Hey everyone. Does this eventually harden when applied or does it stay a liquid consistency?

In my experience over 20 years, I have found that Dow Corning 4 retains its original consistency (although I wouldnot describe it as having a liquid consistency).

I'm looking for a conductive grease for the knife blades of disconnects. Any such thing? Something like they use in new disconnects.

I am a high voltage technician, This is routinely used to grease copper blade switches both in the pivot and the movable contact of 5kV and 15kV switches in indoor and outdoor applications. Although it is an insulating grease, the copper has excellent conductivity where the blades meet, not sure how that works but it's the industry standard. Another excellent switch grease is Mobil 28

Can this be used on Spark Plug wire sets thanks

Yes. It will help give you some extra protecting from water splashing underhood and affecting your spark plugs. Principally this would be in older cars, newer ones don't need it, #4 compound is FAMOUS. One tube can literally last you 10 years to a life time. When you have nuts and bolts that are outside if you put this on them. The bolt, all the threads, inside the nut, and then torque it down, it will come off after 20 years like the day you put it on. So if you can't afford stainless steel outside hardware, use zinc coated bolts and nuts and put this on it.

Is this recommended for outdoor coax RG-6 connectors?

This isn't a sealing compound. It is a silicone "grease". Therefore it would wash-off in the outdoor weather.

Dow Corning 4 Electrical Insulating Compound 5 3 Oz 150

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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315.45 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

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Description

⚡ Power up your projects with Dow Corning’s insulating edge!

COMPACT YET POWERFUL - 150g tube fits perfectly in your toolkit without sacrificing performance.
AVOID EQUIPMENT DOWNTIME - Test grease guns before use to prevent seizing—engineered for smooth workflow.
MULTI METHOD APPLICATION - Apply by hand, brush, wipe, or automated equipment for ultimate convenience.
TRUSTED INDUSTRY STANDARD - From Dow Corning, a brand synonymous with quality and innovation.
UNRIVALED ELECTRICAL PROTECTION - Ensures safe, reliable insulation for all your critical wiring needs.

Dow Corning 4 Electrical Insulating Compound is a premium silicone-based insulating grease designed for versatile application methods including hand, brush, wipe, or automated equipment. Packaged in a compact 150g tube, it delivers reliable electrical insulation to protect wiring and components, making it a trusted choice for professionals seeking durable, high-performance solutions.

Reviews

V**P

Very Good Product

We got this part from US and highly satisfied ..

12.02.2019

K**E

Good product in the right application

I have been using this stuff for years. I use a little dab on my spin on oil filter gaskets. Make some come off real easy they don’t stick.

11.10.2024

H**N

Dow Corning 4 is now Dupont 4 and insufficient info is available to compare

Insufficient info on contents or MSDS to compare compounds

30.04.2024

M**T

Perfect toolbox resource

I use this a lot in my job so it's perfect to have my dedicated tube in the top drawer of my toolbox. I have no complaints.

6.10.2024

C**A

Good stuff!

Works as it should but tube oozes product no matter how tightly capped. My previous tube was acquired when I worked for a commuter airline back in 1972 so I expect this one will severely out live me!

2.07.2025

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315.45 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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ASIN	B0195UWAHG
Best Sellers Rank	#94,819 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in Pipe Insulation
Item model number	COMIN18JU007177
Manufacturer	Dow Corning
Package Dimensions	19.99 x 4.9 x 4.09 cm; 45.36 g

Dow Corning 4 Electrical Insulating Compound 5.3 Oz (150 g) Tube

Description

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Reviews

Common Questions