Overview
Insulating silicone grease is a non-conductive, silicone-based compound engineered to protect electrical components from moisture, dust, and electrical leakage. Unlike conventional lubricants, its primary function is to insulate rather than reduce friction, making it indispensable in high-voltage and corrosive environments. Developed as an evolution of standard silicone greases, this material combines polydimethylsiloxane (PDMS) with reinforcing fillers like silica to achieve dielectric strengths exceeding 10 kV/mm. Its inert nature ensures compatibility with most plastics, rubbers, and metals.
Physical and Chemical Properties
The grease exhibits exceptional thermal stability, maintaining performance from -40°C to over 200°C without cracking or evaporating. Its viscosity is typically 500–1,000 cP, allowing easy application while resisting drips. The material is chemically inert, resisting oxidation, UV radiation, and most chemicals. Key metrics include volume resistivity (>1×10¹⁴ Ω·cm) and dielectric constant (2.5–3.5 at 1 MHz). Unlike conductive thermal pastes, its thermal conductivity is deliberately low (0.2–0.3 W/m·K) to prevent current leakage.
Main Applications
In automotive systems, it prevents spark plug boot degradation and protects ignition coils. Telecommunications infrastructure relies on it for waterproofing coaxial cable connectors and tower-mounted antennas. Industrial uses include busbar connections, circuit breaker lubrication, and substation equipment maintenance. Recent innovations include NSF-certified food-grade versions for commercial kitchen equipment and formulations with ceramic additives for extreme temperatures in aerospace applications.
Safety and Storage
While generally safe, some industrial grades may contain volatile silicones requiring PPE during bulk handling. Spills should be contained with absorbent materials—never washed away with water due to environmental persistence. Containers must be tightly sealed to prevent absorption of atmospheric moisture. Bulk storage tanks should incorporate nitrogen blanketing to prevent oxidation at elevated temperatures. Shelf life typically exceeds 5 years when stored properly.
B2B Procurement Guide
Industrial buyers should prioritize suppliers with ISO 12944 certification for anti-corrosion materials. Key specifications to request include: dielectric breakdown voltage (ASTM D877), viscosity (ASTM D2161), and ionic impurity content (IPC TM-650). For high-volume purchases (500+ kg), negotiate based on drum quantities rather than retail packaging. Consider geographic sourcing—Asian manufacturers offer cost advantages, while European producers often lead in high-purity formulations for medical electronics.
Related Manufacturers
- 主营：电子电器胶、工业硅酮胶、耐高温密封胶、厌氧胶、工业密封胶、工业高温胶、导热硅脂、导热硅胶、汽车密封胶、平面密封胶、平面厌氧胶、紫外光固化胶、灯具胶、聚氨酯胶水、耐黄变胶水、汽车免垫胶、耐油密封胶、密封胶代工
- 主营：防水sbs、沥青sbs、油毡瓦、氟硅绝缘涂料、eva防水、k11防水、pvc防水、沥青瓦、度低温、pvc卷材、cps反应、卷材sbs、tsc防水、hdpe防水、fyt1防水、3sbs防水、卷材pe膜、pe高分子、聚氯乙烯、聚酯复合、防水涂料、木屋瓦片、防水屋面、面sbs防水、轻钢别墅、自沾卷材
- 主营：防水sbs、玻纤瓦、tpz防水、氟硅绝缘涂料、瓦油毡、bac自粘、卷材sam、eva防水、彩钢瓦、卷材tpo、k11防水、高分子、pvc防水、沥青瓦、eva自粘、pet自粘、hdpe防水、fyt1防水、tpob防水、聚氯乙烯、卷材包工、水泥路面、彩油毡瓦、水卷卷材、聚酯复合、反应粘结
- 主营：堵水圈、发泡条、橡胶框、绝缘垫、氟橡胶、密封件、硅胶管、矽胶管、硅橡胶、橡胶垫、装饰条、骨架条、带胶eva、聚氨酯、封水条、橡胶管、阻水条、tpe胶条、透明条、密封圈、pvc树脂、海绵垫、硅橡管、机柜门、压边条
- 主营：防水sbs、玻纤瓦、沥青sbs、沥青胶、prm防水、油毡瓦、eva防水、k11防水、pvc防水、沥青瓦、屋面板、eva高铁、涂料k11、卷材sbs、聚乙烯、hdpe防水、fyt1防水、卷材1卷、pvcs防水、hut1防水、pe高分子、pe膜防水、聚氯乙烯、县sbs防水、卷材先做
- 主营：水泥浆、网带pet、聚合物、涂料sbs、建筑sbs、贴方向、sbs卷材、层施工、产设备、防水剂、土工布、油毡瓦、焊接机、彩钢瓦、雨水斗、k11防水、琉璃瓦、hst卷材、阳光房、树脂瓦、雨水管、120防水、聚氨酯、镀锌板、贴装置
- 主营：油毡瓦、沥青瓦、玻纤瓦、氟硅绝缘涂料、sbs防水卷材、自粘防水卷材、高分子防水卷材、pvc防水卷材、三元乙丙橡胶防水卷材、高聚物改性沥青防水卷材、聚氯乙烯防水卷材、非沥青基防水卷材、预铺防水卷材、湿铺防水卷材、聚乙烯丙纶防水卷材、隧道专用防水卷材、耐根穿刺防水卷材、自粘橡胶防水卷材、防水涂料
- 主营：YXLON依科视朗X-RAY、AXI在线X-RAY、YXLON依科视朗工业CT、15000绝缘硅酯、3D AOI、ERSA选择焊、X-RAY点料机、炉温测试仪、ERSA回流焊、PCBA分板机、料盘分盘机、Cougar EVO、CheetahEVO、工业CT FF35、工业CT FF85、工业CT FF20
- 主营：导电胶、导电双面胶、导电布、绝缘垫圈垫片、导电无纺布、导电泡棉、铜箔铝箔胶带、XYZ全方位导电海棉、导热双面胶、导热硅胶片、石墨片、石墨烯、吸波材料、光学胶、OCA光学胶模切加工、高温胶带、PⅠ高温胶带、阻燃泡棉、硅胶泡棉、PU泡棉、罗杰斯井上泡棉、黑白遮光胶带、大尺寸模切加工、电子胶带
- 主营：玻纤绝缘套管、丙烯酸酯套管、玻璃纤维套管
- 主营：sbs卷材、卷材app、油毡瓦、氟硅绝缘涂料、卷材eva、号沥青、贴缝带、外墙面、pvc自黏、聚氨酯、pvc防水、10#沥青、防水sbs、彩钢顶、玻纤瓦、抗裂贴、沥青瓦、沙皮瓦、eva防水、tss防水、hdpe防水、卷材p类、卷材l类、isbs防水、卷材sbpe、pe膜防水
- 主营：ppc防水、保护层、玻纤瓦、有机硅阻燃绝缘涂料、沙皮瓦、水泥浆、保护膜、网带pet、隔离层、外墙砖、聚合物、封檐板、防水板、乙烯pvc、乳胶漆、隔热漆、雨水管、雨水槽、地坪漆、落水管、沥青sbs、排水管、贺德克、落水槽、油毡瓦、钢结构