# Thermal paste QOLTEC 51650 — thermal conductivity 4.63 W/m·K, grey, 1 g

**URL:** https://aio.lv/en/product--qoltec-51650--767842
**Data updated:** 2026-03-07 10:54 (EET)
**Category:** Thermal Paste
**Manufacturer:** QOLTEC
**Manufacturer code:** 51650
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 13.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-51650--767842

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

QOLTEC thermal grease (model 51650) is a grey thermal paste with thermal conductivity 4.63 W/m·K and thermal resistance 0.0087 °C/W. Supplied as 1 g of compound, it is intended for improving heat transfer between CPUs, GPUs, heatsinks and other electronic components. Suitable for precision rework, thermal interface filling and small repair tasks.

## Long description

QOLTEC 51650 thermal paste is a grey, high-conductivity compound designed to improve heat transfer between processors, graphics chips, heatsinks and other electronic components. Supplied as a 1 g dose, the paste has a specified thermal conductivity of 4.63 W/m·K and thermal resistance of 0.0087 °C/W. It fills microscopic gaps at the interface, reducing thermal impedance and enabling more efficient cooling in precision rework, small repairs and component assembly.
Advantages
The thermal compound combines relatively high thermal conductivity with electrical insulation, enabling safe use around sensitive circuits. Its texture allows easy and accurate application for small areas or component-level work. The formula is stable over time and does not require frequent replacement under normal operating conditions.
Suitable for
 Thermal interface material between CPU or GPU and heatsink in desktops and laptops (small doses)
 Precision rework and component-level repairs where controlled application is required
 Filling micro-gaps on cooling bases, heat spreaders and small electronic modules
Key specifications
 Thermal conductivity: 4.63 W/m·K
 Thermal resistance: 0.0087 °C/W
 Weight: 1 g
 Colour: Grey
 Electrical behaviour: insulating (not electrically conductive)
How to use
Clean both mating surfaces to remove old thermal compound, dust and oils before applying the paste. Apply a small, controlled amount of QOLTEC 51650 to the center of the chip or heat source and spread thinly and evenly if required, or allow the heatsink pressure to distribute the compound. Reassemble the cooling assembly following manufacturer torque or mounting guidelines to ensure consistent contact and pressure. Use minimal quantity appropriate for the surface area to avoid overflow onto surrounding components.
Usage recommendations
Store the product at room temperature in a dry place. For optimal performance, perform application on clean, dry surfaces and avoid contaminating the paste with dust or conductive residues. Because the package contains a small quantity (1 g), it is best suited for single or occasional small repairs rather than repeated large-scale applications.

## Specifications

### Features

| Feature | Value |
|---|---|
| Product colour | Grey |
| Thermal resistance | 0.0087 °C/W |
| Thermal conductivity | 4.63 W/m·K |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.001 kg |

### Packaging data

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

## FAQ

### How much does the Thermal paste QOLTEC 51650 — 4.63 W/m·K, 1 g cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 904 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 03.07.2026 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 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, 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.

### Where can I download the instructions for Thermal paste QOLTEC 51650 — 4.63 W/m·K, 1 g?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/767842/56507616_large.webp