Overview
Liquid external release agents are temporary barrier coatings applied to molds or dies in manufacturing processes. These formulations create a thin, non-stick layer that prevents cured materials like rubber, plastics, or composites from bonding to tool surfaces. Primarily used in injection molding, rotational molding, and compression molding, these agents significantly reduce demolding force and minimize surface defects. Their liquid form allows for spray, brush, or wipe application, offering versatility across different production scales.
Physical and Chemical Properties
Most commercial liquid release agents exhibit low viscosity (20-500 cP) for easy application, with flash points ranging from 38°C to 93°C depending on the solvent base. Silicone-based formulations dominate high-temperature applications (up to 260°C), while water-based versions are gaining popularity for environmental compliance. Key performance metrics include transfer resistance (minimal migration to molded parts) and multiple release capability. Advanced formulations incorporate fluoropolymers or nanocomposites for enhanced performance in challenging applications like aerospace composites.
Main Applications
In tire manufacturing, these agents enable clean separation of vulcanized rubber from steel molds. The plastics industry relies on them for complex injection-molded parts, reducing ejection stress on delicate geometries. Composite manufacturers use specialized versions for carbon fiber and fiberglass layups, where residue control is critical. Emerging applications include 3D printing molds and concrete formwork release, demonstrating the product's cross-industry versatility.
Safety and Storage
Flammability is the primary safety concern, requiring Class I, Division 1 storage for solvent-based products. Proper ventilation is essential during application to prevent vapor accumulation. Shelf life typically ranges 12-24 months when stored in original sealed containers between 5°C-30°C. Freezing can destabilize emulsion formulations. Disposal must comply with local regulations for hydrocarbon or silicone-containing wastes.
B2B Procurement Guide
Industrial buyers should evaluate release agents based on: 1) Compatibility with both mold material (steel, aluminum, composite) and processed material 2) Required application frequency per cycle 3) Post-processing requirements (cleanability, paint adhesion). Bulk purchases (55-gallon drums or totes) typically offer 15-30% cost savings versus retail packaging. Technical datasheets should specify VOC content, recommended application thickness, and maximum service temperature.
Related Manufacturers
- 主营：[]
- 主营：脱模剂
- 主营：食品级甘油、十六醇、十八醇、十六十八醇、月桂酸、棕榈酸、肉豆蔻酸、硬脂酸、丙二醇、二丙二醇、三丙二醇
- 主营：四氢噻吩、三甲基戊烷、乙硫醇、二甲基亚砜、氧化三甲胺、环丁砜、正己烯、单氰胺、氟硅酸、氯乙酸、氯乙酸钠、叔丁硫醇、对叔丁基邻苯二酚、氟硼酸、溶剂油、乙硫氨酯、苯扎溴铵、三聚氯氰、亚磷酸三苯酯、对氟苯胺、正己烷、邻苯基苯酚、苯酚、叔十二硫醇、二甲基二硫醚
- 主营：润滑剂、石墨粉、超细石墨粉、阻燃石墨、超细石墨、高纯石墨、煅烧高岭土、耐火泥造纸、润滑石墨铅粉、合成氟金云母粉、高岭土、种子包衣粉、麦饭石粉、白色电气石粉、远红外粉、导电石墨粉、耐高温石墨粉、云母片、天然云母片、耐高温云母片、透明云母片、云母板、沸石、沸石粉、麦饭石颗粒
- 主营：切削液集中供液设备、废液再生设备、低温蒸发设备、脱模剂废液处理设备、乳化液净化、液槽清渣换液小车、切削液浓度配比、切削液净化设备、液压油过滤机、乳化油真空滤油机
- 主营：微量润滑油、微量润滑装置、微量润滑装置配件
- 主营：硬脂酸、氧化锌、钛白粉、石蜡、稳定剂、橡胶促进剂M、橡胶促进剂DM、橡胶促进剂TMTD、橡胶促进剂CZ、橡胶促进剂、乳胶促进剂、蓝星大华钛白粉、国标58石蜡、十八烷酸、A120二氧化钛、硬脂酸ST1842、锐钛型钛白粉、SR-2377钛白粉、半精炼58石蜡、58石蜡、硬脂酸st1801、58号半精炼石蜡、黑字氧化锌、工业级防老剂、进口硬脂酸
- 主营：渗透剂、十八胺、乳化剂、十二胺、匀染剂o、石油化工、十六十八醇、醇聚氧乙烯醚、乳百灵、聚丙二醇 PPG、脂肪酸酯、磷酸酯、匀染剂、甘油三油酸酯、辛基酚聚氧乙烯醚、聚醚、消泡剂、农药乳化剂、分散剂、添加剂AC、乳化剂司盘、抗静电剂、纺织前处理助剂
- 主营：玻璃钢、人造石、bmc树脂、脱模剂、固化剂、阻燃树脂、聚酯树脂、模压树脂、玻璃纤维、二苯甲酰、壁罐树脂、打磨胶衣、环氧树脂、模具胶衣、腻子树脂、拉挤树脂、无碱玻璃、仿玉树脂、酚醛环氧、韧性树脂、苯甲乙酸、水晶树脂、卫浴树脂、硬脂酸锌、模具树脂
- 主营：苯甲醇、抗冻剂、丙三醇、脱模剂、润滑剂、叶面肥、慢干溶剂、二甲基亚砜、二甲基乙酰胺、十二水硫酸铝钾
- 主营：云天化pom、美国杜邦pom、日本宝理pom、日本旭化成pom、德国巴斯夫tpu、科思创tpu、奇美abs、德国朗盛pa66、美国首诺pom、泰科纳pom、韩国可隆pom、韩国工程pom、韩国乐天pc、日本三菱pom、PPO、沙伯基础pc/abs、法国阿科玛pvdf、PPA、云天化POM m90、美国陶氏poe、埃克森美孚poe、云天化聚甲醛、pom云天化m90、LCP、PTFE
- 主营：减水剂、分散剂、葡萄糖酸钠、聚合氯化铝
- 主营：鹅卵石、雨花石、夜光石、水洗石、彩色石子、火山岩、烘干砂、石英砂、金刚砂、彩砂、鹅卵石切片、蘑菇石、膨润土、面包石、高岭土、微硅粉、硅微粉、重钙粉、白云石粉、火山石粉、轻钙粉、滑石粉、硅酸铝粉、矿粉、粉煤灰
- 主营：tpu、Eva、Pom、Pa66、Lcp、Pa6t、Pa9t、Pa6、Poe、Hdpe、Ldpe、Lldpe、Pc、Hips、Pbt、Pctg、Pc/abs、Abs、pp、Ppsu、Pps、Para、Tpee、Pa612、Pa12
- 主营：乳化油、金属切削液、铜拉丝乳化油、混凝土脱模剂、防火板脱模剂、铝拉丝油、防锈乳化油