# Heat Sink Compound Qoltec 51644

**URL:** https://aio.lv/en/product--qoltec-51644--767837
**Data updated:** 2026-03-07 10:54 (EET)
**Category:** Thermal Paste
**Manufacturer:** QOLTEC
**Manufacturer code:** 51644
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 23.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-51644--767837

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

Qoltec 51644 heat sink compound features a thermal conductivity of 3.05 W/m·K and a thermal resistance of 0.073 °C/W. Weighing 100 g, it is ideal for efficient heat transfer in electronic devices. This compound ensures optimal performance and longevity of components by effectively dissipating heat.

## Long description

Qoltec 51644 heat sink compound is a thermally conductive paste designed to improve heat transfer between electronic components and cooling systems. With a thermal conductivity of 3.05 W/m·K and a thermal resistance of 0.073 °C/W, this 100 g tube provides a balance of efficient thermal performance and electrical insulation. The compound fills microscopic gaps between a processor and its heatsink, promoting stable temperatures and supporting long-term component reliability.
Advantages
The Qoltec 51644 compound combines relatively high thermal conductivity with insulating properties, allowing safe use where electrical isolation is required. Its smooth, easy-to-spread consistency ensures even coverage and effective contact between surfaces. Formulated for durability, the paste maintains its thermal properties over extended use without frequent reapplication.
Suitable for
 CPU and GPU heat sink assembly and re-application
 Cooling systems in desktop computers and workstations
 Power electronics and small form-factor devices requiring thermal interface material
 Repair and maintenance of electronic modules with heat-producing components
Key specifications
 Thermal conductivity: 3.05 W/m·K
 Thermal resistance: 0.073 °C/W
 Net weight: 100 g
 Electrical behavior: electrically insulating
 Consistency: easy-to-apply, spreadable paste
How to use
Before application, power off the device and disconnect it from any power source. Clean both mating surfaces thoroughly to remove old compound, dust and grease, using isopropyl alcohol and a lint-free cloth. Apply a small, even amount of Qoltec 51644 to the center of the processor or component and mount the heatsink, allowing the compound to spread under pressure. If needed, remove and reapply to ensure correct coverage. Follow device manufacturer torque or mounting guidelines to avoid uneven pressure.
Usage recommendations
For best results, store the product in a cool, dry place and keep the cap tightly closed when not in use. Use the paste in ambient conditions recommended for the device, and avoid contaminating the compound with dust or moisture. When replacing or reapplying thermal paste, inspect the heatsink and contact surface for warping or damage that could impede thermal transfer.

## Specifications

### Features

| Feature | Value |
|---|---|
| Thermal resistance | 0.073 °C/W |
| Thermal conductivity | 3.05 W/m·K |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.1 kg |

### Packaging data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Heat Sink Compound Qoltec 51644 cost, and is it available for purchase?

The price is 27.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 29.06.2026 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 QOLTEC 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 QOLTEC 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: thermal conductivity, weight, 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/767837/56507613_large.webp