This silicone‑free ester‑based rubber release agent is formulated with synthetic organic ester as core active component, matched with high‑performance lubricating additives, surface wetting agents and volatile hydrocarbon carrier. No silicone‑containing raw materials are incorporated into the formula. When applied onto mandrels, curing jigs or vulcanization equipment surfaces before production, the volatile carrier evaporates rapidly and creates a homogeneous heat‑resistant ester lubricating sep

Product Detail

Product Detail Page: The release agent is manufactured via precise thermal blending of selected synthetic ester base stock with functional lubricants and wetting additives. Filtration process removes insoluble particles. Each production batch is tested for lubricating performance, thermal oxidation resistance and practical vulcanization demolding behavior to guarantee stable quality for rubber extrusion workshops.

Extruded rubber hoses and continuous rubber profiles undergo high‑temperature vulcanization after extrusion. Many conventional silicone‑containing release agents bring invisible residual contamination onto rubber surfaces. This contamination creates serious difficulties in subsequent bonding, printing and coating procedures. Some wax‑based silicone‑free release agents tend to melt unevenly under vulcanization temperature. They may transfer visible wax residues onto rubber surfaces, resulting in blooming on finished hose and profile products. Such blooming defects reduce the surface quality and commercial value of extruded rubber parts.

After thorough cleaning of mandrels, jigs or curing trays, the release agent can be applied by wiping, brushing or spraying. Volatile carrier evaporates quickly, leaving a continuous ester‑based lubricating barrier film. Under high‑temperature vulcanization conditions, this separating film retains stable lubricating property. It effectively prevents hot cross‑linking rubber compound from sticking to metallic tooling. Extruded rubber hoses and long rubber profiles can be smoothly separated from the tooling after curing. Since there is no silicone migration and minimal solid‑wax blooming tendency, the finished rubber components stay free from harmful surface contamination.

Even with optimized anti‑contamination formulation, over‑application must be strictly avoided. Excessive coating of ester‑based release agent may suffer thermal decomposition under repeated vulcanization heat, gradually generating carbon‑rich deposits on tooling surfaces. The lubricating film will gradually wear after repeated production cycles. Operators should regularly observe the stripping condition of rubber hoses and profiles. When sticking tendency begins to appear, tooling shall be cleaned and re‑coated with release agent. For products with strict surface requirements, small‑scale pre‑production trials are strongly recommended before full‑scale manufacturing.

For workshop operation, completely remove old carbonized residues from mandrels and curing jigs. Apply a thin, uniform coating of release agent. Allow sufficient flash‑off time for full carrier evaporation before placing uncured rubber parts into vulcanization environment.

Avoid foreign particle contamination, prolonged high‑temperature storage and direct sunlight exposure. Long‑term hot storage may accelerate oxidation of organic ester and degrade lubricating performance.

Major application fields: release auxiliary for extruded rubber hose vulcanization; demolding agent for continuous extruded rubber profile production; non‑contaminating silicone‑free releasing agent for rubber extrusion processing lines.

Store the product in tightly‑sealed original metal or plastic drums within 10‑30℃. Keep away from direct sunlight and heat sources.

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Ester-Based Rubber Release Agent Silicone-Free, Extrusion Hose & Profile Release No Product Contamination

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.