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Aircraft Spruce & Specialty Co.
Corona, CA | Chicago, IL
Wasilla, AK | Peachtree City, GA
Brantford, ON Canada
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DOW CORNING DC-4 ELECTRICAL INSULATING COMPOUND - 5.3 OZ TUBE
MFR Model# 4 CMPD 150G TUBE
Dow Corning 4 Electrical Insulating Compound can be applied by hand, specially designed automated equipment, brushing or wiping. Certain designs of grease guns may seize up with silicone compounds; test prior to use.
- High dielectric strength. Highly water repellent.
- Moisture resistant - Good thermal oxidation and chemical stability.
- Retains its grease like consistency from -55ºC(-67ºF) to +200ºC(392ºF).
- Adheres readily to dry metals, ceramics, rubber, plastics, and insulating resins.
- Low volatility. Odorless. Meets MIL-S-8660C.
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DC-4 has so many uses from electrical to lubing oil filter seals. Great product.
May 30, 2020
Shall I use this for air circuit breaker fixed and moving contact
July 6, 2018
The best grease that I have ever found to coat spin on oil filter gaskets. They absolutely will not seize on to the housing when is greece is applied to the gasket surface.
April 13, 2017
Q: The Dow Corning DC-4 Compound used for oil filter gaskets? Part # 09-27700
Yes, Dow Corning DC-4 is commonly on the rubber gasket on an oil filter for a new installation.
Q: Can you use DC-4 on o rings used in avgas fuel systems?
It is not recommended. Parker O-Lube, our p/n 05-00773 would be a better choice.
Q: What size is this Dow Corning DC-4 compound in ounces?
Part # 09-27700 is priced and sold as a 5.3 oz tube.
Q: Can I use DC-4 on hydraulic brake master cylinder o-rings that use the red milspec hydraulic fluid?
A silicone base grease is recommended for o-rings in brake systems. We offer Dow Corning 55, our p/n 08-13684, which is listed in Cleveland's maintenance manual to lubricate cylinder o-rings. The information I found on DC4 does not indicate it can be used for hydraulic systems.