A three-stage clean for the manufacturing residue that accumulates on new water-cooling components. Rad Clean flushes the radiators and strips factory-applied chemicals and film. SysPrep purifies the rest of the loop, clearing dust and debris out of tubing, blocks and fittings. PrimoPrep then stabilises pH, particularly the copper load a large radiator introduces, and prepares the system for mixed-metal coolant compatibility.
· Complete Prep Kit — New System
Prep kit · New system
Complete Prep Kit — New System
Everything a first build needs, in one box. Start here if nothing has ever run through the loop.
1hRad Clean, radiators
48hSysPrep, whole loop
72hPrimoPrep, final stage
Buy the kit$22.99
3 bottlesRad Clean, SysPrep, PrimoPrep
Plus2 plastic fittings and a funnel
New buildsNothing has run through it yet
No aluminumOr nickel fittings during Rad Clean
01
Three stages, in order
Manufacturing residue ships inside every new part. Each bottle clears a different part of it.
Stage 1 · Rad Clean
RadiatorsStrips factory-applied chemicals and film.
Stage 2 · SysPrep
The whole loopClears dust and debris from tubing, blocks and fittings.
Stage 3 · PrimoPrep
pH and copperStabilises pH and readies the loop for mixed metals.
02
Use it in five steps
- 1
Rad Clean the radiators
Half a bottle in 32 oz, one hour, plastic caps.
- 2
Assemble and leak-test
Plain distilled, PSU jumpered, 12 to 24 hours.
- 3
SysPrep, 48 hours
Drain and rinse until the runoff is clean.
- 4
PrimoPrep, 72 hours
Drain and rinse until the runoff is clean.
- 5
Fill, bleed, log the date
Bleed 24 hours. Photograph the reservoir.
03
What it works with, at a glance
✓Use with
- Brand-new componentsBlocks, radiators, tubing, fittings.
- Distilled or DI waterAbout 5 gallons for the full run.
- The included fittings and funnelTo cap radiators during Rad Clean.
✕Never with
- Aluminum componentsNot compatible.
- Nickel-plated fittings during Rad CleanUse the plastic caps.
- A loop that already ran coolantThat is the Existing System kit.
- 3
Stages
Rad Clean, SysPrep, PrimoPrep.
- 5gal
Water
Distilled or DI for the full run.
- 48h
SysPrep
Then drain and rinse.
- 72h
PrimoPrep
Then fill with coolant.
04
The full story
05
