WINKEL 5W42 Threaded Seals – medium strength. For fine threads in hydraulic, pneumatic and general fasteners. Fast curing WINKEL PRO 542 is a medium strength sealing product developed for threaded connections in hydraulic and pneumatic systems. The product cures when applied between metal gears and reacts in an airless environment. It provides sealing against water, compressed air, gas, gasoline, LPG as well as chemical products used in private and industrial facilities. It has high resistance to temperature up to 180°C. Usage: The parts to be applied must be dry, clean and free from oil. Surface cleaning with WINKEL PRO Fast Cleaner is recommended. Apply the product all over the tooth (male and female parts) and assemble the parts. After tightening the gears, do not move them during the drying period. Max. Wait for the full drying time (24 hours) before operating under these conditions. Depending on the type of metal, full drying is maximum 24 hours. If the application temperature is below +5°C, the drying time can be accelerated by using WINKEL PRO Anaerobic Activator. This product is not suitable for sealing systems containing oxygen and strong oxidizing acids.