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Loctite 641 Medium Strength Cylindrical Part Retaining Adhesive with Methacrylate Ester Technology and Resistant to Motor Oil

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Loctite 641 Medium Strength Cylindrical Part Retaining Adhesive with Methacrylate Ester Technology and Resistant to Motor Oil
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Features
Specifications
Brand: Loctite
Model: 641
Specifications: 50ML
Category: Holding Adhesive
Highlight:

Medium Strength Cylindrical Part Retaining Adhesive

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Methacrylate Ester Technology Anaerobic Adhesive

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Resistant to Motor Oil Loctite 641
Basic Infomation
Place of Origin: USA
Brand Name: Loctite
Certification: TDS,SDS,Rohs,COA
Model Number: 641
Payment & Shipping Terms
Packaging Details: 50ml
Delivery Time: 3-5
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 100000
Product Description
Loctite 641: Medium Strength Cylindrical Part Retaining Adhesive
Loctite 641 is a one-component, medium viscosity, yellow liquid adhesive based on methacrylate ester technology. This anaerobic adhesive cures in the absence of air between close-fitting metal surfaces and requires no mixing before use.
Product Overview
Specifically designed for bonding cylindrical fitting parts where disassembly for service operations may be required. Effectively prevents loosening and leakage caused by shock and vibration, making it ideal for retaining bearings onto shafts and in housings.
Technical Specifications
Parameter Value / Description
Technology Acrylic
Chemical Type Methacrylate Ester
Appearance (Uncured) Yellow Liquid
Components One Component
Viscosity Medium
Cure Type Anaerobic
Specific Gravity @ 25°C 1.07
Compressive Shear Strength (Steel, 24h @ 22°C) ≥ 6.5 N/mm² (940 psi)
Typical Application Retaining
Strength Level Medium
Special Properties
Loctite 641 exhibits a typical compressive shear strength of ≥ 6.5 N/mm² on steel after 24 hours at 22°C. Cure speed can be accelerated using activators like SF 7471 or SF 7649, especially on inactive surfaces or in larger gap scenarios. The cured adhesive demonstrates excellent resistance to motor oil, brake fluid, and fuels.
Application Scenarios
Widely used for component retention in various industries. Specific applications include securing bushings, sleeves, and gears on shafts; retaining bearings in housings for electric motors, pumps, and gearboxes; and assembling precision instruments and automotive sub-assemblies where reliable, medium-strength, and serviceable bonds are required.
About Our Company
Shenzhen Huazhisheng New Material Technology Co., Ltd. is a professional supplier of industrial adhesives and sealants, serving global markets since 2018.
Our Product Brands
  • Cemedine
  • Dow Corning
  • Shin-Etsu
  • Araldite
  • Momentive
Loctite 641 Medium Strength Cylindrical Part Retaining Adhesive with Methacrylate Ester Technology and Resistant to Motor Oil 0
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