Uxcell DN65 Silicone Rubber Flat Washer Quick Connector GasketWhat is this? The sealing gasket provides a bearing surface for fastener load distribution or is used as a spacer between components. Are there any advantages of the product? The VMQ seal is good electrical insulation heat and cold resistance ozone resistance weather resistance and is easy to install. How to use it? Mainly used in wrench type quick connector sealing in the chemical industry metallurgy machinery electronics electrical appliances etc.