RUSTINS G Shield Electro Smog Shielding Paint 1L

Don’t get ripped off from guitar suppliers for a tiny bottle. Buy this tin for the same price and do all your guitars. Great for covering up additional routes on guitar bodies at the same time as sealing the wood and way less hassle than aluminium or copper tape. Way quicker. Do 2 coats. And you will have continuity when you test with a multimeter

Ideal for jobs that need RF shielding

The listing states, that “the Shield has incremental shielding attenuation (up to -57 dB for one layer of coating) for the frequency range up to 20 GHz and higher, including the 5G frequency spectrum”If that was correct it would block 5g and WiFi.I painted 3 layers on the inside of a solid wooden box, allowed it to dry and placed an iPhone 12 inside with 5g, I recorded the screen on the device using screen recording and played the video back and there was no impact on the phones signal at all and that is with 3 layers of this paint.I placed the phone inside, closed the lid, closed the clasp on the box and even with the lid securely fastened it didn’t even dampen the signal and when I called the phone it rang just fine clearly showing that this paint doesn’t work as described and for the price it’s a terrible product.In their own video they showed 1 layer of paint on a cardboard box blocking the phone signals and there is no way that it’s blocking any signals.I’m going to have to spend more money to either line the box with copper sheeting or with genuine RF blocking fabric. It’s clear to me that this product doesn’t work as advertised in the video they provided.

This paint is easy to apply to the internal cavities of an electric guitar (and is very black, so don't drip it on the finish0 and does a decent job of reducing hum. Subjectively, it works as well as copper foil, and is much easier to apply.

I used this to shield the pickup and control cavities on a fender telecaster, and it completely eliminates 60 cycle hum on clean tones, and renders it nearly imperceptible with overdrive. Just be sure to shake well since it is a suspension of graphite in a liquid, so if you don't shake it, there won't be any graphite on top, so it won't work as well

I was dubious about it's effectiveness in shielding a guitar, the alternative being foil, I can say without hesitation, it 100% works, if this can tame a Dimarzio SDS1 noise levels to zero then that's proof enough for me.I also completely shielded the pickguard with aluminium and added a ground wire to body and vol pot , apparently if this isn't done then the paint is ineffective.Tip, decant it to stir and use, you'll thank me later, I applied three coats as per instructions, I masked the edge of the cavity, if you do get it on the poly around the edge you will find out like I did, it doesn't dry so you will need to give it a wipe, three coats used half a tin .

Did the cardboard box test with a 4G 'phone. Did nothing to attenuate either SMS or call reception and replay of Youtube videos continued without interruption. In my estimation this product is worthless.