---
product_id: 90080190
title: "G641 Silicone Heat Sink Grease Compound, 5 oz Tube"
brand: "novagard"
price: "$33.21"
currency: USD
in_stock: false
reviews_count: 2
url: https://www.desertcart.us/products/90080190-g641-silicone-heat-sink-grease-compound-5-oz-tube
store_origin: US
region: United States of America
---

# High dielectric constant for electrical safety Wide temp range -60°F to 400°F 5 oz tube - easy, precise application G641 Silicone Heat Sink Grease Compound, 5 oz Tube

**Brand:** novagard
**Price:** $33.21
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Keep your electronics cool and charged with pro-grade precision!

## Quick Answers

- **What is this?** G641 Silicone Heat Sink Grease Compound, 5 oz Tube by novagard
- **How much does it cost?** $33.21 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/90080190-g641-silicone-heat-sink-grease-compound-5-oz-tube)

## Best For

- novagard enthusiasts

## Why This Product

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

## Key Features

- • **Thermal Mastery:** Optimized heat transfer for peak device performance
- • **Electrical Shield:** High dielectric strength prevents charge leakage
- • **Durable Consistency:** Oil separation resistant white paste for lasting reliability
- • **Pro-Grade Convenience:** 5 oz tube designed for clean, controlled application every time
- • **Versatile Compatibility:** Perfect for thermocouples, diodes, transistors & semiconductors

## Overview

The Novagard G641 Silicone Heat Sink Grease Compound is a 5 oz tube of high-performance thermal paste engineered for electronic and electrical components. It offers a broad temperature tolerance from -60°F to 400°F, a high dielectric constant for electrical insulation, and a stable, oil-resistant white paste consistency. Ideal for thermocouples, power diodes, transistors, and semiconductors, it ensures efficient heat dissipation and long-lasting reliability in demanding industrial and professional applications.

## Description

The Novagard G641 is a 5 oz. tube of silicone heat sink grease compound that provides thermal conductivity, a high dielectric constant, and a long shelf-life for use in electric and electronic applications such as thermocouple wells, power diodes, transistors, semiconductors, and ballasts. The compound is formulated with polydimethyl siloxane fluids with metallic oxide fillers. It has a temperature range of -60 to +400 degrees F (-51 to 204 degrees C). The compound resists oil separation and has a white paste consistency.Industrial lubricants can be found in most machinery performing one or more functions, including reducing friction and wear, preventing components from adhering to each other, distributing loads more evenly, dispersing heat away from moving parts, and preventing corrosion. Although many materials are used as lubricants, the most common are oil (also called fluid lubricants) and grease because of their versatility. Oil lubricants contain either a petroleum or synthetic base, the properties of which are modified by the addition of various additives. Grease lubricants, a mixture of oil lubricant and a thickening agent, have a thicker consistency than oil, enabling use wherever liquids cannot be retained and requiring less frequent changes.Novagard Solutions manufactures industrial adhesives, sealants, and lubricants. The company, founded in 1977, is headquartered in Cleveland, OH.

Review: quick delivery, quality product - I was unable to purchase thermally conductive compound which I needed for my project. Buying thru desertcart, I recived a quality product at a discounted price with no running around.
Review: Novagard G641 Thermal Compound - This product was exactly what I had hoped it would be. It is a heavy opaque white compound that I am using between heat producing solid state devices and their heat sinks, and it performs well. I have noticed no separation of oil and it does for me, exactly what I wanted it to do at a price substantially less than other choices.

## Features

- Silicone heat sink grease compound for lubricating parts and facilitating thermal conductivity in electric and electronic applications
- For use on thermocouple wells, power diodes, transistors, semiconductors, and ballasts
- Provides a high dielectric constant for holding an electric charge and resists oil separation
- Temperature range of -60 to +400 degrees F (-51 to 204 degrees C)
- White paste consistency

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00378LLUA |
| Date First Available | February 9, 2010 |
| Item Weight | 5.6 ounces |
| Manufacturer | Novagard Solutions |
| Package Dimensions | 5.1 x 1 x 0.3 inches |

## Images

![G641 Silicone Heat Sink Grease Compound, 5 oz Tube - Image 1](https://m.media-amazon.com/images/I/31qghqVC5TL.jpg)
![G641 Silicone Heat Sink Grease Compound, 5 oz Tube - Image 2](https://m.media-amazon.com/images/I/5183U9kzaHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ quick delivery, quality product
*by G***1 on January 19, 2014*

I was unable to purchase thermally conductive compound which I needed for my project. Buying thru Amazon, I recived a quality product at a discounted price with no running around.

### ⭐⭐⭐⭐⭐ Novagard G641 Thermal Compound
*by G***7 on February 20, 2011*

This product was exactly what I had hoped it would be. It is a heavy opaque white compound that I am using between heat producing solid state devices and their heat sinks, and it performs well. I have noticed no separation of oil and it does for me, exactly what I wanted it to do at a price substantially less than other choices.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-26*