# Thermal paste QOLTEC 51642 heat sink compound 3.05 W/m·K, 5 g, gold

**URL:** https://aio.lv/en/product--qoltec-51642--767835
**Data updated:** 2026-03-07 10:54 (EET)
**Category:** Thermal Paste
**Manufacturer:** QOLTEC
**Manufacturer code:** 51642
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.99 €
**Prices and availability valid until:** 2026-07-10 23:59
**Price without VAT (21%):** 15.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-51642--767835

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

QOLTEC 51642 is a heat sink compound (thermal paste) with thermal conductivity 3.05 W/m·K and thermal resistance 0.073 °C/W. Supplied in a 5 g pack, its gold-coloured formula is intended for improving heat transfer between components and heatsinks in CPUs, GPUs, power electronics and cooling assemblies. Useful for maintenance, upgrades and thermal performance tuning.

## Long description

QOLTEC 51642 heat sink compound is a gold-coloured thermal paste formulated to improve heat transfer between electronic components and their cooling systems. With a thermal conductivity of 3.05 W/m·K and thermal resistance of 0.073 °C/W, this 5 g pack is designed for use in CPUs, GPUs, power electronics and other assemblies where efficient thermal coupling is required. The compound fills micro-gaps and surface irregularities to reduce thermal impedance and is offered in a compact tube for maintenance, upgrades and thermal performance tuning.
Advantages
The paste combines relatively high thermal conductivity with electrical insulation, enabling safe use around sensitive circuits while enhancing heat flow to heatsinks. Its gold-coloured formula is easy to apply and spreads evenly to create a thin, consistent thermal interface. The product maintains its properties over extended periods, reducing the need for frequent reapplication during regular maintenance cycles.
Suitable for
Applying between CPUs or GPUs and their heatsinks during builds or upgrades
Improving thermal contact in power electronics and voltage regulators
Maintenance of cooling systems in desktops, workstations and compact systems
Thermal tuning and optimization in custom cooling assemblies
Key specifications
Thermal conductivity: 3.05 W/m·K
Thermal resistance: 0.073 °C/W
Net weight: 5 g
Colour: Gold
Electrical behaviour: thermally conductive, electrically insulating
How to use
Clean both mating surfaces thoroughly to remove old compound, dust and grease. Apply a small, pea-sized amount of thermal paste to the centre of the processor or component surface, or use a thin line or cross pattern depending on the component size and manufacturer guidance. Mount the heatsink with even pressure to spread the compound into a thin, uniform layer. Remove and reapply the paste if the heatsink is removed for servicing; otherwise a single proper application will typically remain effective for long-term use.
Usage recommendations
Use minimal amounts to avoid excess squeeze-out; ensure even mounting pressure and avoid touching the contact surfaces after cleaning. Store the tube in a cool, dry place and keep the cap closed to prevent drying. For best thermal results, follow the component or motherboard manufacturer’s guidance on paste amounts and application patterns.

## 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 | 0.005 kg |

### Packaging data

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

## FAQ

### How much does the Thermal paste QOLTEC 51642 3.05 W/m·K 5 g cost, and is it available for purchase?

The price is 18.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 586 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 02.07.2026 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.

## Image

https://aio.lv/img/cache/product/767835/56507612_large.webp