---
product_id: 654788092
title: "Dow Corning 340 Silicone Heat Sink Compound 5oz 142g White Silicone Thermal Coupling Heat Conductive Grease for Electrical Devices PCB Assemblies Computer CPU Heat Sink Non Flowing"
brand: "sanyi"
price: "AR$154849"
currency: ARS
in_stock: true
category: "Sanyi"
url: https://www.desertcart.com.ar/products/654788092-dow-corning-340-silicone-heat-sink-compound-5oz-142g-white
store_origin: AR
region: Argentina
---

# Dielectric strength 210 V/mil 0.67 W/mK thermal conductivity Non-flowing & non-curing stability Dow Corning 340 Silicone Heat Sink Compound 5oz 142g White Silicone Thermal Coupling Heat Conductive Grease for Electrical Devices PCB Assemblies Computer CPU Heat Sink Non Flowing

**Brand:** sanyi
**Price:** AR$154849
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your tech chill and your workflow unstoppable!

## Quick Answers

- **What is this?** Dow Corning 340 Silicone Heat Sink Compound 5oz 142g White Silicone Thermal Coupling Heat Conductive Grease for Electrical Devices PCB Assemblies Computer CPU Heat Sink Non Flowing by sanyi
- **How much does it cost?** AR$154849 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/654788092-dow-corning-340-silicone-heat-sink-compound-5oz-142g-white)

## Best For

- sanyi enthusiasts

## Why This Product

- Trusted sanyi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Maintains consistency up to 177°C for unbeatable heat stability.
- • **Zero Mess, Zero Stress:** Non-flowing and low-bleed formula keeps your setup clean and reliable.
- • **Electrical Safety First:** Dielectric strength of 210 V/mil protects sensitive circuitry while maximizing heat transfer.
- • **Stay Cool Under Pressure:** High thermal conductivity (0.67 W/mK) ensures your devices run cooler and longer.
- • **Effortless Thermal Mastery:** One-part, grease-like silicone compound—no curing or ovens needed.

## Overview

Dow Corning 340 Silicone Heat Sink Compound is a premium 5oz thermal grease designed for efficient heat transfer between electrical components and heat sinks. Featuring a high thermal conductivity of 0.67 W/mK, non-flowing and non-curing properties, and excellent dielectric strength, it ensures reliable cooling and electrical insulation without the hassle of curing. Ideal for PCB assemblies, CPUs, and power devices, it maintains performance up to 177°C, making it a must-have for professionals demanding durability and peak device efficiency.

## Description

Dow Corning DOWSIL 340 Heat Sink Compound White is a one component, grease like silicone that is used for thermal coupling of electrical components to heat sinks. It is non-flowing, non-curing, thermally conductive, low bleed, and has high temperature stability. 142 g Tube. White, non-flowing, highly filled compound, good thermal conductivity. Uses Designed for thermal coupling of electrical devices and PCB assemblies to heat sinks Benefits Thermally conductive compound 1 part Non flowing No need for ovens or curing Increases reliability with heat flow away from circuitry components Dow Corning 340 Thermal Compound is a grease-like silicone material with a high amount of thermally conductive metal oxide fillers. This compound has high thermal conductivity, low oil bleed and good high temperature stability. The compound can maintain consistency up to about 177°C. Therefore, it helps to maintain a reliable heat sink seal, which will improve the heat transfer from the electrical/electronic components to the heat sink or chassis. Dow Corning 340 Thermal Compound is used for bases and mounting bolts of transistors, diodes and thyristor rectifiers. It can also be used for effective thermal connection of many heat sinks that require effective cooling. Typical Use:Compound provides thermal coupling of electrical/electronic devices to heat sinks, can be applied to the base and mounting studs of transistors, diodes and silicon-controlled rectifiers. Brand:Dow Corning Color:White Components:1 part Dielectric Strength:210 V/mil Flash Point:>101.1 °C Specific Gravity: 2.1 Thermal Conductivity:0.67 W/mK Viscosity:542,000 Volume Resistivity:2 x 10^15 ohm-cm

## Features

- Dow Corning 340 Heat Sink Compound, 5oz 142g one tube, Heat Sink Compound, White color, Thermal coupling, Heat Sink & Conductive, Non-flowing, Non-curing, Low bleed, High temperature stability.
- Designed for thermal coupling of electrical devices and PCB assemblies to heat sinks
- Dielectric Strength:210 V/mil. Flash Point:>101.1 °C. Specific Gravity: 2.1. Thermal Conductivity:0.67 W/mK. Viscosity:542,000. Volume Resistivity:2 x 10^15 ohm-cm.
- Thermally conductive compound, 1 part, Non flowing, No need for ovens or curing, Increases reliability with heat flow away from circuitry components

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DFWHK2GL |
| Best Sellers Rank | #221,411 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,030 in Industrial Lubricants |
| Brand Name | SANYI |
| Compatible Material | Metal |
| Container Type | Tube |
| Customer Reviews | 4.6 4.6 out of 5 stars (29) |
| Flash Point | 101 °C |
| Included Components | Paste, Paste Tube 5oz, Outer Box |
| Item Form | Paste |
| Item Weight | 142 g |
| Liquid Volume | 5 fluid ounces |
| Manufacturer | Molykote |
| Material | Silicone |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 340 |
| Recommended Uses For Product | Electrical |
| SAE J300 Viscosity Grade | 0W-16 |
| Unit Count | 5 Ounce |

## Product Details

- **Brand:** SANYI
- **Item Weight:** 142 g
- **Liquid Volume:** 5 fluid ounces
- **Material:** Silicone
- **Package Information:** Tube

## Images

![Dow Corning 340 Silicone Heat Sink Compound 5oz 142g White Silicone Thermal Coupling Heat Conductive Grease for Electrical Devices PCB Assemblies Computer CPU Heat Sink Non Flowing - Image 1](https://m.media-amazon.com/images/I/61IqM9VEPLL.jpg)

## Frequently Bought Together

- Dow Corning 340 Silicone Heat Sink Compound 5oz 142g White Silicone Thermal Coupling Heat Conductive Grease for Electrical Devices PCB Assemblies Computer CPU Heat Sink Non Flowing
- GENNEL G109 10gram Thermal Conductive Glue, Heatsink Silicone Glue, Thermal Plaster, Silicone Viscous Adhesive Compound for LED GPU MOSFET Printer Chipset IC High Performance

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.ar/products/654788092-dow-corning-340-silicone-heat-sink-compound-5oz-142g-white](https://www.desertcart.com.ar/products/654788092-dow-corning-340-silicone-heat-sink-compound-5oz-142g-white)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-10-04*