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Carnivorous HERBivore
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18/07/2019 9:17 am  

Has anyone used shielding paint?

Can you recommend a product?  

Any tips and recommendations? 

Thanks...


mark bailey
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18/07/2019 9:40 am  

Hey Herb -

This is what I use but I would also love to know if anybody else has alternatives?

https://www.stewmac.com/Pickups_and_Electronics/Shielding/Conductive_Shielding_Paint.html

Measure twice, cut once...


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Carnivorous HERBivore
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18/07/2019 9:49 am  

Thanks Mark - I'm kinda alergic to Stewmac due to high prices AND import duty - once bitten, twice shy.

I notice Crimson sell a product... a teneer for 30ml...


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mark bailey
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18/07/2019 5:11 pm  

Do you mean 300ml? If not that seems a bit expensive ...30ml doesn't sound like it will go very far.

I remember 'back in the day' at the factory (yawn...) we used conductive paint that looked identical to the Stewmac stuff but it was German - on the tub it said 'Elektro-Daag'...I think...it was a long time ago...

Maybe that will be a clue that helps jog someones memory and someone out there knows something more...

Meanwhile the Stewmac stuff is pretty good but it does take 3 good coats to make it fully conductive.

edit: Your cheapest/best option is probably 'copper foil tape'

For plastic coverplates and scratchplates I have had success with self adhesive aluminium tape - normally used for taping insulation...

This post was modified 5 months ago by mark bailey

Measure twice, cut once...


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darrenking
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Bill Flude
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23/07/2019 7:46 pm  

Electrodag 437 now by Loctite was Acheson - 8kg tub is £600.......

Looks good - thin layer works according to blurb - safe on plastic materials - maybe Bailey Guitars could buy in bulk and sell in small tubs.......... ? ? ? ? ? 

Just a point - when would you put something like this into cavities, before or after applying finish?

 

This post was modified 5 months ago by Bill Flude

Measure once........
Measure again.........
Sod it - make tea!


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mark bailey
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27/07/2019 7:02 pm  

@frocesterbill

You can apply the shielding paint before or after finishing - but...

I usually attach a ground (earth) wire to the shielding paint - if it has been finished over then you would need to scrape off some finish to get a connection. That's how they did it back in the factory (sometimes believe it or not) but I prefer to leave it til after - then you can just screw the wire down to get a connection.

Also paint around the cavity cover recess and use foil on the coverplate to complete the shielded 'box'

Well done finding the Electrodag 437 £600 for 8kg? Lets see what happens...

 

Measure twice, cut once...


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Bill Flude
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09/09/2019 1:40 pm  

Have found loads of DIY shielding paints on YouTube - all so far use graphite powder as the conductive element suspended in some kind of water based solution, sodium silicate in a couple of cases.

Will try to make some - my degree does say Chemistry.........

Measure once........
Measure again.........
Sod it - make tea!


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