# Thermal paste QOLTEC 51641, thermal conductivity 3.05 W/m·K, 0.5 g, gold

**URL:** https://aio.lv/en/product--qoltec-51641--767834
**Data updated:** 2026-03-07 10:54 (EET)
**Category:** Thermal Paste
**Manufacturer:** QOLTEC
**Manufacturer code:** 51641
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-51641--767834

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

QOLTEC 51641 is a thermal paste for improving heat transfer between electronic components and heat sinks. It offers thermal conductivity of 3.05 W/m·K and thermal resistance of 0.073 °C/W in a 0.5 g syringe/pack. The product is gold-coloured and supplied as a single 0.5 g unit, suitable for CPU, GPU or power device contact surfaces and small electronics cooling tasks.

## Long description

QOLTEC 51641 is a thermally conductive paste formulated to improve heat transfer between electronic components and heat sinks. Supplied in a 0.5 g syringe, the gold-coloured compound offers thermal conductivity of 3.05 W/m·K and low thermal resistance of 0.073 °C/W, making it suitable for small-scale cooling tasks where precise application and reliable contact are required. The paste is electrically insulating and designed to fill microscopic gaps between a processor or power device and its cooling base, improving heat dissipation without compromising electrical isolation.
Advantages
The formulation combines relatively high thermal conductivity with electrical insulation, allowing safe use on CPU, GPU and power devices where conductive pastes are unsuitable. Its paste-like consistency enables easy, controlled application from the 0.5 g syringe, while stability over time ensures that the compound maintains thermal performance without frequent reapplication. The gold colour helps visual confirmation of coverage during installation.
Suitable for
Thermal interface between CPUs or GPUs and small heat sinks
Power transistors and voltage regulators in compact electronics
Repair and maintenance of small consumer electronics with limited contact areas
Applications requiring electrically insulating thermal transfer
Key specifications
Thermal conductivity: 3.05 W/m·K
Thermal resistance: 0.073 °C/W (manufacturer data)
Net weight: 0.5 g (0.0005 kg)
Product colour: gold
Supply form: single syringe for precise application
How to use
Ensure both mating surfaces are clean, dry and free of old thermal compound, dust or oils before application. Apply a small amount of QOLTEC 51641 to the centre of the component or heat sink contact area and spread evenly if required, or allow pressure from the heat sink to distribute the paste. Mount the heat sink according to the device manufacturer’s instructions to obtain a thin, continuous thermal layer. Wipe away any excess with a lint-free cloth and isopropyl alcohol if necessary.
Usage recommendations
Use the syringe sparingly: a thin, uniform layer provides optimal thermal contact. Avoid applying paste to exposed electronics where mechanical pressure could squeeze it into connectors. Store the syringe in a cool, dry place and reseal it after use to preserve consistency and prevent contamination.

## Specifications

### Features

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.0005 kg |

### Packaging data

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

## FAQ

### How much does the Thermal paste QOLTEC 51641 3.05 W/m·K 0.5 g cost, and is it available for purchase?

The price is 3.99 € (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 26.06.2026 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, 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 51641 3.05 W/m·K 0.5 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/767834/56507611_large.webp