Hyloseal 204 is a water based pre-applied threadsealant. The product is applied to threaded fasteners in an automatic production line by means of flow coating the components and then drying the sealant by means of hot air blowers, infra red or air circulating ovens. As the product is water based the applications company has no concerns over exposure to hazardous solvents. The coated fasteners can then be stored ready for use for up to 4 years in dry conditions. Semi automatic methods or even manual application of the product can be used for specialist low volume applications.
The internal lubricants within the Hyloseal 204 ensure the threaded fastener has a controlled on-torque. When assembled the sealant flows into the threads to provide an instant seal. The product seals against most common fluids and gases. Hyloseal 204 ensures all the voids within the threaded fastener are filled ensuring resistance to loosening from vibrations. Hyloseal 204 is listed on the Ford approved products and is used by many other automotive manufacturers.