielding paint?
Senior Member
Username: palembic

Post Number: 2359
Registered: 9-2002
Posted on Tuesday, March 28, 2006 - 10:42 pm:   Edit Post

Hey ...THAT is a question I always wanted to ask but never dared to!

Intermediate Member
Username: crgaston

Post Number: 148
Registered: 11-2005
Posted on Tuesday, March 28, 2006 - 10:49 pm:   Edit Post

Courtesy of google...,_pickups/Supplies:_Shielding/Conductive_Shielding_Paint.html
Intermediate Member
Username: crgaston

Post Number: 149
Registered: 11-2005
Posted on Tuesday, March 28, 2006 - 10:51 pm:   Edit Post

Although, foil tape from Home Depot or Lowes works pretty well, too.
Senior Member
Username: jacko

Post Number: 585
Registered: 10-2002
Posted on Wednesday, March 29, 2006 - 3:40 am:   Edit Post

Also here for european users ;-)

Senior Member
Username: bassman10096

Post Number: 866
Registered: 7-2003
Posted on Monday, April 03, 2006 - 9:48 am:   Edit Post

Most of the techs I've talked to say foil is more effective for noise suppression. I'm not an expert, but when I put foil in a single coil bass that had previously been insulated (and properly grounded) with Stew Mac paint, the noise problem cleared up completely. I also suspect that insulating paint may have a greater degree of quality variation, depending on the metal in the paint. On the other hand, I've read procedures recommended by otherwise credible luthiers that claim to use ordinary aluminum foil with good results. Go figure. I'd love to hear anyone else's insights into guitar/bass insulating materials.
Intermediate Member
Username: dfung60

Post Number: 152
Registered: 5-2002
Posted on Monday, April 03, 2006 - 11:16 am:   Edit Post


Foil is definitely more effective as a shield than the carbon conducting paint that you buy for guitars. The "good stuff" is equal to foil, but is really expensive ($150+/liter). This stuff has metal (copper, silver, or aluminum) in it and it's what you used to see inside the cases of plastic computer cases (if you ever saw the inside of an old Mac, for instance). It's sprayed in a very thin film, and in more modern electronic stuff that has a non-metal case, it's vapor deposited as part of the case manufacturing process.

Conductive paint is a lot less work to apply and will yield more complete shielding than foil which isn't trimmed and joined around the edges really well.

Aluminum foil should work just fine, but it's hard to solder to the surface which makes for more work or leaks between the pieces.
Senior Member
Username: jacko

Post Number: 591
Registered: 10-2002
Posted on Tuesday, April 04, 2006 - 12:57 am:   Edit Post

I used aluminium foil for the control cavity of my homemade bass (a long time ago). Never had a noise problem with it.
I remember an old magazine article showing martin peterson building one of his Sei basses and he used a really heavy duty foil insert as he was glueing the body together.

Username: terryc

Post Number: 80
Registered: 11-2004
Posted on Wednesday, October 18, 2006 - 8:14 am:   Edit Post

If you are clever enough and have the correct metalworkers tools(tinsnips, planishing hammers) you can make a faraday box from thin guage aluminium...this will certainly stop any radio/electrical interference completely

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