Since making our first coolant in 2002, Primochill has always strived to make the coolant usage as simple and reliable as possible. A lot has changed in the water cooling industry since than, but one thing has stayed the same and it is our drive to make products better and easier to use as well to maintain.

Primochill PrimoPrep™ was developed to address some of the most common issues that plague the computer water cooling industry. The mixes of metals in water cooling, from nickel plating to raw cooper and everything in between has always made some coolants not as reliable and simple to use.

PrimoPrep's unique formulation pre-treats your cooling loop to ensure compatibility with today high performance coolants as well as those incredible "Showcase Coolants". The pre-treatment helps control the fluctuation of the PH levels in your system caused by high levels of copper mostly from large capacity radiators. With this treatment it also prepares the system for use of coolants in a mix metal closed loop environment leaving the guesswork a thing of the past.


  • Water Based

  • Environmentally Responsible, Safe, and Non Toxic Product

  • Concentrate - Just Add to 32oz of DI or distilled water

  • Safe on All Plastics, Rubbers, and Miscellaneous Gasket Materials, Including Acrylic.

  • No special equipment (gloves, goggles) needed


  • Bottle Size: 2oz

  • Dosage: Mix with 32oz of DI or distilled water

  • Shelf Life: 2 Years Unopened


PrimoPrep is 100% compatible with PETG and flexible tubing of all sizes. It is safe to use on rubber, plastics and acrylics so rest assured all your seals, o-rings, reservoirs and such are all safe!


PrimoChill is not responsible for any hardware damage. Use at your own risk.