Thermal paste QOLTEC 51630 — heat sink compound for CPU/GPU cooling

QOLTEC 51630 is a thermal paste formulated to improve heat transfer between processors and cooling solutions. This heat sink compound is designed to fill microscopic gaps between a CPU or GPU and a heatsink or cooler, reducing thermal resistance and helping to maintain stable operating temperatures in desktop PCs, laptops and other electronic devices that require a reliable thermal interface material.

Advantages

The paste combines efficient thermal conductivity with electrical insulation, allowing safe use in tight component layouts. It spreads easily to form a consistent interface layer, filling micro-gaps to improve contact between the chip and the cooler. The formulation is stable over extended periods and resists drying or degradation, so it can remain effective for long-term use without frequent reapplication.

Suitable for

• Thermal interface between CPU and heatsink in desktop computers
• Thermal interface between GPU and cooler in graphic cards or integrated solutions
• Cooling interfaces in laptops and compact systems where efficient heat transfer is required
• Electronic components and modules that need improved heat dissipation

Key specifications

• High thermal conductivity for effective heat transfer
• Electrical insulation to reduce risk of short circuits
• Viscosity designed for easy application and uniform spreading
• Long-term stability with resistance to drying and performance loss
• Suitable for use with a variety of heatsink and cooler materials

How to use

Clean the contacting surfaces of the processor and heatsink to remove old paste, dust and grease using isopropyl alcohol or a recommended cleaner and a lint-free cloth. Apply a small, pea-sized amount of QOLTEC 51630 to the center of the chip surface or use a thin, even layer depending on the recommended method for your cooler and chip size. Mount the heatsink and secure it according to the manufacturer's instructions so the paste spreads to fill micro-gaps. If necessary, remove and reapply the paste during major maintenance or when replacing cooling components.

Usage recommendations

For optimal results, use only a small, controlled amount to avoid excess squeeze-out; ensure even pressure when mounting the cooler and allow normal thermal cycling before judging performance. Store the product in a cool, dry place and avoid contaminating the paste with dust or fibres during application.