LOCTITE 243 is a medium-strength anaerobic threadlocker designed for securing and sealing threaded fasteners. It prevents loosening and leakage caused by shock and vibration. This formulation allows for normal disassembly using standard hand tools.
General Information of LOCTITE 243
This advanced industrial adhesive utilizes an acrylic, dimethacrylate ester chemical base. It presents as a distinctive blue liquid with medium, thixotropic viscosity. The product cures anaerobically, meaning it hardens in the absence of air when confined between close-fitting metal surfaces. Furthermore, it is a one-component system, requiring no mixing before application.
LOCTITE 243 provides robust curing performance across various metal substrates. It works effectively on active metals, such as brass and copper. Moreover, it cures reliably on passive substrates like stainless steel and plated surfaces. This formulation also offers high-temperature performance and significant oil tolerance. It tolerates minor surface contaminations from common industrial fluids, including cutting, lubrication, anti-corrosion, and protection oils.
Key Features & Technical Benefits
- Medium Strength Formulation: This allows for normal disassembly of threaded fasteners. Consequently, maintenance and repair operations remain straightforward.
- Enhanced Oil Tolerance: The product performs reliably even on surfaces with minor oil contamination. This reduces the need for extensive pre-cleaning.
- Thixotropic Nature: Its non-migrating consistency ensures precise application. This prevents the liquid product from running after placement on the substrate.
- Versatile Substrate Compatibility: It cures effectively on both active and passive metals. This broadens its application scope across diverse industrial materials.
- Prevents Loosening and Leakage: The cured adhesive secures fasteners against shock and vibration. This significantly enhances assembly reliability and integrity.
Typical Industrial Applications
This formulation is engineered for the following applications:
- Locking and sealing threaded fasteners.
- Preventing loosening and leakage from shock and vibration.
- Securing components that require normal disassembly with hand tools.
- Use on active metals like brass and copper.
- Application on passive substrates such as stainless steel and plated surfaces.
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
- Customizing material formulas for special applications
- 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 |
| Components | One component - requires no mixing |
| Viscosity | Medium, thixotropic |
| Cure | Anaerobic |
| Strength | Medium |
| Specific Gravity @ 25 °C | 1.08 |
| Viscosity, Brookfield - RVT, 25 °C, Spindle 3, speed 20 rpm | 1,300 to 3,000 mPa·s (cP) |
| Breakaway Torque, ISO 10964, Unseated (M10 black oxide bolts and mild steel nuts) | 26 N·m (230 lb.in.) |
| Prevail Torque @ 180°, ISO 10964, Unseated (M10 black oxide bolts and mild steel nuts) | 5 N·m (40 lb.in.) |
| Compressive Shear Strength, ISO 10123 (Steel pins and collars) | ≥7.6 N/mm² (≥1,100 psi) |
