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Loctite 638 , 640 , 641 , 648 , 680

$ 29.26$ 108.24

Loctite 638 : Retaining Compound – high strength. General purpose. Fast curing.
Loctite 640 : High strength, methacrylate ester-based retaining compound that is slow curing; ideal for large diameter components and active metals such as brass
Loctite 641 : The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration
Loctite 648 : Retaining compound which is typically used for holding gears and sprockets onto gearbox shafts and rotors on electric motor shafts.
Loctite 680 : High strength, methacrylate ester acrylic liquid designed for the bonding of cylindrical fitting parts, particularly where low viscosity is required.

SKU N/A Category

Loctite is an brand of adhesives, sealants, surface treatments, and other industrial chemicals that include acrylic, anaerobic, cyanoacrylate, epoxy, hot melt, silicone, urethane, and UV/light curing technologies.

Features and Benefits

Loctite 638
LOCTITE® 638 is designed for the bonding of cylindrical fitting parts, particularly with narrow bond gaps approaching 0.25 mm. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. It not only works on active metals but also on passive substrates, exhibiting robust cure performance. The product offers high-temperature performance and good oil tolerance, and tolerates minor surface contaminants.
  • Tolerates minor contaminants, including industrial oils
  • High strength on all metals, including passive substrates (e.g. stainless steel)
  • High temperature resistance
  • Ideal for shafts, gears, pulleys and similar cylindrical parts
  • DVGW Approval (EN 751-1): NG-5146AR0619
  • P1 NSF Reg. No.: 123010
  • WRAS Approval (BS 6920): 0511518

Volume: 50ml, 250ml

Loctite 640
LOCTITE® 640 is a green, anaerobic, low viscosity, methacrylate ester-based retaining compound ideal for parts requiring a longer positioning time. Fixturing time on steel is 2 h. Also used for active metals such as brass. This is a high strength product with good temperature resistance. Max. diametrical clearance is 0.1 mm and service temperature is -55 to +175ºC. Fluorescence allows product presence to be monitored.
  • 1-part product, requires no mixing
  • Slow curing
  • Ideal for large diameter components
  • High strength
  • Also for active metals such as brass
  • Good temperature resistance

Volume: 50ml

Loctite 641
LOCTITE® 641 is designed for the bonding of cylindrical fitting parts, particularly where disassembly is required for servicing operations. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. Ideal for parts that need subsequent dismantling, i.e. retention of bearings on shafts and in housings.
  • Ideal for parts that need subsequent dismantling, i.e. retention of bearings on shafts and in housings

Volume: 50ml, 250ml

Loctite 648
LOCTITE® 648 is a green, fluorescent, low viscosity, high strength, urethane methacrylate acrylic, anaerobic retaining compound designed for bonding cylindrical fitting parts. It prevents loosening and leakage from shock and vibration. Typical applications include holding gears and sprockets onto gearbox shafts and rotors on electric motor shafts. It provides robust curing performance.
  • Fluorescent
  • Low viscosity
  • High strength
  • Designed for bonding cylindrical fitting parts
  • Offers high temperature performance and oil tolerance
  • Works on active metals (e.g. mild steel) as well as passive substrates such as stainless steel and plated surfaces
  • Tolerates minor surface contaminations from various oils such as cutting, lubrication, anti-corrosion and protection fluids

Volume: 50ml, 250ml

Loctite 680
LOCTITE® 680 is a green, high strength, methacrylate ester acrylic liquid designed for the bonding of cylindrical fitting parts, particularly where low viscosity is required. The product prevents loosening and leakage from shock and vibration. It provides robust curing performance. It works on active metals (e.g. mild steel) and on passive substrates (e.g. stainless steel and plated surfaces).
  • Low viscosity
  • Provides robust curing performance
  • Offers high temperature performance and oil tolerance
  • Cures when confined in the absence of air between close fitting metal surfaces
  • Certified to ANSI/NSF Standard 61 for use in commercial and residential potable water systems not exceeding +82 °C
  • Tolerates minor surface contaminations from various oils

Volume: 50ml, 250ml

Additional information

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