EMFields Screening Products - Earthing Instructions

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Canopies

Because it is not possible to earth the material some of the canopies are made from, and earthing canopies can attract electric fields, we do not recommend that canopies are earthed as a general rule.

Paint (Internal)

The paint will screen RF fields whether earthed or not. However the paint is conductive, so it may pick up electric fields. It is not always necessary to earth the paint however.

When to earth: In very general terms, you probably do not need to earth walls in upstairs rooms, unless you have screened the floor and ceiling as well.

If in doubt: Do a "before" and "after" test for electric fields. Using our PRO meter, or another calibrated electric field meter, measure the electric field, standing on the floor at least a foot away from the wall once you have painted it. Make a note of the readings. Earth the paint, using one of our earthing leads (or earth it yourself using the instructions we supply with the paint, which are replicated below for your use). Measure the electric fields again in the same position. If the fields are higher once you’ve earthed it, remove the earthing lead. If they drop, leave it there.

Earthing instructions (only if you have determined it needs doing)

Measure a length of wire needed to connect the painted surface to the nearest radiator or socket, plus some spare to allow it to be made secure, avoiding the danger of tripping people up or being torn from the painted surface.
Take the plastic coating off both ends of the wire.
Tape one end of the wire to the painted surface. You may want to splay the wires to get maximum contact.
Attach the other end of the wire:
1. To a metal part of an earth bonded radiator.
  - You may need to scratch away the paint off a small area to ensure wire to metal contact. Tape in place.
  - Some plumbers use plastic pipes in the radiator system. These systems will not be connected to the house earth. (you should use b)
2. To the earth pin of a standard plug. Plug it into a socket and the canopy will be connected to the house earth, whether the switch is "on" or "off".

You may want to buy an earthing lead. The copper square is backed with conductive glue which you can stick on to the painted surface, after removing the paper backing. The aluminium foil square is then stuck over the copper square to help prevent the wire from being pulled away from the wall. You can then paint over it.

Paint (External) - for walls painted entirely with the paint only

We recommend you buy a special earthing kit, which comes with full instructions.