Welcome to Supex
Welcome to Supex
Supex 577 is a medium-strength anaerobic thread sealant designed for fast, reliable sealing of metal threaded pipes and fittings. It provides an instant low-pressure seal, resists vibration and chemicals, and works effectively on stainless steel, brass, and other metals. Ideal for plumbing, HVAC, and mechanical assemblies where leak-proof performance and easy disassembly are required.
100% Authentic products
25+ Years of expertise
Pan-India delivery
100% Authentic products
25+ Years of expertise
Pan-India delivery
Need a reliable thread sealant for metal pipe connections?
Supex 577 is a medium-strength anaerobic thread sealant designed to seal metal threaded pipes and fittings.
It cures when confined between close-fitting metal surfaces, helping create a secure seal against leakage. It also helps resist loosening caused by vibration while allowing disassembly with suitable tools.
Supex 577 is designed for suitable threaded connections in plumbing, industrial equipment, hydraulic and pneumatic systems, and mechanical assemblies.
Looking for an industrial thread sealant for your application? Contact Supex to discuss product suitability, technical requirements and pricing.
Contact Our Technical Team: Call/ Whatsapp: +91 9699892782
A reliable threaded connection needs more than mechanical tightening. The sealing method must also suit the thread type, fluid, pressure and operating conditions.
Supex 577 offers the following benefits for suitable metal-threaded connections.
Reliable Thread Sealing
The liquid sealant fills suitable gaps between engaged metal threads. This helps reduce leakage through the threaded connection.
Medium-Strength Performance
Supex 577 is described as a medium-strength thread sealant. It is designed to provide sealing while allowing later disassembly with suitable tools.
Resistance to Vibration
The cured sealant helps resist loosening caused by vibration. This can be useful in suitable industrial and mechanical assemblies.
Clean Application
The liquid formulation can be applied directly to the threads. It avoids the loose strips associated with PTFE tape when the product is correctly applied.
Broad Metal Compatibility
The product is intended for suitable metal-threaded connections. Always check the technical data sheet for compatibility with the exact metals and operating conditions.
Support for Industrial Maintenance
Thread sealant can help reduce leakage-related maintenance when the correct product is selected and applied according to instructions.
Need help selecting a thread sealant? Share your thread type, application and operating conditions with Supex.
Supex 577 is designed for suitable metal-threaded connections across several applications.
Threaded connections are widely used in industrial piping systems.
Supex 577 can help seal compatible metal pipe threads where its pressure, temperature and chemical-resistance limits meet the application requirements.
Metal pipe fittings in plumbing systems may require a thread sealant to prevent leakage.
Choose a product approved for the specific service. For drinking-water systems, confirm the required potable-water certification before use.
Hydraulic equipment relies on secure connections to maintain system performance.
Supex 577 may be suitable for compatible threaded connections, subject to the fitting design, fluid, pressure and manufacturer’s instructions.
Do not assume it is suitable for every hydraulic fitting or high-pressure connection.
Pneumatic equipment uses threaded connections to carry compressed air.
A suitable thread sealant can help prevent leakage through compatible metal threads. Confirm that the product is approved for the system’s pressure and service conditions.
Machinery often contains threaded pipe fittings and fluid connections exposed to vibration.
Supex 577 can help seal suitable connections and resist vibration-related loosening.
Certain mechanical assemblies use threaded metal fittings for fluids or other services.
Check the product documentation before use. Compatibility depends on the materials, fluid, temperature and connection design.
Some metal combinations are harder to seal or may cure more slowly with anaerobic products.
Check the manufacturer’s guidance for stainless steel, brass, aluminium and other specific metals. An approved activator may be needed in certain applications.
Not sure whether Supex 577 is suitable for your system? Contact Supex with details of the metal, thread standard, fluid and operating conditions.
Anaerobic thread sealant is a liquid material that cures when air is excluded from the joint and suitable metal surfaces are in contact.
Here is how it works:
The time needed to reach handling strength and full cure depends on the product, metal surfaces, temperature and gap size.
Do not assume that a connection is ready for full operating pressure just because it has been assembled. Follow the technical data sheet for curing and pressurisation requirements.
Correct application helps improve sealing performance and reduce the risk of leaks.
Step 1: Clean the Threads
Remove oil, grease, dirt and other contaminants from the threaded surfaces.
Use a suitable cleaner, such as Supex SF 7063 where compatible, or another approved degreaser. Allow the surfaces to dry as directed.
Step 2: Inspect the Connection
Check the threads for damage, wear or contamination.
Confirm that the thread type and fitting design are suitable for the application. Thread sealant cannot compensate for damaged or incompatible connections.
Step 3: Apply the Sealant
Apply a continuous bead of Supex 577 to the specified thread engagement area.
Follow the product instructions for the amount and position of application. Avoid excessive application that could introduce sealant into sensitive system components.
Step 4: Assemble the Fitting
Join the components and tighten them according to the fitting manufacturer’s recommended procedure.
Do not use sealant as a substitute for the correct tightening method or torque.
Step 5: Allow the Sealant to Cure
Allow sufficient time for curing before exposing the connection to service pressure.
The product page lists a full cure time of approximately 24 hours. Actual curing can vary with the metal, temperature and application conditions.
Step 6: Check the Completed Joint
Follow the system manufacturer’s procedure for leak testing and commissioning.
Use the appropriate test method for the service. Never check for gas leaks with an open flame.
Important: Follow the latest Supex technical data sheet and safety data sheet for application, curing, handling and pressurisation instructions.
Choosing the right thread-sealing method depends on the connection, operating conditions and maintenance requirements.
| Feature | Supex 577 Anaerobic Thread Sealant | PTFE Tape | Traditional Pipe Jointing Compound |
|---|---|---|---|
| Form | Liquid sealant | Tape | Paste or compound |
| Application | Applied to suitable threads | Wrapped around threads | Applied according to product instructions |
| Sealing mechanism | Cures within an assembled metal-threaded joint | Fills thread clearances when assembled | Depends on formulation |
| Loose material | No tape strips | Tape may shred if applied or assembled incorrectly | Depends on formulation |
| Vibration resistance | Helps resist loosening when correctly used | Depends on fitting and application | Product-dependent |
| Disassembly | Medium-strength formulation; suitable tools may be required | Usually straightforward | Depends on formulation |
| Suitable materials | Confirm metal compatibility | Depends on tape and service | Depends on product |
| Best selection criteria | Thread type, metal, fluid, pressure and temperature | Thread and service compatibility | Product approvals and service requirements |
Choose an anaerobic thread sealant when:
Consider PTFE tape when:
Consider a pipe jointing compound when:
No single method is best for every connection. Always follow the fitting manufacturer’s instructions and applicable industry standards.
| Property | Listed specification |
|---|---|
| Product name | Supex 577 Thread Sealant |
| Product type | One-component anaerobic thread sealant |
| Strength | Medium |
| Chemistry | Acrylic-based anaerobic formulation |
| Appearance | Yellow paste, fluorescent under UV |
| Viscosity | Approximately 25,000–100,000 cP |
| Maximum gap fill | Up to 0.25 mm |
| Temperature range | −55°C to +150°C |
| Full cure time | Approximately 24 hours |
| Breakaway torque | Approximately 12–33 N·m on M10, depending on test conditions |
| Shelf life | Listed as 18 months |
Technical values are provided for reference. Actual performance depends on joint design, substrate, curing conditions and the applicable test method. Consult the current technical documentation for approved uses and limitations.
Thread sealant is a material used to seal threaded connections and help prevent fluid or gas leakage. The correct product depends on the thread, fitting material and service conditions.
Anaerobic thread sealant is a liquid formulation that cures when confined between suitable metal surfaces in the absence of air. It fills suitable gaps between the threads to create a seal.
Supex 577 is designed for suitable metal-threaded pipe fittings and mechanical connections. Potential applications include industrial piping, plumbing, and hydraulic or pneumatic systems, subject to the product’s technical limits.
The product page lists stainless steel among its intended metal applications. However, curing can vary with the metal. Confirm compatibility and whether an activator is required before use.
An anaerobic thread sealant can replace PTFE tape in suitable connections when the fitting design and service requirements permit it. It is not a universal replacement. Always follow the fitting manufacturer’s recommendations.
Do not assume that Supex 577 is suitable for plastic threads. Anaerobic thread sealants are generally intended for compatible metal connections. Confirm the product manufacturer’s guidance before using any sealant on plastics.
The product page lists a full cure time of approximately 24 hours. Actual curing depends on the metal surfaces, temperature, gap size and use of an approved activator.
Supex 577 is described as a medium-strength sealant. Disassembly may be possible with suitable tools, but the required force depends on the connection and curing conditions.
Use it only if the product’s documentation confirms suitability for the specific gas, pressure, fitting and applicable regulations. Do not assume that a general thread sealant is approved for every gas installation.
Confirm the required potable-water approval and service compatibility with Supex before using the product in drinking-water systems.
The product page lists a service temperature range of approximately −55°C to +150°C. Verify the current technical data sheet and confirm that the actual operating conditions fall within the approved limits.
Contact Supex with your required quantity, application, thread type and operating conditions. The team can help you request product pricing and the relevant technical documentation.
Looking for other industrial sealing or assembly solutions?
Choose products according to their intended purpose. Thread sealants, threadlockers, flange sealants and flexible joint sealants perform different functions.
Looking for an anaerobic thread sealant for your industrial or plumbing application?
Supex 577 is designed for sealing suitable metal-threaded connections where medium-strength performance is required.
Tell us about your application, required quantity and operating conditions.
Our team can help you explore product suitability, pricing and technical documentation.
Supex 577 is suitable for sealing and locking metal threaded connections across a wide range of systems and industries. It is commonly used in hydraulic and pneumatic lines, heating and cooling pipelines, and gas or water fittings. The product performs exceptionally well on stainless steel threads and is widely used in industrial machinery, automotive assemblies, and professional plumbing installations.
Ensure the threads are thoroughly cleaned using a degreaser such as Supex SF 7063 or an equivalent product.
Apply a continuous bead of Supex 577 to the male threads, making sure the adhesive covers the engagement area.
Assemble the parts and tighten to the required torque.
Allow the sealant to cure for 24 hours to reach full strength. For passive metals or faster curing needs, use an activator to accelerate the process.
| Type | 1-part, medium-strength anaerobic sealant (acrylic) for metal threads |
|---|---|
| Color | Yellow paste – fluorescent under UV |
| Viscosity | ~25,000–100,000 cP (thixotropic, non-slumping) |
| Gap Fill | Up to 0.25 mm (0.01″) |
| Temperature Range | −55°C to +150°C (−65°F to +300°F) |
| Cure Time | Instant low-pressure seal; full cure in ~24 hours (faster with activator) |
| Breakaway Torque (M10) | ~12–33 N·m depending on test conditions |
| Weight | 15kg |
|---|---|
| Dimensions | 42 × 20 × 24 cm |
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