LOCTITE®577™ is designed for the locking and sealing of metal threaded pipes and fittings. Particularly suitable for use on stainless steel without the need for surface activation. The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. The thixotropic nature of LOCTITE®577™ reduces the migration of liquid product after application to the substrate. LOCTITE® 577™ provides robust curing performance. It not only works on active metals (e.g. brass, copper) but also on passive substrates such as stainless steel and plated surfaces. The product offers gap performance to 0.25 mm (0.01 in), high temperature performance and contamination tolerance. It cures in the presence of minor surface contaminations from various oils, such as cutting, lubrication, anti-corrosion and protection fluids and cleaners containing surfactants and corrosion inhibitors.
| Supplier | |
|---|---|
| Additive Classification | Mold Release Agents |
| Industry | Automotive & Transportation, Building & Construction, Home Renovation, Marine Vessels, Petrochemical, Wind Energy |
| Specific Gravity @ 25 °C | 1.1 |
| Viscosity, Brookfield – RVT, 25 °C, mPa·s (cP): Spindle 6, speed 2.5 rpm |
70,000 to 130,000LMS |
| Viscosity, Brookfield – RVT, 25 °C, mPa·s (cP): Spindle 6, speed 20 rpm |
16,000 to 33,000LMS |
| Flash Point | See SDS |
For Assembly
1. For best results, clean all surfaces (external and internal) with a LOCTITE® cleaning solvent and allow to dry.
2. If the material is an inactive metal or the cure speed is too slow, spray with LOCTITE® SF 7471™ or LOCTITE® SF 7649™ and allow to dry.
3. Apply a 360° bead of product to the leading threads of the male fitting, leaving the first thread free. Force the material into the threads to thoroughly fill the voids. For bigger threads and voids, adjust product amount accordingly and apply a 360° bead of product on the female threads also.
4. Using compliant practices, assemble and wrench tighten fittings in accordance with manufacturers recommendations.
5. Properly tightened fittings will seal instantly to moderate pressures. For maximum pressure resistance and solvent resistance allow the product to cure a minimum of 24 hours.
For Disassembly
1. Remove with standard hand tools.
2. Where hand tools do not work because of excessive engagement length or large diameters (over 1″), apply localized heat to approximately 250 °C (480F). Disassemble while hot.
For Cleanup
1. Cured product can be removed with a combination of soaking in a LOCTITE® solvent and mechanical abrasion such as a wire brush.
Brand:Perkadox®
Chemical family:Organic peroxide
CAS number:94-36-0
Physical form:Granular powder
Chemical name:Dibenzoyl peroxide
Brand:Perkadox®
Chemical family:Organic peroxide
CAS number:94-36-0
Physical form:Granular powder
Chemical name:Dibenzoyl peroxide
Brand:Butanox®
Chemical family:Organic peroxide
CAS number:1338-23-4
Physical form:Liquid
Chemical name:Methyl ethyl ketone peroxide, solution in dimethyl phthalate
Brand:Polylite
Appearance:Hazy
Acid Value:8-15mgKOH/g
Viscosity，25℃:1.8-2.2Pa.s
Solid Content:54-59%
Gelation time,25℃:20-38min
Brand:Polylite
Appearance:Transparent, water-white liquid with a bluish tint
Viscosity:0.75-1.25 25℃, Pa.S
Gel Time:5.6-10.4 25℃, min
Acid Value:18-26 mg KOH/g
Solid Content:64-70 %
Brand:Polylite
Appearance: light yellow transparent liquid
Density: 1.06±0.02kg/L
Viscosity: 430±150 cps (LVT#3-60rpm/25℃)
Solid content: 62±1.5%
Gelation time: 15-25 minutes
