Loctite 577 General Purpose Thread Sealant - 50ml - 250ml
SKU SEL5771
10 available from our warehouse. Despatch times vary.
- Expert UK product support
- Authorised distributor
- 30 day returns
Delivery & returns
Despatch times vary by item. Check the product-specific lead time shown on this page. Supplier-shipped and larger items may take longer.
Delivery options and transit times are shown at checkout. Transit time starts after despatch and excludes weekends and bank holidays unless the selected service states otherwise. Tracking is provided when available.
30 day returns on unused items in original packaging.
Description
Description
Loctite 577 Fast Cure Thread Sealant
Trade Counter Direct offers the Loctite 577 Fast Cure Thread Sealant, a high-strength, general-purpose solution for locking and sealing metal threaded pipes and fittings. Specially formulated for use on stainless steel without the need for surface activation, Loctite 577 is ideal for both parallel and tapered metal threads, ensuring reliable performance in demanding environments.
This non-toxic thread sealant provides instant low-pressure sealing and resists vibration-induced loosening, making it suitable for a wide range of industrial and plumbing applications. Available in 50 ml and 250 ml sizes, Loctite 577 is approved to rigorous international standards, including DVGW, WRAS, and NSF, and meets BS 6956 type B for gas fittings.
Features
- High-pressure, fast cure, and high-strength thread sealant for metal pipes and fittings
- Suitable for use on stainless steel without surface activation
- Non-toxic formulation leaves no particles to foul valves or orifices
- Lubricates during assembly for easier installation
- Provides instant low-pressure sealing
- Resistant to fuel, oil, coolants, and hydraulic fluids
- Locks connections against vibration-induced loosening
- Thixotropic properties prevent migration after application
- Approved to DVGW, WRAS, and NSF standards; meets BS 6956 type B
Specifications
| SKU | Loctite 577 |
|---|---|
| Available Sizes | 50 ml, 250 ml |
| Colour | Yellow |
| Max. Thread Size | M80 / R3" |
| Service Temperature Range | -55°C to +150°C |
| Breakaway Torque | 11 Nm |
| Disassembly Strength | Medium |
| Thixotropy | Yes |
| Approvals | DVGW, WRAS, NSF |
| Standards | EN 751-1, BS 6956 type B |
Delivery & returns
Despatch times vary by item. Check the product-specific lead time shown on this page. Supplier-shipped and larger items may take longer.
Delivery options and transit times are shown at checkout. Transit time starts after despatch and excludes weekends and bank holidays unless the selected service states otherwise. Tracking is provided when available.
30 day returns on unused items in original packaging. Contact us for a returns number before sending anything back.














