LOCTITE 242 is a medium-strength anaerobic threadlocker designed for the reliable locking and sealing of threaded fasteners. This formulation prevents loosening and leakage caused by shock and vibration, enhancing assembly integrity. It ensures components remain secure while allowing for normal disassembly using standard hand tools, optimizing maintenance procedures.
General Information of LOCTITE 242
This industrial-grade adhesive utilizes advanced acrylic technology with a dimethacrylate ester chemical base. It presents as a distinctive blue liquid, exhibiting positive fluorescence under UV light for easy inspection and quality control. Furthermore, LOCTITE 242 is a convenient one-component system, eliminating the need for pre-mixing and simplifying application processes across various manufacturing environments. Its medium, thixotropic viscosity effectively reduces liquid migration after application to the substrate, ensuring precise placement and minimizing waste. Consequently, the product cures anaerobically when confined in the absence of air between close-fitting metal surfaces, providing robust and consistent performance. This curing mechanism is ideal for preventing fastener back-out in dynamic conditions.
Key Features & Technical Benefits
- Medium Strength Threadlocking: This characteristic allows for routine disassembly with standard hand tools, significantly facilitating maintenance and servicing operations without damaging components.
- Anaerobic Curing Mechanism: The product cures reliably in the absence of air between metal surfaces, forming a secure bond that resists vibrational loosening. This ensures long-term joint integrity.
- Thixotropic Formulation: Its non-migrating nature keeps the adhesive precisely where applied, preventing run-off and ensuring consistent coverage on threaded parts.
- Versatile Substrate Compatibility: It performs effectively on less active substrates, including plated surfaces, expanding application possibilities across diverse industrial materials.
- Shock and Vibration Resistance: LOCTITE 242 actively prevents fasteners from loosening under dynamic loads, maintaining assembly performance and safety.
Typical Industrial Applications
This formulation is engineered for the following applications:
- Locking and sealing threaded fasteners that require normal disassembly for servicing or repair.
- Preventing the loosening and leakage of mechanical assemblies subjected to continuous shock and vibration.
- Securing components on less active metal substrates, such as cadmium or zinc-plated parts, where traditional threadlockers may struggle.
- General-purpose threadlocking in automotive, industrial machinery, and electronic assembly.
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
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- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Property | Value |
| Technology | Acrylic |
| Chemical Type | Dimethacrylate ester |
| Appearance (uncured) | Blue liquid |
| Fluorescence | Positive under UV light |
| Components | One component - requires no mixing |
| Viscosity | Medium, thixotropic |
| Cure | Anaerobic |
| Strength | Medium |
| Specific Gravity @ 25 °C | 1.1 |
| Viscosity, Brookfield (Spindle 3, 20 rpm, 25 °C) | 800 to 1,600 mPa·s (cP) |
| Breakaway Torque (24h @ 22°C, 3/8 x 16 steel) | 7.9 to 17 N·m (70 to 150 lb.in) |
| Prevail Torque (24h @ 22°C, 3/8 x 16 steel) | 2.8 to 6.8 N·m (25 to 60 lb.in) |
