Thermaltake

Thermaltake CL-W246-OS00WT-A P1000 White Coolant 1000ml

Engineered low-viscosity coolant that cuts airlock risk and delivers 26% better flow than competing pastel formulas.

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Overview

The Thermaltake P1000 Pastel Coolant in white delivers 1000ml of opaque, pre-mixed cooling fluid engineered specifically for custom water cooling loops. Its standout specification is viscosity — at 20°C it flows 26.4% more freely than competing pastel formulas, and 25.8% more freely at 40°C. In practical terms, this means less resistance through radiators and micro-channel blocks, reduced pump strain, and marginally quieter operation. The formula includes a surface tension optimizer that breaks down the meniscus effect during filling, which directly addresses one of the most common frustrations in custom loop assembly: persistent air pockets that resist bleeding.

This coolant is built for enthusiasts running soft-tubing or hardline custom loops with mixed-metal components. The anti-corrosive additives protect copper, nickel, and brass, while the non-flammable, biodegradable base keeps the formula safe to handle and dispose of responsibly. The white pastel finish delivers a clean, opaque aesthetic for builds where visual presentation matters — it pairs well with RGB lighting and contrasting tubing. The trade-off, as with all pastel coolants, is maintenance discipline: Thermaltake recommends a full drain and flush every 12 months to prevent pigment settling and maintain corrosion protection. Builders who prefer longer maintenance intervals may want to weigh that commitment against clear coolant alternatives.

Key Features

BETTER FORMULA - By adding a liquid surface tension optimizer the P1000 Pastel Water Cooling Solution Series minimizes the risk of airlock

VIVID COLORS - Comes in five non-transparent colors Red Blue White Green and Yellow The latest TT formula ensures color saturation stability and duration

FLOW LIKE PURE WATER - Low viscosity enables its effective flow At 20°C P1000 Pastel Coolant has 26 4% lower viscosity than other coolant and 25 8% lower at 40°C

ANTI-CORROSIVE SOLUTION - Non-flammable and provides great protection for the entire cooling system from corrosion

- Produced with the environment in mind P1000 is made with biodegradable materials and does not pollute the environment or bio accumulates

2 YEAR

Specifications

Brand
Thermaltake
Model
CL-W246-OS00WT-A
Capacity
1000 ml
Color
White (Pastel/Opaque)
Type
Pre-mixed Pastel Coolant
Anti-Corrosion
Yes
Anti-Freeze
Yes
Airlock Reduction
Surface Tension Optimizer
Viscosity (20°C)
26.4% lower than standard coolants
Viscosity (40°C)
25.8% lower than standard coolants
Flammability
Non-flammable
Biodegradable
Yes
Warranty
2 Years

Frequently Asked Questions

Yes. The P1000 uses an anti-corrosive formula designed to protect mixed-metal loops including copper, nickel, and brass components. It will not degrade O-rings or acrylic reservoirs under normal operating conditions.
At 20°C, the P1000 has 26.4% lower viscosity than competing coolants, which means your pump works less to move fluid through the loop. This translates to slightly lower pump noise and marginally better flow rates through restrictive blocks and radiators.
Thermaltake recommends replacing the coolant every 12 months to maintain optimal color saturation and corrosion protection. The pastel pigments can settle or degrade over time, particularly in high-temperature loops.
Pastel coolants carry suspended particles for their opaque appearance, which means there is some risk of sediment buildup in very fine micro-fin channels over extended use. Regular maintenance and flushing at the recommended interval minimizes this risk.
For a standard single-radiator loop with a CPU block, one 1000ml bottle is usually sufficient. Dual-radiator builds or loops with GPU blocks and larger reservoirs may require a second bottle.