Overview
High-temperature threadlocker is an engineered adhesive designed to prevent threaded fasteners from loosening under extreme heat and vibration. Unlike standard threadlockers that degrade above 150°C, these formulations maintain integrity up to 300°C through advanced acrylate or epoxy chemistries. Developed for demanding industrial applications, they cure anaerobically (in absence of air) when confined between metal threads. Major manufacturers offer different strength grades - from removable (medium strength) to permanent (high strength) - with color-coding for easy identification.
Physical and Chemical Properties
These threadlockers exhibit low viscosity (200-500 cP) before curing for precise application, transforming into rigid thermoset polymers after curing. The cured material typically has a tensile strength of 15-25 MPa and glass transition temperature (Tg) exceeding the rated service temperature. Key additives include thermal stabilizers like ceramic microspheres or aromatic amines, which prevent thermal degradation. Most formulations are resistant to automotive fluids, oils, and mild chemicals, though prolonged exposure to strong solvents may weaken the bond.
Main Applications
Primary use cases center on high-heat mechanical systems: turbocharger housings, brake caliper bolts, exhaust manifold studs, and cylinder head fasteners in automotive/ aerospace sectors. Industrial applications include furnace equipment, power generation turbines, and heavy machinery subject to thermal cycling. In the oil/gas industry, they secure critical wellhead components and pipeline flanges. The medium-strength variants are preferred for serviceable parts like sensor mounts, while high-strength versions are used for permanent assemblies such as gearbox housings.
Safety and Storage
Uncured product is classified as flammable liquid (Flash point ~50°C). Storage requires cool, dry conditions away from ignition sources. Opened containers should be purged with nitrogen to prevent premature curing. Cured material is non-hazardous, but machining or grinding treated fasteners generates inhalable particles - use local exhaust ventilation. For cleanup before curing, acetone or specialized cleaners are effective. Always consult SDS for specific first aid measures regarding eye/skin contact.
B2B Procurement Guide
Industrial buyers should specify: 1) Maximum service temperature (continuous & peak) 2) Required breakaway torque (Nm) 3) Cure speed (full strength in hours) 4) Compatibility with substrate metals/coatings. Bulk purchases (cartridges or barrels) offer 20-40% cost savings versus retail packaging. Leading manufacturers include Henkel Loctite, 3M, Permatex, and Vibratite. For critical applications, request certified test reports for thermal aging performance. Consider applicator guns for production-line use to ensure consistent dosage and reduce waste.
Related Manufacturers
- 主营：weller焊台、乐泰胶水、乐泰4011、乐泰丙烯酸酯螺纹锁固、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：锁固剂、243螺纹锁固胶、243胶水
- 主营：乐泰胶水、LOCTITE、乐泰密封胶、乐泰瞬干胶、乐泰
- 主营：粘接胶、热熔胶、速干胶、处理剂、引发剂、催化剂、螺纹锁、粘接剂、清洗剂、防卡剂、去除剂、聚合物、瞬间胶、粘结胶、固持胶、主电机、填充胶、结构胶、润滑胶、环氧胶、液体胶、汽车胶、灌封胶、减震垫、修补胶
- 主营：密封胶、灌封胶、快干胶、胶粘剂、粘合剂、清洗剂、螺纹锁固胶、结构胶、UV胶、润滑油、UV固化设备
- 主营：瞬干胶、平面胶、结构胶、养护剂、润滑剂、抗咬合剂、螺纹胶棒、电器清洗剂、厌氧锁固剂、固体胶棒、魔力胶棒、螺牙防松胶、螺牙紧固胶、平面密封胶、环氧树脂胶
- 主营：乐泰胶水、乐泰603胶水、热熔胶、处理剂、胶黏剂、催化剂、loctite螺纹胶、loctite抗咬剂、清洗剂、loctite环氧树、乐泰轴承胶、pvc快干胶、机器人胶水、乐泰598密封胶、德国汉高设备、瞬间胶、乐泰UV医疗胶、乐泰435瞬干胶、乐泰导电胶、结构胶、loctite胶水、无影胶、乐泰管道密封胶、乐泰680胶水
- 主营：胶粘剂、乐泰胶、胶水
- 主营：热熔胶、结构胶、封铸造、铝涂剂、螺纹锁固、中纤维、快干胶、聚氨酯、板复合、集装箱、洗衣机、胶粘接、过滤器、乐泰c5-a、齿轮螺丝、材料粘接、汉高乐泰、元件胶水、专用双组、刚性泡沫、loctiteaa326、风能船舶、乐泰480瞬、灌封涂层、装箱建筑
- 主营：乐泰胶水、DOWSIL胶水、密封胶、螺纹锁固剂、厌氧胶、快干胶、LOXEAL胶、3M胶水、三键胶水
- 主营：防腐漆、锡废料、防潮油、三防剂、清洁剂、清洗剂、剥离剂、去除剂、助焊剂、除油剂、焊锡丝、锡焊条、保护油、焊锡膏、铝合金、导热膏、三防漆、焊锡条、散热膏、无铅锡线、电动玩具、电子元件、三防涂料、绝缘硅脂、镀锡支架
- 主营：胶黏剂
- 主营：抛光粉、丙三醇、氧化铝、澄清剂、催化剂、手感剂、成核剂、脱模剂、清洗剂、粘合剂、光扩散剂、阻燃剂、石墨粉、半导体、紫胶片、硅油、硅胶、硅藻土、硅乳液、有机硅微球、氟化液
- 主营：固化剂
- 主营：快干胶、环氧胶、结构胶、胶粘剂、结构粘合剂、环氧粘合剂、瞬干胶活化剂、耐高温铸工胶水、金属塑料、手动胶枪、环氧树脂、陶瓷玻璃、工业胶水、树脂胶水、建筑混凝土、改性硅烷密封胶、清澈透明瞬间胶