Overview
Threadlocker is a specialized adhesive designed to secure threaded fasteners such as bolts, screws, and nuts. It cures anaerobically (in the absence of air) when confined between metal surfaces, forming a durable polymer that prevents loosening due to vibration or dynamic loads. Available in varying strengths, it is classified as low (removable), medium (semi-permanent), or high (permanent) to suit different industrial needs. Common formulations include cyanoacrylate-based (instant) and methacrylate-based (anaerobic) adhesives. The choice depends on application requirements, such as disassembly frequency and environmental conditions. Threadlockers are widely used in industries where fastener reliability is critical, such as automotive assembly and heavy machinery.
Physical and Chemical Properties
Threadlockers are typically low-viscosity liquids that cure into rigid or flexible plastics, depending on the formulation. Anaerobic variants remain liquid until isolated from oxygen, while cyanoacrylate types cure rapidly upon contact with moisture. Key properties include high shear strength, resistance to oils and solvents, and thermal stability up to 150–250°C (depending on grade). Density ranges from 1.0 to 1.2 g/cm³, and cured adhesives are insoluble in water and most organic solvents. Some formulations include additives like fluorescent tracers for quality control or corrosion inhibitors for metal protection. Shelf life is typically 12–24 months when stored properly.
Main Applications
Threadlockers are indispensable in industries prone to vibration or thermal cycling. Automotive manufacturers use them for engine components, transmissions, and brake systems. Aerospace applications include securing critical fasteners in aircraft engines and structural assemblies. Electronics manufacturers rely on low-strength variants for small screws in consumer devices. Industrial machinery benefits from threadlockers to maintain bolt tension in high-load environments. They are also used in marine equipment to prevent saltwater corrosion. Specialty grades include high-temperature formulations for exhaust systems and non-drip gels for vertical applications.
Safety and Storage
Threadlockers contain volatile compounds and should be handled in well-ventilated areas. Skin contact may cause irritation; nitrile gloves are recommended. Avoid inhalation of vapors, and store containers upright to prevent leakage. Most products are flammable and should be kept away from ignition sources. Uncured adhesive can be removed with acetone or specialized cleaners. Cured adhesive requires mechanical methods (e.g., heating or ultrasonic tools) for disassembly. Dispose of unused product according to local regulations, as some formulations contain hazardous monomers.
B2B Procurement Guide
For bulk procurement, evaluate suppliers based on consistency, certifications (e.g., ISO 9001), and technical support. Specify strength grade (e.g., Loctite 242 for removable, 271 for permanent), curing time, and temperature resistance. Consider packaging options (bottles, pens, or cartridges) for ease of application. Request samples to test compatibility with substrates and operating conditions. Compare prices per unit volume, but prioritize performance—cheaper alternatives may compromise reliability. Establish long-term contracts with reputable suppliers to ensure steady supply and volume discounts.
Related Manufacturers
- 主营：weller焊台、乐泰胶水、乐泰4011、乐泰瞬干胶、乐泰环氧胶、乐泰4981、乐泰31CL、乐泰 21HP、乐泰454、泰罗松9360、WELLERWT1014、威勒WT1010H、WT1010、易力高DCA、易力高三防漆、乐泰243、乐泰222、乐泰577、乐泰660、乐泰277、乐泰680、吸烟仪、乐泰263、乐泰270、威勒焊台
- 主营：243螺纹锁固胶、锁固剂、243胶水
- 主营：处理剂、粘接胶、热熔胶、速干胶、瞬间胶、螺纹锁、引发剂、催化剂、聚合物、粘结胶、固持胶、主电机、填充胶、结构胶、润滑胶、粘接剂、清洗剂、防卡剂、环氧胶、液体胶、汽车胶、灌封胶、去除剂、减震垫、修补胶
- 主营：密封胶、工业胶粘剂、圆柱固持胶、金属快干胶、免垫片胶水红胶
- 主营：德莎tesa胶带、汉高乐泰LOCTITE胶水、德莎胶带、3m胶水胶带、汉高乐泰胶水
- 主营：环氧胶、vci防锈、半透明、快干胶、橡胶速干胶、透明速干胶、胶粘剂、北美防锈、喷雾胶水、防锈浴帽、聚氨酯胶、塑料结构、超强防锈膜、环氧树脂胶、防锈缠绕膜、环氧结构胶、重新定位喷胶、塑料防锈基布、阻燃结构胶水、环氧树脂透明、3M胶带、3M胶水、VHB双面胶、耐高温胶带、汽车胶带
- 主营：接着剂、活化剂、厌氧胶、快干胶、瞬间胶、瞬干胶、螺纹锁固剂、管螺纹密封剂、润滑剂、清洗剂、促进剂、催化剂、润滑脂、面密封剂、抗咬合剂、螺丝胶水、表面处理剂、垫片清除剂、去垢清洁剂、平面结构胶、平面密封胶、油污清洁剂、螺栓防卡剂、刚性金属法兰、金属塑料橡胶
- 主营：乐泰55管道魔绳、结构胶、紫外线固化胶、液体螺纹锁固剂、液体管螺纹密封剂、瞬干胶、厌氧胶、硅橡胶、圆柱形部件固持胶
- 主营：乐泰425瞬干胶、乐泰胶水、可赛新胶水、回天胶水
- 主营：防锈剂、北美防锈、环氧胶、螺纹胶、瞬干胶、快干胶、橡胶速干胶、透明速干胶、VCI防锈、半透明、胶粘剂、喷雾胶水、防锈浴帽、聚氨酯胶、塑料结构、超强防锈膜、环氧树脂胶、防锈缠绕膜、环氧结构胶、重新定位喷胶、塑料防锈基布、阻燃结构胶水、环氧树脂透明、3M胶带、3M胶水
- 主营：快干胶、胶黏剂
- 主营：处理剂、乐泰胶水、胶黏剂、pvc快干胶、loctite螺纹胶、瞬间胶、乐泰435瞬干胶、乐泰603胶水、热熔胶、催化剂、loctite环氧树、乐泰轴承胶、机器人胶水、乐泰598密封胶、德国汉高设备、乐泰UV医疗胶、乐泰导电胶、loctite抗咬剂、结构胶、loctite胶水、清洗剂、无影胶、乐泰管道密封胶、乐泰680胶水
- 主营：424胶水、abs塑料、金属塑料、瞬干胶、螺纹锁固胶剂、塑料橡胶、快速固化胶粘剂
- 主营：汉高胶水、富乐胶水、波士胶水、德邦瞬干胶、汉高热熔胶、汉高压敏胶、富乐热熔胶、富乐压敏胶、富乐水性胶、乐泰胶水、西卡密封胶、波士无溶剂胶、耐高温热熔胶、低压注塑热熔胶、可降解胶水、富乐塑料无底涂热熔胶、PP热熔胶、四季通用热熔胶、户外用热熔压敏胶