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32oz opaque coolant bottle with 2oz prep additive

PrimoChill

PrimoChill Opaque Show Coolant 32oz DIY Cooling

SKU CH-9QJ7-GH81H

Opaque, pre-mixed coolant delivers vivid solid colour and includes a 2oz PrimoPrep bottle for system preparation

  • Product typeCPU Block

Color Black Cherry Violet

  • Vibrant opaque colour transforms the look of your build
  • Ready-to-use pre-mix requires no measuring or dilution
  • PrimoPrep pH neutraliser included to prepare the loop
  • Safe for plastics, rubbers, gaskets and acrylic components
  • Preservative-free and APE-free formulation for cleaner operation

Showcase coolant for custom loops

PrimoChill Opaque Show Coolant is a pre-mixed, water-based fluid that delivers solid, non-transparent colour for custom water-cooling loops. The 32oz bottle includes a 2oz PrimoPrep pH neutraliser so the system can be prepped and filled in one step. Preservative-free and APE-free chemistry is safe for plastics, rubbers, gaskets and acrylic. Repeatable formulation ensures consistent hue every fill.

Experienced builders wanting vivid colour

Suits advanced users who want a showcase coolant with opaque colour and transparent-grade thermal performance. Not for beginners unfamiliar with loop prep, pressure relief or ongoing maintenance. Cannot be used with any wetted aluminium components, including specific Thermaltake RL radiators, EK aluminium kits, Enermax NEOChanger reservoirs or internally coloured fittings. Buyers needing aluminium compatibility should choose a different fluid.

32oz ready-to-use volume with prep fluid

The single deciding specification is the 32oz pre-mixed volume bundled with 2oz PrimoPrep, giving a complete fill kit for one standard loop without measuring concentrate. If your build requires a larger fill volume or you prefer concentrate to dilute yourself, this package size will not match the requirement.

How it compares

Measured against everything we stock in Heatsinks & Water Blocks, at today’s prices. Recalculated every night.

Price $25.99
Pricier than about 70% of the 609 comparable items (median $15.99).

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Specifications

Product
Product typeCPU Block

Questions about this item

Does the coolant produce pump noise or heat when circulating continuously?

The fluid is a pre-mixed, water-based concentrate designed for quiet, efficient circulation in custom loops with no added noise or thermal load beyond normal pump operation.

What existing loop components are required before pouring this coolant?

You need a fully assembled custom water-cooling loop — reservoir, pump, radiator, blocks, tubing and fittings — that contains no wetted aluminium parts.

Will this coolant damage older nickel-plated blocks or acrylic reservoirs I want to keep?

It is safe on all plastics, rubbers, gasket materials and acrylic, but it must not contact any wetted aluminium components such as certain older radiators or fittings.

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