12-05-2014, 07:57 PM
I have used a few different types of shielding paint and copper tapes to prevent hum and unwanted noise. Some paints seem to be just graphite powder in a base of thinners. The brass tapes are good but they can be a major hassle to apply.
I found this Cp34 from a company in Israel and its the best shielding paint hands down. The application is way easier than other paints, It doesn't go lumpy over time and it only needs a thin single coat. When dry it doesn't rub off on your hands like graphite paint. Aside from all that its shielding capability is great. I got 5 cavities done with the single bottle so the price is more than fair.
Some info from the link
Description:
This Electro-conductive coating is designed for protection against low
frequency electric fields.
By creating a Faraday cage in the pickups cavity, it helps reducing
hum and buzz noises.
Technical:
* Attenuation: Single-layer - at least 40dB.
* Color: Black.
* The shielding paint is ready for use. Never mix with water or other coating
materials.
* Perfect corrosion resistance: Most shielding products containing metal
components are not adequately protected against corrosion. Our shielding
paint, shield without metal particles using a mixture of carbons. Therefore
they offer perfect corrosion resistance (no oxidizing) and long-term durability.
Shelf life: 1 year (see paint container).
Application:
1. Apply a thin layer of CP34 in the guitar pickups cavity using a small paint brush.
2. Do not skip areas.
3. Allow to dry for 24 hours.
4. Connect a grounding wire using a screw to any point of the coated area.
5. Check conductivity: Using an Ohm Meter, apply one lead to any point of the
coated area, and the second one to any ground point of the pickups assembly.
The resistance should be few ohms (usually less then 10 Ohms).
To achieve a constant high attenuation, it is essential to apply the shielding paint with
equal thickness.
http://www.ebay.com.au/itm/GUITAR-SHIELD...0843301408
I found this Cp34 from a company in Israel and its the best shielding paint hands down. The application is way easier than other paints, It doesn't go lumpy over time and it only needs a thin single coat. When dry it doesn't rub off on your hands like graphite paint. Aside from all that its shielding capability is great. I got 5 cavities done with the single bottle so the price is more than fair.
Some info from the link
Description:
This Electro-conductive coating is designed for protection against low
frequency electric fields.
By creating a Faraday cage in the pickups cavity, it helps reducing
hum and buzz noises.
Technical:
* Attenuation: Single-layer - at least 40dB.
* Color: Black.
* The shielding paint is ready for use. Never mix with water or other coating
materials.
* Perfect corrosion resistance: Most shielding products containing metal
components are not adequately protected against corrosion. Our shielding
paint, shield without metal particles using a mixture of carbons. Therefore
they offer perfect corrosion resistance (no oxidizing) and long-term durability.
Shelf life: 1 year (see paint container).
Application:
1. Apply a thin layer of CP34 in the guitar pickups cavity using a small paint brush.
2. Do not skip areas.
3. Allow to dry for 24 hours.
4. Connect a grounding wire using a screw to any point of the coated area.
5. Check conductivity: Using an Ohm Meter, apply one lead to any point of the
coated area, and the second one to any ground point of the pickups assembly.
The resistance should be few ohms (usually less then 10 Ohms).
To achieve a constant high attenuation, it is essential to apply the shielding paint with
equal thickness.
http://www.ebay.com.au/itm/GUITAR-SHIELD...0843301408