Dow Corning 4 is a low volatility, grease like, electrical insulating compound. It has good thermal oxidation and chemical stability while meeting MIL-S-8660C. The main function of this material is to seal and lubricate cable connectors, rubber door seals, battery terminals, plastic O-rings and rubber. It is also capable of being a lubricant for various metal-on-plastic and metal-on-rubber applications.
This material is a moisture proof seal for automotive, aircraft, marine ignition systems and spark plug connections. It bonds to readily dry ceramics, metals, plastics, rubber and insulating resins. It will retain its grease like consistency in temperatures from -55 to 200 degrees Celsius. Dow Corning 4 Electrical Insulating Compound is water resistant, odorless and provides a high dielectric strength. The appearance of the compound is a translucent white color. This innovative material contains an inert silica filler combined with polydimethyl silicone fluids. Dow Corning 4 is soluble in mineral spirit and methyl ethyl ketone but is insoluble in water, methanol, ethanol and mineral oil. The grease like material is available in pails, tubes and drums.
The understanding of how to apply the material correctly and the limitations and storage information is extremely important. Dow Corning 4 electrical insulating compound should be stored in its original unopened container. The shelf life will be approximately 60 months from the date of production. There is a limitation on this product involving medical and pharmaceutical uses. It has never been tested and is not deemed as suitable. This material can be applied by automated equipment, by hand, brushing or wiping. Some grease guns may seize with silicone compounds. It is recommended to not apply this material on any surface that will be finished or painted. Many of these coatings may not be capable to bond to the silicone-treated surface. Dow Corning 4 is not suitable to be used with liquid oxygen and should not be used in applications that require LOX compatibility. It is recommended to provide adequate ventilation when using this product. Avoid using near heat, flames and sparks. For more information regarding the proper handling precautions, limitations and storage life, visit the Dow Corning 4 MSDS.
Dow Corning 4 Electrical Insulating Compound is designed with some of the best materials provided in the industry. Dow Corning’s innovative engineering style and their advanced technology background has given them the ability to manufacture some of the best materials used to lubricate, seal and adhere to a variety of substrates. Dow Corning 4 is a high performing material that is used as a seal and lubricant in many different industries including aerospace, transportation and industrial assembly. For more information in regards to Dow Corning 4 Electrical Insulating Compound, Contact Krayden Inc., a certified distributor of Dow Corning’s specialty materials. If more information is required of the product, the Dow Corning 4 TDS is available.