Not sure which fluid you need?
Two questions — new build or existing system, showcase or daily driver — and get the exact fluid and prep sequence.
Clear fluid
is a process,
not a product.
Every block, radiator and fitting arrives with something on it — machining oil, casting flux, cutting debris. It doesn't matter how good the coolant is if it's the first thing cleaning your loop.
Know your fluid
Vue is an opaque, dyed pre-mix. Liquid Utopia is a concentrate you add to DI water. They solve different problems and they are not interchangeable.
Then prep for it
SysPrep before the first fill. Rad Clean for radiators. System Reboot when Vue has already run. PrimoPrep for tubing and o-rings.
Four bottles. Four different jobs.
People reach for the wrong one constantly. Short version below — each opens the full chemistry, dilution table and dwell time.
Never built a loop before?
Nine guides, in order, from picking a radiator to the first leak test. Nothing assumed, nothing skipped, no video required.
The support desk answers in build terms, not ticket terms.
Send a photo of the loop. We'll tell you what the residue is and which bottle fixes it.
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Keeping It Cool is the technical library of PrimoChill. Products ship from primochill.com.
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