DIMETHYLETHER Chemical compatibility with O-rings, rubbers, & plastics

Dimethyl ether, also known as DME or methoxymethane with the formula C2H6O, is a colorless, highly flammable gas with a faint odor used as a propellant, refrigerant, and chemical intermediate. In pressurized equipment, it may contact O-rings, rubber seals, gaskets, and plastic components, so compatibility review is important to reduce the risk of swelling or loss of sealing performance. Exposure can cause skin and respiratory irritation. Proper storage, ventilation, handling controls, and appropriate PPE are essential for safe operation.

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