Overview
Insulating laminated board is a composite material engineered for electrical insulation in high-voltage and high-temperature environments. It consists of layers of cellulose paper, cotton fabric, or glass cloth bonded with thermosetting resins like phenolic or epoxy. The lamination process under heat and pressure ensures uniform density and superior dielectric properties. Widely used in power distribution and industrial equipment, this material is valued for its ability to withstand electrical stress, mechanical wear, and environmental factors. Manufacturers offer customized grades to meet specific voltage ratings, thermal thresholds, and mechanical load requirements.
Physical and Chemical Properties
The board’s dielectric strength typically ranges from 10 to 50 kV/mm, depending on the resin system and reinforcement material. Its thermal endurance allows continuous operation at 105–155°C, with some grades rated for higher temperatures. The material exhibits low water absorption (≤1%) and high comparative tracking index (CTI) to prevent surface leakage currents. Chemically, it resists oils, acids, and alkalis, making it suitable for harsh industrial settings. However, prolonged exposure to UV radiation or extreme humidity may degrade performance. Flame-retardant variants meet UL 94 V-0 standards for self-extinguishing properties.
Main Applications
In the electrical industry, insulating laminated boards serve as barriers in transformers, busbars, and circuit breakers to prevent short circuits. They are also machined into insulators, terminal blocks, and arc shields. The automotive sector uses them in battery casings and ignition systems. Industrial applications include jigs, fixtures, and wear plates where electrical insulation and dimensional stability are critical. Some grades are tailored for printed circuit board (PCB) substrates or high-frequency applications, offering low dielectric loss.
Safety and Storage
While non-hazardous under normal conditions, dust generated during machining requires respiratory protection. Overheating during fabrication may release formaldehyde or other resin-derived fumes, necessitating local exhaust ventilation. Storage recommendations include keeping boards flat to prevent warping and sealing edges in humid climates to minimize moisture absorption. Shelf life is typically 12–24 months when stored properly. Discard materials showing delamination or discoloration, as these indicate compromised insulation properties.
B2B Procurement Guide
Buyers should specify thickness (commonly 0.5–50 mm), dielectric strength, and thermal class (e.g., Class B, F, or H per IEC 60085). For high-voltage applications, request proof of partial discharge resistance testing. Lead times vary; stock items ship within days, while custom sizes/colors may require weeks. Consider total cost of ownership: premium grades with longer service life often outweigh cheaper alternatives. Reliable suppliers provide material certifications (RoHS, REACH) and batch test reports. For large orders, negotiate volume discounts or consignment stock agreements.
Related Manufacturers
- 主营：环氧树脂板、电木板、胶木板、绝缘橡胶板、橡胶绝缘板、绝缘梯、绝缘凳、杆顶绝缘隔板、防鸟挡板、防鸟封堵箱、防鸟刺、黑胶皮、玻璃钢防鸟罩、占位器、电缆支架、接地线、拉闸杆、防汛挡水板、铝合金挡鼠板、阻燃橡胶板、防静电胶垫、电力安全工具柜、标志牌、标志桩
- 主营：工具柜、接地线、耐磨橡胶板、绝缘胶垫、绝缘橡胶垫、绝缘梯、绝缘凳、杆顶绝缘隔板、绝缘操作杆、黄色环氧板、铝合金挡水板、防鸟挡板、防鸟封堵箱、防鸟刺、驱鸟器、环氧树脂板、防汛挡板、电木板、电缆支架、frp垫块、标志桩、防鸟罩、围栏
- 主营：电木板、胶木板、胶木棒、3240环氧板、FR4玻纤板
- 主营：FR-4玻纤板、G10玻纤板、G11玻纤板、GPO-3绝缘板、SMC绝缘板、光伏绝缘板、绝缘板精密加工、防静电玻纤板、防静电电木板、环氧树脂板、电木板、电池隔板、测试板、POM、防静电POM、PEEK板棒、塑胶板精密加工
- 主营：绝缘板
- 主营：隔热防晒、桁架楼承板、钢结构围挡、隔离围挡护栏、屋面承重板材
- 主营：彩钢雨水管、彩钢板落水管、镀铝锌板彩钢瓦、彩钢瓦、不锈钢瓦、压型彩钢板、镀锌楼承板、楼承板、压型钢板、钢结构楼承板、镀锌压型板、彩钢瓦楞板、岩棉彩钢瓦、冲孔彩钢板、彩钢落水管、彩钢压型板、开口楼承板、彩钢岩棉夹芯板
- 主营：pom、杜邦pom、宝理pom、聚乙烯层压板、旭化成pom、巴斯夫、pom100p、聚甲醛共聚物、赛钢聚甲醛原料、pom500p、pom900p、奇美abs、浙石化、中石化、pvdf、PCTG、PARA、沙伯基础、pmma、pps、日本东丽pa66、云天化、科思创TPU、陶氏POE、埃克森美孚POE、美国苏威
- 主营：云母板、环氧板、复合材料、绝缘材料、绝缘板材、绝缘管材、绝缘纸板、绝缘纸、变压器散热器片、变压器油箱、酚醛布板、pp板、亚克力板、FR4玻纤板、3240环氧板
- 主营：层压板、改性塑料
- 主营：电路板打样、工控板、电路板、PCB、PCBA、电路板OEM、电路板代工、电路板加工、线路板加工、电路板定制、pcba加工、pcb设计制作、电路板加工厂、hdi电路板、电路板研发
- 主营：电解纸、高温漆、点胶纸、绝缘漆、绝缘纸、绝缘膜、绝缘带、诺美纸、电缆纸、黄壳纸、弹性纸、环氧漆、三防漆、菱格纸、覆盖漆、青稞纸、聚酯漆、灰磁漆、电工纸、环氧胶、芳纶纸、浸渍纸、灌封胶、稀释剂、防锈漆
- 主营：聚氨酯轮、聚氨酯制品、酚醛树脂板、酚醛层压布板、浇筑注塑聚氨酯、树脂胶木刮水板
- 主营：Pom美国杜邦、日本宝理pom、旭化成pom、层压板、Pom100p、Pom500p、Pom900p、M90-44、F20-03、ABS747、abs757、LCP、PA6T、PA9T、POE、PBT、PVDF、PETG、COC、HIPS、TPEE、TPU、TPV、日本旭化成pom、美国杜邦pom
- 主营：塑胶原料、工程塑料、铁氟龙、层压板、PTFE、HDPE、PVDF、PC、PP、pPA6、PA66、hhm5502lw、c2950-111、聚乙烯、ppo塑胶、pcg-3430r、t-45注塑、pc243r-111、pese2010g4、包装薄膜、电线电缆、照明灯具、蜡塑料pvc、汽车部件、耐低温热、塑料玩具
- 主营：彩钢板、彩钢瓦、楼承板、C型钢、Z型钢、檩条、楼承瓦、几字型钢、彩钢房、钢结构、岩棉彩钢板、彩钢岩棉板、保温彩钢板、彩钢保温板、夹芯彩钢板、彩钢夹芯板、夹心彩钢板、彩钢夹心板、阻燃彩钢板、采光板、采光瓦、防腐板、钢结构厂房、彩板房、免浇筑楼承板
- 主营：彩钢瓦、镀锌卷、采光板、pc阳光板、阳光板瓦、聚酯彩钢卷、氟碳彩钢卷、光伏立柱、高耐候彩钢卷、轨道建筑钢结构、楼承板、镀锌CZ型钢、镀锌带钢、镀锌打包带、免浇筑楼承板、镀铝锌卷、锌铝镁卷、锌铝镁带钢、镀锌几字型钢、纳米彩钢板、马口铁、镀锡板、铝镁锰板、打包带、不锈钢排水沟