Shenzhen Huazhisheng New Material Technology Co., Ltd.
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LOCTITE 243 Threadlocker Sealant for Anti-loosening and Vibration Resistance
Product Specifications
LOCTITE 243 exhibits the following key attributes:
| Attribute | Value | Unit | Test Standard |
|---|---|---|---|
| Technology | Acrylic | - | Proprietary |
| Chemical Type | Dimethacrylate ester | - | - |
| Appearance (Uncured) | Blue with UV fluorescence | Visual | ASTM D1209 |
| Components | Single-component | - | - |
| Viscosity | Medium, thixotropic | - | - |
| Cure Mechanism | Anaerobic (air-excluding) | - | Ambient Conditions |
| Secondary Cure | Activator-accelerated | - | - |
| Application | Threadlocking | - | ISO 10964 |
| Strength | Medium | - | ISO 10123 |
| Substrate Compatibility | Active metals (brass, copper), passive substrates (stainless steel, plated surfaces) | Tested Surfaces | ISO 10365 |
| Temperature Resistance | Up to 150°C (continuous) | - | Internal Testing |
| Oil Tolerance | Resists cutting, lubricant, and corrosion fluids | - | Industry Standards |
| Fluorescence | Positive under UV light | - | Visual Inspection |
Product Overview
LOCTITE 243 is a medium-strength, anaerobic threadlocker designed to secure and seal threaded fasteners in vibrating or shock-prone environments. Its thixotropic formula prevents liquid migration post-application, ensuring controlled adhesion to metal surfaces. The adhesive cures in the absence of air, forming a durable bond that resists loosening from thermal cycling, oil contamination, and mechanical stress. Unlike traditional sealants, it accommodates minor surface contaminants (e.g., lubricants, rust inhibitors) and works on both active metals (e.g., brass, copper) and passive substrates (e.g., stainless steel, plated parts).
Advanced Features
Beyond standard performance, LOCTITE 243 offers:
• UV Fluorescence:Blue color with UV traceability for easy inspection of coverage and coverage gaps.
• Temperature Stability:Withstands continuous operation up to 150°C and brief excursions to 230°C.
• Chemical Resistance:Tolerates exposure to brake fluid, water/glycol mixtures, and biofuels (e.g., B100 biodiesel).
• Adjustable Cure Speed:Activators (e.g., LOCTITE® 7471™) accelerate curing on passive substrates like stainless steel.
Application Scenarios
LOCTITE 243 is widely used in industries requiring reliable threadlock:
• Automotive: Engine mounts, transmission components, and suspension systems.
• Industrial Machinery: Gearboxes, pumps, and electric motors.
• Heavy Equipment: Construction machinery and agricultural tools.
• Aerospace: Accessory fasteners in turbine engines and avionics.
1. Who are we?
We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).
2. What products do you offer?
we supply high-performance adhesives and sealants from global leaders including:
Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.
3. How do you guarantee product quality?
Quality assurance through:
Mandatory pre-production samples approval
Final inspection by QC team before shipment
International certifications: SGS, UL, FDA, RoHS, REACH
4. Why choose us over other suppliers?
Reliable Supply:Authentic products from top manufacturers
Expert Support:Technical guidance for product selection
Global Compliance:Certifications meeting target market standards
Efficient Service:Customized solutions & professional support
5. What services do you provide?
Delivery:EXW/FOB/CIF
Payment:USD/EUR/CNY/HKD via T/T, L/C
Support:Technical consultation & logistics coordination
.