LOCTITE® 620 is designed for the bonding of cylindrical fitting parts. The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. Typical applications include locating pins in radiator assemblies, sleeves into pump housings and bearings in auto transmissions. Particularly suitable for applications where temperature resistance up to 200°C is required.
| Supplier | |
|---|---|
| Additive Classification | Mold Release Agents |
| Industry | Automotive & Transportation, Building & Construction, Home Renovation, Marine Vessels, Petrochemical, Wind Energy |
Flash PointSee SDS
| Specific Gravity @ 25 °C | 1.16 |
| Viscosity, Brookfield – RVT, 25 °C, mPa·s (cP): Spindle 5, speed 20, rpm |
5,000 to 12,000LMS |
| Viscosity, EN 12092 – MV, 25 °C, after 180 s, mPa·s (cP): Shear rate 129 s-1 |
1,200 to 2,400 |
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 Activator 7471™ or 7649™ and allow to dry.
3. Shake the product thoroughly before use.
4. For Slip Fitted Assemblies, apply adhesive around the leading edge of the pin and the inside of the collar and use a rotating motion during assembly to ensure good coverage.
5. For Press Fitted Assemblies, apply adhesive thoroughly to both bond surfaces and assemble at high press on rates.
6. For Shrink Fitted Assemblies the adhesive should be coated onto the pin, the collar should then be heated to create sufficient clearance for free assembly.
7. Parts should not be disturbed until sufficient handling strength is achieved.
For Disassembly
1. Apply localized heat to the assembly to approximately 250 °C. Disassemble while hot.
For Cleanup
1. Cured product can be removed by soaking in a Loctite® solvent, e.g. Loctite® 7200 and mechanical removal with a soft scraper. Avoid formation of dust and aerosols.Complete the cleaning process by wiping with a soft cloth dampened with Loctite® Cleaner, e.g. Loctite® 7063 or Loctite® ODC-free cleaner.
Brand:Trigonox®
Chemical family:Organic peroxide
CAS number:75-91-2
Physical form:Liquid
Molecular Weight:90.1
Chemical name:tert-Butyl hydroperoxide, 70% solution in water
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
Brand:Polylite
Appearance:Clear liquid,no visible mechanical impurity
Colour(Hazen):40 Max
Epoxy Equivalent(g/mol):210-230
Hydrolytic Chlorine (%):0.50 Max
Inorg.Cl （mg/kg）:50 Max
Volatile /150℃,40min(%):0.6 Max
Softening Point(℃):14-23
Brand:Polylite
Appearance: Semi-solid
Epoxy equivalent (g/eq): 170-190
*Hue(G): 3.0Max.
Flash point (℃): 250↑
Solution viscosity (25℃): H~K
Density (g/cm³ 20℃): 1.18
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
