Search the libraryShop PrimoChill.com
· Ice

Ice

The transparent, low-conductive pre-mix. Nothing to mix, nothing to measure — pour it in and run.

Ready to use·32 oz / .9 L·Transparent·12 colours
Built to run 24/7
Ice has no duty-cycle limit — this is the fluid for a system that stays on, not one built to be drained after the photos.
Prep before the first fill
A new build gets SysPrep; a system that has already run coolant gets System Reboot instead. Either way, PrimoPrep on tubing and fittings before final assembly. Guides below.
Nothing else goes in the bottle
No dyes, no biocides, no other additives — Ice already carries a complete inhibitor package.
Topping off with DI water is fine
It will dilute the colour a little over time, but it will not hurt performance. Top up with more of the same fluid instead if you want the colour to stay exactly as filled.
Colour · 12 available

Swatches are visual approximations of the listed range — always confirm against a physical sample for a colour-matched build.

How it works

What "low conductive" actually means

Ice is formulated with low chemical content so that, if it does escape the loop, it is far less likely to short a powered component than a heavily dosed coolant would be. That is a margin of safety, not immunity. Introduce dust, or mix Ice with another fluid, and its conductivity rises — the property belongs to the fluid as bottled, not to the puddle on your motherboard.

Why low viscosity matters

Thinner fluid moves through a restrictive block with less pump head, which means slightly better flow for the same pump speed and less noise chasing it. It also makes bleeding faster, because air separates out of a thin fluid more readily than a thick one.

Clear is honest

A transparent coolant shows you everything — including the plasticiser and biological growth that an opaque fluid hides until it is advanced. Builders often read that as Ice being fragile. It is the opposite: you are seeing problems at week three that an opaque loop would not reveal until month four.

Specification
FormUse as bottled
Shelf life2 years unopened
Service interval12 months, sooner if temps drift
PrepSysPrep strongly recommended
Service interval

Fill slowly, bleed for 24 hours with the pump running and the system off. Check every fitting twice — a paper towel under each joint tells you more than a pressure gauge.

For Ice specifically

Ice is good for about 12 months running in a loop — sooner if you notice temperatures drifting upward with no other obvious cause, which is the practical sign it is time for a change regardless of the calendar. Unopened, it is good for 2 years from purchase. Top up with more Ice or plain DI water — a little dilution will not hurt performance, though heavy topping off with water will soften the colour over time.

Live loop schematic
RADIATOR 360mmCPU BLOCKGPU BLOCKRES
SelectedClear
AppearanceTransparent
UV reactiveNo
Bottle32 oz / .9 L
Price$19.99
Buy Ice · Clear
The rest of the line

Other coolants

PrimoChill

Keeping It Cool is the technical library of PrimoChill. Products ship from primochill.com.

Guides
Fluids

© 2026 PrimoChill · Made in the U.S.A.