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LOCTITE 661 - 250ml (anaerobic, high strength yellow adhesive for fastening coaxial, metal assemblies)
No.
IDH.195783
LOCTITE 661 - 250ml (anaerobic, high strength yellow adhesive for fastening coaxial, metal assemblies)
Product description:
LOCTITE® 661™ is designed for the bonding of cylindrical fitting parts. The product cures when confined in the absence of air between close fitting metal surfaces or when exposed to UV light of sufficient intensity to prevent loosening and leakage from shock and vibration. LOCTITE® 661™ provides robust curing performance. Typical applications include holding gears and sprockets onto gearbox shafts and rotors on electric motor shafts. Further information about the product: biuro@woronko-kleje.pl
Directions for use:
For Assembly:
1. For best results, clean all surfaces (external and internal) with a LOCTITE® SF 7063 cleaning solvent and allow to dry.
2. To accelerate cure speed or where large gaps are present, use activator LOCTITE® SF 7471 or LOCTITE® SF 7649 and allow to dry.
3. 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.
4. For Press Fitted Assemblies, apply adhesive thoroughly to both bond surfaces and assemble at high press on rates.
5. For Shrink Fitted Assemblies, the adhesive should be coated onto the part to produce a smooth, even film of material. If heating the hub for assembly, coat the pin. If the pin is to be cooled for assembly, coat the hub. If both heating and cooling is to be done, apply material to cooled part. Avoid condensation on cooled parts.
6. Parts should not be disturbed until sufficient handling strength is achieved.
For Disassembly:
1. Remove with standard hand tools.
2. If needed, apply localized heat to the assembly to approximately 250 °C. Disassemble while hot.
3. If this temperature is not possible, heat as much as possible and use mechanical aids.
Clean-up:
1. Cured product can be removed with a combination of soaking in a LOCTITE® SF 7200 solvent and mechanical abrasion such as a wire brush.
Storage:
Store product in the unopened container in a dry location. Storage information may be indicated on the product container labeling.Optimal Storage: 8 °C to 21 °C. Storage below 8 °C or greater than 28 °C can adversely affect product properties. Material removed from containers may be contaminated during use. Do not return product to the original container. Henkel Corporation cannot assume responsibility for product which has been contaminated or stored under conditions other than those previously indicated. If additional information is required, please contact your local Henkel representative.
Parameters:
Specific Gravity (23 °C) : 1,1 Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP) (Spindle 3, speed 20 rpm) : 500 Compressive Shear Strength,, ISO 10123 (Cured for 24hours @ 23°C):
- Steel pins and collars, N/mm²: 15 Tack Free Time, seconds
- 60 mW/cm², measured @ 260 nm 45
- 100 mW/cm², measured @ 365 nm 45
Further information can be found in technical data sheet
LOCTITE® 661™ is designed for the bonding of cylindrical fitting parts. The product cures when confined in the absence of air between close fitting metal surfaces or when exposed to UV light of sufficient intensity to prevent loosening and leakage from shock and vibration. LOCTITE® 661™ provides robust curing performance. Typical applications include holding gears and sprockets onto gearbox shafts and rotors on electric motor shafts. Further information about the product: biuro@woronko-kleje.pl
Directions for use:
For Assembly:
1. For best results, clean all surfaces (external and internal) with a LOCTITE® SF 7063 cleaning solvent and allow to dry.
2. To accelerate cure speed or where large gaps are present, use activator LOCTITE® SF 7471 or LOCTITE® SF 7649 and allow to dry.
3. 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.
4. For Press Fitted Assemblies, apply adhesive thoroughly to both bond surfaces and assemble at high press on rates.
5. For Shrink Fitted Assemblies, the adhesive should be coated onto the part to produce a smooth, even film of material. If heating the hub for assembly, coat the pin. If the pin is to be cooled for assembly, coat the hub. If both heating and cooling is to be done, apply material to cooled part. Avoid condensation on cooled parts.
6. Parts should not be disturbed until sufficient handling strength is achieved.
For Disassembly:
1. Remove with standard hand tools.
2. If needed, apply localized heat to the assembly to approximately 250 °C. Disassemble while hot.
3. If this temperature is not possible, heat as much as possible and use mechanical aids.
Clean-up:
1. Cured product can be removed with a combination of soaking in a LOCTITE® SF 7200 solvent and mechanical abrasion such as a wire brush.
Storage:
Store product in the unopened container in a dry location. Storage information may be indicated on the product container labeling.Optimal Storage: 8 °C to 21 °C. Storage below 8 °C or greater than 28 °C can adversely affect product properties. Material removed from containers may be contaminated during use. Do not return product to the original container. Henkel Corporation cannot assume responsibility for product which has been contaminated or stored under conditions other than those previously indicated. If additional information is required, please contact your local Henkel representative.
Parameters:
- Steel pins and collars, N/mm²: 15
- 60 mW/cm², measured @ 260 nm 45
- 100 mW/cm², measured @ 365 nm 45
Further information can be found in technical data sheet
