LOCTITE 577 TTL250ML EGFD
ID: 2068187
A 1-part, medium-strength, thixotropic, general purpose thread sealant for straight-to-straight and straight-to-taper threaded fittings. Fills the space between threaded parts and seals and locks at the same time.
- Excellent chemical resistance
- Thixotropic for ease of application
- Medium strength for ease of disassembly
- Cures on active and inactive metals
- Registered to NSF Category P1
- DVGW Approval (EN 751-1): DVGW Reg. No. NG-5146CQ0312
- KIWA GASTEC QA AR 214 certified for hydrogen gas systems
€134.53
In stock
How to use it
1. Preparation
Cleaning - It is recommended to use LOCTITE® SF 7063/7064 to degrease and clean surfaces prior to applying adhesive. If cure speed is too slow due to passive metals (stainless steel, aluminium and plated metals) or low temperature (below 5°C), apply activator LOCTITE® SF 7240 or LOCTITE® SF 7649 (see cure speed vs activator graph in the TDS).
2. Application
Apply a 360° bead to the leading male thread, leaving the first thread free. For bigger threads, apply both on male and female threads. For manual dispensing the use of a peristaltic handgun is recommended to ensure a consistent application volume.
3. Assembly
Assemble fittings using wrench tightening in accordance with manufacturers' recommendations.
4. Disassembly
Disassemble with standard hand tools. If not possible, apply localised heat to approximately 250°C; disassemble while hot. For corroded or seized parts use LOCTITE® LB 8040 Freeze and Release.
Technical and safety documents
When you need a general purpose thread sealant with high temperature- and contamination-tolerance, as well as effectiveness on inactive and active metals, choose LOCTITE® 577. Designed for the locking and sealing of threaded metal pipes and fittings, this product provides an instant, low-pressure seal and won’t creep, shrink or shred. Perfect for use on stainless steel without the need for surface activation, it offers gap performance to 0.25 mm (0.01") and will cure even in the presence of minor surface contamination from cutting, lubrication, anti-corrosion and protection fluids, or cleaners containing surfactants and corrosion inhibitors.
Meets the performance requirements of KIWA GASTEC QA AR 214 for admixtures up to and including 100% hydrogen gas – certifications are available in select countries.
| Recommended for use with | Metal, Metal: passive metal, Thread type: tapered |
|---|---|
| Key characteristics | Fluorescent, General purpose, Thixotropic, Strength: medium strength, Chemical resistant, Immediate low pressure sealing, Surface contamination-tolerant, Temperature: high temperature |
| Colour | Yellow |
| Agency approvals / certificates / specifications | NSF, DVGW, WRAS |
| Applications | Thread sealing, Pipe sealing |
| Technology | Acrylic |
| Physical form | Paste |
| Application method | Dispense system, Manual |
| Cure type | Anaerobic cure |
| Viscosity, Brookfield - RVT, @ 25.0 °C | 70000.0 - 130000.0 |
| Viscosity, 20 RPM | 25000.0 mPa·s |
| Operating temperature | -55.0 °C - 150.0 °C ( -65.0 °F - 300.0 °F ) |
| Breakaway torque, Steel M10 | 33.0 N·m ( 295.0 in./lb. ) |
| Pressure resistance | 10000 |
| Status | In Stock |