# Thermal paste QOLTEC 51645 — thermal conductivity 3.17 W/m·K, 1 g, silver

**URL:** https://aio.lv/en/product--qoltec-51645--767838
**Data updated:** 2026-03-07 10:54 (EET)
**Category:** Thermal Paste
**Manufacturer:** QOLTEC
**Manufacturer code:** 51645
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-10 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-51645--767838

## 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 51645 is a thermal paste with thermal conductivity 3.17 W/m·K and thermal resistance 0.067 °C/W supplied in a 1 g pack. Silver-coloured compound designed to improve heat transfer between CPU/GPU or other electronic components and heatsinks. Suitable for small repairs, upgrades and maintenance where a thin, conductive interface is required.

## Long description

QOLTEC 51645 is a silver-coloured thermal paste formulated to improve heat transfer between CPUs, GPUs and heatsinks. With a thermal conductivity of 3.17 W/m·K and thermal resistance of 0.067 °C/W supplied in a 1 g pack, the compound is intended for small repairs, upgrades and maintenance where a thin, thermally conductive interface is required. The paste is easy to apply, fills micro-gaps between the processor and cooling base, and is designed to retain its properties during prolonged use.
Advantages
The compound offers relatively high thermal conductivity for its class while remaining electrically non-destructive in ordinary applications. Its silver colour and smooth consistency allow accurate placement and even spreading on small surfaces. Supplied in a compact 1 g package, it suits targeted interventions and component-level maintenance without excess material waste.
Suitable for
Thermal interface between CPU or GPU and heatsink during repairs or upgrades
Cooling contact for small electronics and single-board computers
Replacement or topping-up of degraded thermal compound in laptops, desktops or graphics cards
Prototyping and testing where a thin, conductive thermal layer is needed
Key specifications
Thermal conductivity: 3.17 W/m·K
Thermal resistance: 0.067 °C/W
Weight: 1 g
Colour: Silver
Form: paste for thermal interface use
How to use
Clean both mating surfaces (processor and heatsink) from old compound, dust and grease using isopropyl alcohol and a lint-free cloth. Apply a small, pea-sized amount of QOLTEC 51645 to the centre of the processor die or use a thin line/dot according to the CPU/GPU package. Mount the heatsink and secure it with even pressure so the paste spreads into a thin, continuous layer. After assembly, power the system and verify operating temperatures under typical load to ensure correct coverage and thermal contact.
Usage recommendations
Store the product at room temperature in a dry place and avoid contamination of the paste with dirt or fingers. Use a minimal, even amount to avoid excess squeeze-out; for repeated disassembly, clean and replace the paste rather than reusing contaminated residue. Not intended as an electrical conductor; avoid applying to exposed electrical contacts.

## Specifications

### Features

| Feature | Value |
|---|---|
| Product colour | Silver |
| Thermal resistance | 0.067 °C/W |
| Thermal conductivity | 3.17 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 51645 — 3.17 W/m·K, 1 g cost, and is it available for purchase?

The price is 15.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 898 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.

### Where can I download the instructions for Thermal paste QOLTEC 51645 — 3.17 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/767838/56507614_large.webp