Thermal paste QOLTEC 51635 — heat sink compound for CPU/GPU thermal interface

QOLTEC 51635 is a thermal paste designed as a thermal interface material for CPUs and GPUs. It facilitates efficient heat transfer by filling microscopic gaps between a processor or graphics chip and its heatsink, improving contact and thermal conductivity. The compound combines effective thermal conductivity with electrical insulation and is suitable for use in desktop PCs and laptops during cooler installation, maintenance, or routine thermal management.

Advantages

The compound offers high thermal conductivity while maintaining electrical insulation, reducing the risk of short circuits near sensitive components. It is easy to apply thanks to a smooth consistency that spreads evenly under pressure, and it remains stable over time without rapid drying or cracking. QOLTEC 51635 fills micro-gaps reliably to enhance heat transfer and can be used repeatedly across maintenance intervals without loss of key properties.

Suitable for

• Applying between CPU and heatsink in desktop computers
• Replacing or applying thermal interface material on laptop processors and GPUs
• Installing or re-seating aftermarket coolers and all-in-one liquid coolers
• Routine thermal maintenance and re-application during system upgrades

Key specifications

• Function: thermal interface compound for CPUs and GPUs
• Thermal performance: high thermal conductivity
• Electrical property: electrically insulating
• Consistency: smooth, easy to spread
• Durability: stable composition with long-term performance retention

How to use

Clean both the processor and heatsink contact surfaces thoroughly to remove old compound, dust, and oils using isopropyl alcohol and a lint-free cloth. Apply a small, pea-sized amount of QOLTEC 51635 to the center of the processor or use a thin line or spread method appropriate to your socket and cooler type. Mount the heatsink and fasten it according to the manufacturer's instructions so the compound spreads evenly and fills microscopic gaps. If necessary, remove and reapply the paste during future maintenance following the same cleaning and application steps.

Usage recommendations

Use only a small, controlled amount of paste to avoid overflow onto surrounding components. Allow the cooler to settle after installation for optimal spread, and recheck temperatures after the first boot. Store the product in a cool, dry place and avoid contamination of the dispensing tip to preserve the compound's properties.