# Coolant antifreeze 1 L THERMALTAKE CL-W246-OS00BU-A blue, ready-to-use

**URL:** https://aio.lv/en/product--thermaltake-cl-w246-os00bu-a--2100244
**Data updated:** 2026-03-07 11:03 (EET)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** THERMALTAKE
**Manufacturer code:** CL-W246-OS00BU-A
**EAN:** 4713227520133
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 38.99 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 32.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--thermaltake-cl-w246-os00bu-a--2100244

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

Thermaltake CL-W246-OS00BU-A is a ready-to-use blue coolant/antifreeze supplied in a 1 L volume for PC liquid cooling systems. Designed for use in CPU/GPU loops and closed or custom water-cooling circuits, it provides corrosion protection and heat transfer medium without need for dilution. Suitable for maintenance, filling, and topping-up cooling loops.

## Long description

Thermaltake CL-W246-OS00BU-A is a ready-to-use blue coolant/antifreeze supplied in a 1 L bottle for PC liquid cooling systems. Formulated as a pastel, non-transparent high-performance fluid, this coolant is designed for CPU and GPU loops, closed factory circuits and custom water-cooling configurations. The product combines corrosion protection for common loop metals with a low-viscosity heat-transfer medium that is supplied pre-mixed and requires no dilution before use.
Advantages
The coolant offers multi-metal corrosion protection for copper, brass, nickel and aluminum while remaining non-flammable and biodegradable. Its low viscosity improves flow compared with many other coolants, and the liquid surface tension optimizer reduces the risk of airlock to simplify filling and starting a loop. Color-saturated, stable pastel pigmentation provides a consistent appearance in acrylic or PET tubing.
Suitable for
 Filling and topping-up CPU and GPU liquid cooling loops
 Closed-loop or custom water-cooling systems in desktop PCs
 Maintenance, flush-and-refill procedures and seasonal antifreeze protection
 Systems requiring visible colored coolant for aesthetic builds
Key specifications
 Volume: 1 L ready-to-use coolant
 Color: Blue, non-transparent pastel finish
 Compatibility: Suitable for copper, brass, nickel and aluminum components
 Viscosity: Low viscosity formula for improved flow at typical operating temperatures
 Freezing point: approximately -20 °C
 Boiling point: approximately 165 °C
 Composition: primarily water-based with propylene glycol content below 6%
 Shelf life: at least 3 years when stored airtight
 Environmental: biodegradable, formulated to be eco-friendly
How to use
Before filling, flush the loop thoroughly with distilled water or a compatible cleaning solution and ensure all residues of previous fluids are removed. Shake the bottle gently if needed to homogenize the pastel pigment, then pour the coolant into the reservoir or fill point until the loop is fully filled. Run pumps briefly to circulate fluid and check for leaks; the liquid surface tension optimizer helps reduce airlock but bleed the loop as necessary until steady flow is achieved. There is no need to dilute this ready-to-use product.
Usage recommendations
Use only with components and tubing rated for PC liquid cooling. Perform a pressure/leak test after filling and observe the system for several hours. Replace coolant every 12–24 months or earlier if discoloration, cloudiness or particulate appears. Avoid mixing this coolant with other brands or colors to prevent precipitation; if switching fluids, flush the loop thoroughly before refilling.

## Specifications

| Feature | Value |
|---|---|
| Volume | 1 L |
| Product type | Ready to use |

### Design

| Feature | Value |
|---|---|
| Product colour | Blue |

### Packaging data

| Feature | Value |
|---|---|
| Quantity | 1 |

## FAQ

### How much does the THERMALTAKE CL-W246-OS00BU-A 1 L coolant cost, and is it available for purchase?

The price is 38.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All THERMALTAKE products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized THERMALTAKE service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/2100244/65739064_large.webp