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· Ice
Pre-mix · Transparent · Daily driver

Ice

Low-conductive, low-viscosity transparent coolant. Fill it and forget it.

PrepSysPrep or Reboot, then PrimoPrep
32ozStraight from the bottle
24/7No duty-cycle limit
Buy Ice$19.99
12 colours7 of them UV reactive
Low conductiveA margin of safety, not immunity
12 monthsService interval, sooner if temps drift
2 yearsShelf life, unopened
01

The top-up rule

A couple of ounces of DI water to top up is fine. Past that, top up with Ice.

0 ozA couple of ouncesEvery month, adding up

A couple of ounces

Fine. Some evaporation through soft tubing is normal.

More than that, or every month

Every ounce of water replaces an ounce of coolant. A loop topped up with water every month is slowly turning into water: thinner colour, thinner inhibitors.

Low conductiveA margin of safety, not immunity. Ice can become conductive if it meets dust or another fluid.
02

Pick a colour

Swipe to see all 12 colours →
  • Clear
  • Clear/UV Blue
  • UV Blue
  • Electric UV Blue
  • Steel Blue
  • UV Green
  • UV Brite Green
  • Yellow
  • Red
  • Blood Red
  • UV Pink
  • UV Purple
Swatches are on-screen approximations, not a physical colour sample.Switching colours later? Run a System Reboot first.
03

Get it in the loop in five steps

  1. 1

    Leak-test on distilled

    Plain distilled, PSU jumpered, 12 to 24 hours.

  2. 2

    SysPrep or System Reboot

    SysPrep on a new build, Reboot on a loop that ran coolant. 48 hours, then flush.

  3. 3

    PrimoPrep, then flush

    72 hours to stabilise pH before the permanent fill.

  4. 4

    Fill and bleed

    Pour Ice straight in and bleed for 24 hours.

  5. 5

    Inspect at week two

    Film, strands or a colour shift this early mean the prep was short.

Download the fill card
04

What it goes into, and how a fill ages

Use with

  • Copper, brass, nickel-plated copperThe metals Ice is formulated for.
  • PETG, acrylic, glass, PVC tubingFully compatible.
  • A couple of ounces of DI to top upPast that, top up with Ice.

Never with

  • Dyes, biocides, kill coils, other inhibitorsIce already carries a complete inhibitor package.
  • AluminumGalvanic corrosion against copper, brass and nickel.
  • Fully-coated third-party fittingsThe coating can leach into the fluid over time.
  1. Day 1

    Fill and bleed

    24 hours with the pump running. Check every fitting twice.

  2. Week 2

    First inspection

    Film, strands or a colour shift this early mean the prep was short.

  3. 6 months

    Top up, inspect

    Top up with Ice. Check the radiator fins for debris.

  4. 12 months

    Drain and service

    Full drain, Rad Clean through the radiators, rinse, refill.

05

The full story

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.

06

Other coolants

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

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