Sooo...is it electrically conductive or not? Zync oxide? Aluminium oxide?

Is it chobo-friendly? :P or your average PC hobbyist will kill the motherboard :D

I don't get the 2.6 g/cm3 value, dynamic viscosity for pastes is normally measured in different values like Centipoise or with liquid in Centistokes (kinetic viscosity):

Google AI Overview

The viscosity of a paste generally ranges between \(50,000\) and \(200,000+\) centipoise (cPs), placing it in the "high viscosity" category. Because pastes are almost always non-Newtonian fluids, their thickness changes significantly depending on the force or pressure applied, making a single number difficult to define. [1, 2, 3, 4, 5]
Because "paste" is a broad term, exact viscosity measurements rely on the specific material and its properties: [1]

• Tomato Paste: \(\sim190,000\text{ cPs}\)
• Solder Paste / Paste Ink: \(45,000 - 100,000\text{ cPs}\)
• Toothpaste: \(70,000\text{ cPs}\) or higher
• Petroleum Jelly: \(\sim64,000\text{ cPs}\) [1, 2, 3, 4, 5]

Key Rheological Properties of Paste

• Thixotropy: Most pastes are thixotropic, meaning they appear gel-like and solid at rest but become much more fluid and easier to pump when agitated or sheared.
• Shear-Thinning: When a force is applied—such as squeezing toothpaste from a tube or pressing solder paste through a stencil—the viscosity drops. Once the force stops, the paste regains its thickness to hold its shape.
• Yield Point: Pastes require a minimum amount of initial force (yield stress) to start moving. This keeps the material stable in its container without flowing like a standard liquid. [1, 2, 3, 4, 5]

For further analysis, you can reference the Ellsworth Adhesives Viscosity Chart or review the Wikipedia Viscosity Entry to understand how non-Newtonian behavior is measured. For more specific engineering or mixing calculations, you can look at the Quilinox Viscosity Reference. [1, 2, 3]

Probably a typo, because it looks more like the specific mass of that paste ;) . That would mean the contents of the syringe has 2 g divided by 2.6 g/cm3 = app. 0.78 cm3 paste, which sounds quite plausible.
Like it explains in the text above, giving the viscostiy a fixed number is 🐂💩 in my opinion.

Maybe the Zalman marketing sees it in a different light :D.

Let's just wait untill it gets (independently) thoroughly tested and how it compares to the competition in a real life scenario, that's more relaiable than manufacterers statements :roll:.

PLAfillerSooo...is it electrically conductive or not? Zync oxide? Aluminium oxide?

What do you think will happen to electrical conductivity when loose electrons get "shackled into place"?
Also might want to read about aluminium electrolytic capacitors.

It's that old silver overhype goo that has some conductivity, because silver wants to stay pure and "free of marriage to oxygen".

EsaTIt's that old silver overhype goo that has some conductivity, because silver wants to stay pure and "free of marriage to oxygen".

It doesn't want to stay pure, it collects oxygen too, but the oxide (Ag2O) has a very special property - it's conductive. Several orders of magnitude less than metals but still. I guess that's what you mean when you say "some conductivity".

EsaTWhat do you think will happen to electrical conductivity when loose electrons get "shackled into place"?
Also might want to read about aluminium electrolytic capacitors.

It's that old silver overhype goo that has some conductivity, because silver wants to stay pure and "free of marriage to oxygen".

I can't really say. Title says: silicon-based. I am pretty sure silicon is not conductive. Dimethylpolysiloxane is non-conductive as well. Aluminium oxide also. Zinc oxide has crystal state and melting state. What state is it in this paste? I don't know. Crystal state is non-conductive.

I'd rather have it written from the manufacturer somewhere than guess it myself. My point was this is not mentioned in the PR from Zalman.

@crazyeyesreaper should get some samples in for review.

btarunrzinc oxide

Thank you.
In this regard, I am excellently equipped.

Regards,
Fred.

WirkoIt doesn't want to stay pure, it collects oxygen too, but the oxide (Ag2O) has a very special property - it's conductive. Several orders of magnitude less than metals but still. I guess that's what you mean when you say "some conductivity".

While silver doesn't stay pure forever, compared to most metals its oxidizing is slow.
And aluminium oxidizes instantly and only reason it doesn't crumble to dust at fast rate is aluminium oxide layer being stable...
At least unless you add gallium aka liquid metal paste into mix, which is "very agressive matchmaker between aluminium ond oxygen".