The FL 577 High Viscosity Pipe Thread Lock - 50ml (Yellow) is a high-performance thread sealant designed to provide a secure, leak-resistant seal on threaded pipe connections used in industrial, automotive, hydraulic, pneumatic, and plumbing applications. Formulated with a high-strength, high-viscosity anaerobic compound, it effectively fills gaps between coarse threads to prevent leakage caused by pressure, vibration, and fluid movement. Its fast-curing formula creates a durable seal that helps lock threaded joints in place while protecting them against loosening and corrosion. Specifically engineered for use on high-pressure conical and straight threaded fittings below M80, FL 577 offers dependable long-term performance in demanding working environments. Supplied in a convenient 50ml bottle, this yellow thread sealant is ideal for professional assembly, maintenance, repairs, and equipment servicing where reliable thread sealing is essential.
High-Strength Thread Sealant: Formulated to create a durable, high-strength seal that securely locks threaded pipe connections while helping prevent loosening caused by vibration, pressure changes, and continuous operation. It provides reliable sealing performance for industrial machinery, automotive systems, plumbing installations, hydraulic equipment, and general engineering applications where dependable threaded joints are essential.
High Viscosity Formula for Coarse Threads: The high-viscosity formulation is specifically developed to fill the larger clearances commonly found on coarse threaded fittings. By sealing the gaps between mating threads, it helps prevent fluid and gas leaks while providing consistent sealing performance across a wide variety of threaded pipe connections operating under demanding conditions.
Fast Curing for Efficient Assembly: Designed with a fast-curing anaerobic formula, FL 577 quickly develops a secure seal after application, helping reduce assembly times and minimise equipment downtime. The rapid curing properties make it an excellent choice for production facilities, maintenance workshops, repair technicians, and field service operations where efficiency and productivity are important.
Suitable for High-Pressure Cones and Straight Threads: Specifically formulated for use on high-pressure conical and straight threaded fittings below M80, this thread sealant provides reliable leak prevention and secure thread locking in demanding applications. It is suitable for hydraulic systems, pneumatic installations, industrial equipment, plumbing systems, and mechanical assemblies requiring dependable sealing performance.
Helps Prevent Leaks and Corrosion: By creating a reliable seal between threaded components, FL 577 helps prevent the escape or ingress of liquids and gases while protecting threads against corrosion, contamination, and environmental exposure. This contributes to improved equipment reliability, reduced maintenance requirements, and extended service life for threaded assemblies.
Convenient 50ml Bottle with Yellow Formula: Supplied in a practical 50ml bottle, this thread sealant allows for clean, accurate application with minimal waste. The yellow colour provides excellent visibility during assembly, making it easier to confirm complete thread coverage while ensuring a professional finish during installation and maintenance.
The FL 577 High Viscosity Pipe Thread Lock - 50ml (Yellow) combines high strength, high viscosity, and fast-curing performance to provide dependable sealing for threaded pipe connections. Designed for coarse threads and high-pressure conical and straight fittings below M80, it offers reliable leak prevention, corrosion protection, and long-lasting joint security, making it an ideal choice for professional industrial, automotive, plumbing, and engineering applications.
Please refer to the image to ensure suitability.
What's in the box
1 x Thread Lock - 50ml
