Technobezz is supported by its audience. We may get a commission from retail offers.

This deal has expired

The price may have changed. Check Woot for the latest price.

PrimoChill PrimoPrep Cooling Loop Prep - 2oz

Name: PrimoChill PrimoPrep Cooling Loop Prep - 2oz
SKU: d962755a-743b-4c5f-af20-7c7938b7f439
Price: 7.97 USD
Availability: InStock
Rating: 4.4 (11 reviews)

4.4 (11 reviews)

Posted Jul 31, 2026Updated Aug 6, 2026

$7.97$13.29

40% OFFYou save $5.32

Check Current Price on Woot

In Stock

Is this a good deal?

Size: 2oz

Great Deal

PrimoChill PrimoPrep cleans new custom cooling loops before first fill. At $7.97 (40% off), it's a low-cost way to protect your pump and blocks from flux and debris. Best for anyone building a water-cooled PC.

What we like

Removes flux, oil, and debris from new loops
Helps prevent blockages in pump and cooling fins
Simple two-step process before adding coolant
Safe for acrylic, copper, and nickel components

Watch out for

Need to flush loop with distilled water after use
2oz bottle covers one typical loop only

Tip: Run PrimoPrep through your loop for 24 hours, then drain and rinse before adding coolant.

Our Take

Best for: PC builders setting up a custom water cooling loop for the first time.

PrimoChill PrimoPrep is the kind of product that saves you headaches later. New radiators and water blocks often carry manufacturing residue, solder flux, and small particles that can gunk up your pump or clog micro-fins. PrimoPrep dissolves and flushes that out before you commit to coolant. It's easy to use: pour the 2oz bottle into your loop, top off with distilled water, and run the pump for a day. Drain it, flush with clean water, and you're ready for coolant. It's safe on common loop materials, so no need to worry about corrosion or clouding. 97, it's a no-brainer addition to any custom loop build. 29 makes it even easier to justify. If you're assembling a new loop or rebuilding an old one, this is a cheap insurance policy.

Price Analysis

This 2oz bottle is marked down 40% from $13.29 to $7.97. That's a solid price for a dedicated loop prep solution. If you're finishing a build now, this is a good time to buy.

Common Questions

What does PrimoChill PrimoPrep do?

It cleans new water cooling components by dissolving flux, oils, and debris left over from manufacturing. You run it through the loop before adding coolant to keep your system clean.

How do I use PrimoPrep?

Pour the entire 2oz bottle into your loop, fill the rest with distilled water, and run the pump for 24 hours. Then drain the loop, flush with distilled water, and fill with your chosen coolant.

Is PrimoPrep safe for all water cooling parts?

Yes, it is safe for acrylic, copper, brass, nickel-plated blocks, and common tubing materials. It leaves no harmful residue when flushed properly.