Transparent conductive spray coating

[FoolMaker]

I have an object 3D printed with plastic PLA, I want to painting it (with several colors) and then add a transparent coating to make my object conductive. Does anyone here have any experience with transparent conductive spray coating ?

 

[IRstuff]

Transparency and conductivity are typically mutually exclusive. So you need to decide how transparent and how conductive you need.

TTFN
I can do absolutely anything. I'm an expert!
faq731-376 forum1529

 

[FoolMaker]

About the transparency, the coating should not spoil the paint.
About the conductivity, resistivity could between 10⁶ and 10⁹ ohms per square.

 

[mcgyvr]

Try TechSpray 1756-8S

 

[moltenmetal]

Ohms per square what? Guess over three orders of magnitude, it doesn't matter much.

Transparent conductive coatings do exist (what is that- indium oxide they use on solar panels?), but not out of a spray bottle. But what you need sounds like it's only conductive enough to be static dissipative, not really conductive per se, and maybe that stuff Mcvyvr recommended will do that.

 

[IRstuff]

the resistivity in ohms per square is independent of lateral dimension, since the effective thickness is what's important, and that's factored into the resistivity. That means that a 1 mm x 1 mm square has the same resistance as a 100 mm x 100 m square.

TTFN
I can do absolutely anything. I'm an expert!
faq731-376 forum1529

 

[moltenmetal]

Thanks for clarifying IRStuff! It's a weird unit like mhOs I guess!