---
product_id: 81542250
title: "Dow Corning DC 4 Electrical Insulating Compound - 5.3 oz Tube"
brand: "corning"
price: "9782 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Corning"
url: https://www.desertcart.is/products/81542250-dow-corning-dc-4-electrical-insulating-compound-5-3-oz
store_origin: IS
region: Iceland
---

# Electrical Insulation Compact Size 5.3 oz Tube Dow Corning DC 4 Electrical Insulating Compound - 5.3 oz Tube

**Brand:** corning
**Price:** 9782 kr
**Availability:** ✅ In Stock

## Summary

> 🔌 Insulate with Confidence: Your Go-To for Electrical Safety!

## Quick Answers

- **What is this?** Dow Corning DC 4 Electrical Insulating Compound - 5.3 oz Tube by corning
- **How much does it cost?** 9782 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/81542250-dow-corning-dc-4-electrical-insulating-compound-5-3-oz)

## Best For

- corning enthusiasts

## Why This Product

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

## Key Features

- • **Easy to Use:** Squeeze tube design for mess-free application.
- • **Trusted Brand:** Manufactured by Dow Corning, a leader in silicone technology.
- • **Durable Formula:** Resistant to moisture and temperature fluctuations.
- • **Unmatched Protection:** Safeguard your electrical components with superior insulation.
- • **Versatile Application:** Perfect for a variety of electrical projects, big or small.

## Overview

Dow Corning DC 4 Electrical Insulating Compound is a high-performance silicone-based product designed to provide exceptional electrical insulation. Packaged in a convenient 5.3 oz tube, it is perfect for both professional and DIY electrical projects, ensuring reliable protection against moisture and temperature variations.

## Description

Dow Corning DC-4 Electrical Insulating Compound 5.3oz Tube

Review: Helps prevent corrosion and keeps contacts clean - I bought a 1962 Mooney airplane once from a fellow who had a dry dock where they repaired barges and other vessels used in salt water. He gave me a tube of DOW DC 4 electrical insulating compound and suggested I use it on every power electrical contact I took apart. The Airframe & Powerplant mechanic who inspected my work bought some DOW #4 and started using it in his shop. That half tube lasted years and when it was gone I tried a variety of other greases, silicone, and electrical compounds. None lasted as well or worked as well at the DOW #4. I've used this on several late 50's Triumph TR3s with those darn Lucas bullet connectors which always get corroded. This won't remove corrosion but used when making repairs or replacing connectors it helps prevent corrosion and stays on the connection. Some of the products I tried just didn't last. After six months you could not tell that anything had been applied. Some of the silicone greases just dried up and were hard. I also use a dab of DOW #4 on the modern 'water proof' electrical connectors. They go together and come apart easier. I just replaced the entire wire harness in a late 50's Austin and every power connection (Lucas bullet connectors again) and socket in the entire car got some DOW #4. Under the dash and interior I used just a light wipe on the connections. In the engine compartment and under the car the connections, especially the ground connections, got a slight dab. This tube will probably last as long as I am still working on vehicles but if it doesn't I'll get more and not try any alternatives. This works, and lasts.
Review: Buy two. - Man, I love this stuff. After I’d bought a former military HMMWV, I began going through the harnesses replacing the cracked/rotted Packard connectors, making harnesses for additional things like backup lights, light bar, etc. One of the sayings among FMV owners is “if it’s electric, clean it, if it’s rubber, change it” to which I add, use some Deoxit on the contacts and Dow Corning DC4 dielectric grease on the rubber parts. I’ve been led to believe that, unlike lighter silicone oils/sprays, this won’t soften/degrade the rubber connectors and it helps make a more easily removed connection and helps keep water out. Makes the rubber look shinier and new for years. I’ve used it on door seals, rubber grommets, wheel o-rings and more. You can use it on stainless steel screws/bolts to keep the nuts from galling. It’s really great stuff, also great for schmearing on battery terminals to keep them from oxidizing. I went through an entire tube in about six months, half the next one in the next year or so, just bought another tube “for later.” Try it, you’ll like it.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001VXSAI4 |
| Best Sellers Rank | #195,626 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #317 in Silicone Adhesives |
| Brand | Corning |
| Customer Reviews | 4.6 4.6 out of 5 stars (75) |
| Date First Available | October 3, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5.9 ounces |
| Manufacturer | Dow Corning |
| Manufacturer Part Number | 1927574 |
| Package Dimensions | 8.19 x 2.09 x 1.73 inches |

## Images

![Dow Corning DC 4 Electrical Insulating Compound - 5.3 oz Tube - Image 1](https://m.media-amazon.com/images/I/519YrYwJA1L.jpg)

## Questions & Answers

**Q: Is this the updated one?**
A: I don't know if this is the updated one but it does separate. it make a real mess if you aren't careful

**Q: High temperature?**
A: DC4, also called Molykote4, has a specified usable temperature range of -40 to +200 degrees C (or approx -40 to +390 degrees F).  It is not intended for extreme high temperature use.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Helps prevent corrosion and keeps contacts clean
*by J***S on June 20, 2023*

I bought a 1962 Mooney airplane once from a fellow who had a dry dock where they repaired barges and other vessels used in salt water. He gave me a tube of DOW DC 4 electrical insulating compound and suggested I use it on every power electrical contact I took apart. The Airframe & Powerplant mechanic who inspected my work bought some DOW #4 and started using it in his shop. That half tube lasted years and when it was gone I tried a variety of other greases, silicone, and electrical compounds. None lasted as well or worked as well at the DOW #4. I've used this on several late 50's Triumph TR3s with those darn Lucas bullet connectors which always get corroded. This won't remove corrosion but used when making repairs or replacing connectors it helps prevent corrosion and stays on the connection. Some of the products I tried just didn't last. After six months you could not tell that anything had been applied. Some of the silicone greases just dried up and were hard. I also use a dab of DOW #4 on the modern 'water proof' electrical connectors. They go together and come apart easier. I just replaced the entire wire harness in a late 50's Austin and every power connection (Lucas bullet connectors again) and socket in the entire car got some DOW #4. Under the dash and interior I used just a light wipe on the connections. In the engine compartment and under the car the connections, especially the ground connections, got a slight dab. This tube will probably last as long as I am still working on vehicles but if it doesn't I'll get more and not try any alternatives. This works, and lasts.

### ⭐⭐⭐⭐⭐ Buy two.
*by N***B on February 27, 2019*

Man, I love this stuff. After I’d bought a former military HMMWV, I began going through the harnesses replacing the cracked/rotted Packard connectors, making harnesses for additional things like backup lights, light bar, etc. One of the sayings among FMV owners is “if it’s electric, clean it, if it’s rubber, change it” to which I add, use some Deoxit on the contacts and Dow Corning DC4 dielectric grease on the rubber parts. I’ve been led to believe that, unlike lighter silicone oils/sprays, this won’t soften/degrade the rubber connectors and it helps make a more easily removed connection and helps keep water out. Makes the rubber look shinier and new for years. I’ve used it on door seals, rubber grommets, wheel o-rings and more. You can use it on stainless steel screws/bolts to keep the nuts from galling. It’s really great stuff, also great for schmearing on battery terminals to keep them from oxidizing. I went through an entire tube in about six months, half the next one in the next year or so, just bought another tube “for later.” Try it, you’ll like it.

### ⭐⭐⭐⭐⭐ This stuff works!!
*by M***N on December 3, 2021*

I have used this for electrical projects for most all of 25 years, never disappointed with it.

## Frequently Bought Together

- Dow Corning DC 4 Electrical Insulating Compound - 5.3 oz Tube
- Molykote DOW 111 Lubricant & Sealant, 5.3 oz. Tube
- Dow Corning Molykote 55 Oring Grease 5.3oz

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-23*