This PDMS‑based silicone mold release agent is a colorless transparent silicone fluid formulated for external mold release operations in rubber and plastic manufacturing. Thanks to its inherent low surface‑tension property, it forms a thin, uniform hydrophobic silicone film over mold cavity surfaces after spraying or wiping. The continuous separating layer prevents molten rubber and plastic materials from adhering to metallic mold surfaces. It delivers consistent releasing effect for repeated mo

Product Detail

Product Detail Page: Manufactured from high‑purity polydimethylsiloxane (PDMS) with CAS 63148‑62‑9, this silicone‑based release agent is produced under controlled processing conditions to maintain stable molecular‑weight distribution. The base silicone fluid exhibits outstanding thermal stability, excellent hydrophobic property and good lubricating characteristics. No extra heavy solid fillers are added into the formula.

In rubber and plastic molding production, hot polymer materials under pressure tend to mechanically stick onto metal mold cavities. Frequent sticking issues cause tearing or deformation of finished parts, require frequent mold cleaning, and seriously reduce overall production efficiency. Conventional release agents often suffer from rapid consumption or uneven film formation, which leads to inconsistent demolding results batch‑by‑batch.

Upon proper application by spraying, brushing or wiping onto clean mold surfaces before molding, this PDMS silicone release agent spreads evenly and builds a thin continuous non‑stick silicone barrier layer. This separating film effectively blocks direct contact between hot rubber / plastic melts and the metal mold. It allows smooth ejection of finished molded components after curing or cooling. The product shows good heat resistance under standard rubber vulcanization and plastic molding temperatures. It is suitable for compression molding, transfer molding and injection molding processes of various rubber compounds and thermoset plastics.

Nevertheless, users should note that residual silicone film left on molded surfaces may interfere with subsequent painting, printing or adhesive bonding operations. For workpieces requiring post‑coating or bonding, extra surface cleaning treatment of molded parts is necessary.

For practical workshop usage, thoroughly clean the mold surface to eliminate old residues before applying the release agent. Apply a thin uniform coat; avoid excessive dosage which would cause heavy silicone migration and oily contamination on finished parts. Re‑apply the release agent periodically after certain molding cycles according to actual demolding conditions.

Keep away from heavy contamination, prolonged high‑temperature storage and direct sunlight. High‑temperature storage will accelerate silicone fluid degradation.

Major application fields: external mold release for compression‑molded rubber parts; demolding aid for thermoset plastic molded components; general‑purpose releasing agent for standard rubber and plastic molding production lines.

Store the product in tightly‑sealed original drums within 10‑35℃. Keep away from open flame and intense heat sources. Gentle agitation is recommended before use for long‑term stored batches.

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Silicone Mold Release Agent (PDMS) CAS 63148-62-9, General-Purpose External Release for Rubber & Plastic Processing

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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.