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Re: Conductive Paint


 

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I¡¯ll answer #2¡­ the SPI can run at speeds up to 10 MHz¡­ so anything in the 0.5-10 MHz region is concerning.

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Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

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Owner - Operator

Big Signal Ranch ¨C K9ZC

Staunton, Illinois

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Owner ¨C Operator

Villa Grand Piton ¨C J68HZ

Soufriere, St. Lucia W.I.

Rent it:

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Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

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email:? bill@...

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From: [email protected] <[email protected]> On Behalf Of chris corcoran via groups.io
Sent: Saturday, February 8, 2025 4:57 AM
To: [email protected]
Subject: Re: [AmateurRadioBuilders] Conductive Paint

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Both Conductive Paints look interesting. Two questions, if anyone has the energy to answer ?

  1. John, have you used the Rustins paint successfully on your 3D Printed facias and if so did you use PETG.
  2. Also another technical question, what frequencies are we trying to protect the T41 from, and/or stop frequencies from exiting the box? (hope that¡¯s not a stupid question)

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The MG Chemicals tech sheets imply that adhesion to Polypropylene is poor, not sure where PETG or PLA would fit.

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Silver paint (842AR) attenuation is so much better $$$$$$$ , even the Nickel based paint is much better. Not sure if the Carbon paint ?would just keep the elephants away¡­

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  1. 838AR - Carbon

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  1. 842AR Silver conductive paint

  1. Even the 843AR silver coated copper is pretty good

  1. For completeness Nickel based paint 841AR

From: [email protected] <[email protected]> On Behalf Of John
Sent: 07 February 2025 10:18
To: [email protected]
Subject: Re: [AmateurRadioBuilders] Conductive Paint

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Check this out, they are a trusted very well established comapany and the tech sheet makes interesting reading. Not sure about supply in the States, over here MG Chemical is very expensive.

HTH
John

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