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Release agent

 
                                                                                Provides a sustainable protective barrier for production and makes demoulding of molded parts easy and efficient.

What is a Release Agent? 

Silicone Products

A release agent is a coating that uses a silicone stock solution or is diluted with various diluents. It has low surface tension, low surface energy, and super spreadability, and can form a film on an extremely irregular and complex interface, providing a uniform and regenerative release film between the surface of the substrate and the molded product. It effectively avoids the bonding between the processed product and the substrate, so that the demoulding of the product becomes simple and efficient. Silicone release agent is suitable for various material substrate molding processes, such as molding, extrusion, injection molding, lamination, calendering, etc.

Synonyms: Silicone release agent, mold release agent, surface lubricant, slip agent, antiblocking agent.

Release agent structure

Release agent is a siloxane or silicone polymer composition containing Si-O-Si bonds to form the main chain structure. Silicone is chemically inert, so the release agent is an inert substance, which solidifies into a layer of inert coating intervening between the product and the substrate when the product is molded, thereby weakening or isolating the adhesion, and providing a certain amount of lubrication to reduce the demoulding resistance, achieve the rapid and safe stripping of the product, improve the appearance quality of the product, reduce the post-processing process, improve production efficiency and reduce its production cost. Release agents are usually used in industrial fields such as rubber, die-casting, food processing, and plastics, used for anti-adhesion between molded products and molds, which helps to create durable, high-surface finish products， and keeps the surface of the mold in a lubricated state, thereby reducing the loss of the mold, prolonging the service life of the mold, and greatly saving the operating cost.

Release agent type

According to different purposes of rubber, resin, food, die-casting, surface treatment, etc., the silicone mold release agents that Yongrui team can provide are emulsion type, fluid type, Solvent type, and spray type. To provide you with the best solution for mold release agents, reduce the risk of defective products caused by demoulding, reduce the wear and tear on the mold when the product is formed, reduce the maintenance cost of the mold, and maximize economic benefits.

Fluid release agent

Fluid release agent is mainly composed of linear high-molecular silicone polymers, such as methyl phenyl silicone oil, methyl silicone oil and various modified silicone oils. For different usage occasions, decide whether to use water or solvent for dilution. The fluid release agent can be directly used as the original solution for occasions where it is not suitable to add water or solvents. The higher the viscosity of dimethyl silicone oil, the more obvious the release effect. But the lower the viscosity, the better the affinity and the better the lubricating effect on the mold. For molds below 100°C, solvents such as toluene and xylene can be used for dilution. For precision casting high-temperature molds, mineral terpene solvents can be used for dilution.
Product list

Type
 		 Model Appearance Specific gravity（25C°） Viscosity 25C°mm²/s Non-volatile  150C°/24 h Thinner Features Usage
Fluid type YR-RF100 Colorless transparent 0.97 100～100,000 more than 98.5 Toluene, xylene or mineral terpene Dimethyl silicone oil.Suitable for scenarios where solvents or water should not be added. Base oil for a silicone release agent. Release agent, lubricant and polishing agent for various plastics, rubber molding processing and precision casting industries.
YR-RF101 Dark brown 0.97 100～100,000 more than 98.5 Toluene, xylene or mineral terpene Dimethyl silicone oil.It can be used at a high temperature of 250C°.Excellent thermal oxidation stability.
YR-RF102 Colorless transparent 1.07 400 more than 99 Toluene, xylene or mineral terpene Methyl phenyl silicone oil.Good heat resistance and decorative.
YR-RF103 Pale yellow liquid 1.03 900 more than 98 Toluene, xylene or mineral terpene Modified Methyl Styryl Silicone Oil.Good heat resistance.
YR-RF104 Pale yellow liquid 0.89 500 more than 97 Toluene, xylene or mineral terpene Long chain alkyl modified silicone oil. Excellent printing decoration performance and lubricity
YR-RF105 Pale yellow liquid 0.89 700 more than 95 Toluene, xylene or mineral terpene Long chain alkyl modified silicone oil. Excellent decorative properties
YR-RF106 Pale yellow liquid 1.03 1600 - Toluene, xylene or mineral terpene Water soluble type.The solvent is water or ethanol.Excellent heat resistance and lubricity. Bend the hose.
YR-RF107 White translucent - 250 99 Toluene, xylene or mineral terpene Paste.Excellent heat resistance, durability, lubricity. Bending hose, melt spinning.
Emulsion type
Emulsion type release agent is based on silicone oil or silicone resin and is an emulsification system after adding various emulsifiers for emulsification (OW type). It has the advantages of good spreadability, stable dilution, and storage stability. After diluting with water, it has the advantages of simple operation, high economic benefit, safety, and sanitation.
Product list
Type Model Appreance Specific gravity （25C°） Base oil viscosity
 25C°mm²/s		 Non-volatile 150C°/24 h PH Ionicity Features Usage
Emulsion type YR-EM101 Milky white liquid 1.0 400 30 5.0 Weak anion Make Food Packaging Containers and provide a non-stick surface. Trays, films, papers, gaskets, tubes, etc.
YR-EM102 1.0 1000 33 5.0 Weak anion
Make Food Packaging Containers.
 
YR-EM103 1.0 10000 33 5.0 Weak anion Make Food Packaging Containers.
Good anti-clogging effect.
YR-EM104 1.02 Low 30 4.0 Nonionic Make Food Packaging Containers. Excellent decorative and heat resistance.
YR-EM105 0.96 Middle 30 5.0 Nonionic Good wettability to metal molds. Dust and dirt adhering to metal molds can be removed. Rubber, and plastic demoulding.
Polishing and surface lubricant for plastics, wood, metal, rubber, glass, leather.
Automobile wax, tire wax and other automotive chemicals.
YR-EM106 0.99 Low 38 7.0 Nonionic
Good polishability and dilution stability.
 
YR-EM107 1.0 Low 28 7.0 Nonionic YR-EM107 is a low-concentration version of YR-EM106.
YR-EM108 1.0 Low 30 7.0 Weak anion Excellent dilution stability, and mechanical stability. Containing methyl silicone oil with different degrees of polymerization, continuous effect YR-EM110>YR-EM111>YR-EM112>YR-EM109>YR-EM108
YR-EM109 1.0 High 30 7.0 Weak anion
YR-EM110 1.0 High 30 8.0 Weak anion
YR-EM111 1.0 High 38 6.5 Anion
YR-EM112 1.0 High 61 7.5 Weak anion
YR-EM113 1.0 Low 60 7.5 Nonionic Good dispersion and dilution stability are particularly good. High viscosity type.  
YR-EM114 1.0 High 60 4.0 Nonionic
Base oil viscosity is higher than YR-EM113
YR-E100SC   0.97 Middle 32 7.2 Weak anion
Suitable for metal die casting
 		 Aluminum, magnesium
Solvent type
Solvent type release agent is based on silicone oil or silicone resin, which is soluble in industrial gasoline, toluene, and other solvents. This type of release agent is especially suitable for places where low temperature is avoided and where it is inconvenient to add water. Since the solvent in the solvent-based release agent evaporates quickly, it has a certain cleaning function and can effectively remove the dust attached to the mold after film formation or dirt.
Product list

Type
 		 Model   Specific gravity（25C°） Non-volatile 150C°/24 h Thinner Features Usage
Solvent type YR-S101 Colorless or pale yellow transparent liquid 0.82 5 Industrial gasoline
High viscosity simethicone as base oil.Excellent sustainability
 		 Molding of rubber and plastics and casting shell molds. Tire molding.
YR-S102 Light yellow transparent liquid 0.86 50 Petroleum hydrocarbons
Excellent dispersion.
 
YR-S103 Colorless transparent liquid 0.99 50 Toluene
It is especially suitable for the release of thermosetting resins.
 		 Epoxy, phenolic, urethane resin molding
Spray type
Spray type release agent is fluid type, emulsion type and solvent type release agents in the form of gaseous application. It is very convenient and fast to use. Ideal for fine mold and difficult-to-coat areas.
Product list
Type Model Viscosity 25C°mm²/s Specific gravity（25C°） Appearance Features Usage
Spray type YR-RF100S 1000 0.97 Spray type for YR-RF100
Good heat resistance and lubricity. It can be used as a polishing agent.
 		 It can be used for demoulding and polishing of rubber, thermosetting resin, and metal products.
YR-RF104S 500 0.89 Spray type for YR-RF104S
Excellent print decoration performance
 
YR-RF101S 100 0.965 Spray type for YR-RF101
It can also maintain its excellent thermal stability at high temperatures above 250 °C.
 
YR-S103S - 0.99 Spray type for YR-S103
Excellent bonding performance
 
YR-E100SCS - 0.97 Spray type for YR-E100SC
The release agent hardly transfers to the molded product and can be demolded many times.
 

Release agent properties

Select release agents with different properties according to different usage purposes to ensure smooth mold release of formed parts with the shortest manufacturing cycle and expand economic benefits.
■ Can be applied to almost all forming materials and used in occasions such as metal casting, rubber, plastics, food packaging containers, etc.
■ Release agent with silicone as the main component has strong heat resistance and low temperature resistance, and the working temperature exceeds the processing temperature range of all molding materials.
■ There are almost no restrictions on safety and hygiene, even if the release agent is carbonized or decomposed due to high temperature, there will be no toxic by-products released during film formation.
■ With good chemical inertness, it is not easy to be oxidized in a wide temperature range, not easy to burn, and has no carbonaceous residue. Therefore, it will not cause damage to products and molds such as corrosion, expansion, and deformation and can also prolong the service life of the mold.
■ With ultra-low surface tension and lubricity, it can be easily and evenly coated on the surface of different substrates, so the release property is excellent, and it can effectively prevent the phenomenon of mold jamming during the molding process, thereby reducing waste products, shortening the production cycle, and create greater economic benefits for enterprises.
■ Easy to operate, can be used by coating or spraying. Especially the emulsion release agent is very easy to operate after dilution, and has excellent dilution stability, storage stability and mechanical stability.
■ A silicone release agent with silicone resin as the main component forms a stable working film after the solvent volatilizes and hardly migrates to the surface of the processed parts. Commonly used in metal, plastic and other materials processing molding.

Release agent uses

The selection of the correct release agent is essential during the early development and production of molded parts. The release agent should be selected under the conditions of the mold conditions (material, structure, and shape), the material of the product to be formed, the post-processing technology (painting, bonding, embossing, etc.), thinner, and the limit temperature of the forming process of the molded product. For example, when epoxy resin, polyurethane rubber and polyurethane resin are processed and molded, long-chain alkyl silicone oil is used to release the mold, which can effectively prevent the cured silicone substance from migrating to the surface of the molded product, reducing the phenomenon of whitening and cracking on the surface of the product, and then reduce the Defective products caused by demoulding.
Plastic industry
Release agent is an indispensable molding processing aid in the plastic industry. Use emulsion or solvent type release agent as surface treatment lubricant to meet different molding processes of plastics, such as injection molding, compression molding, lamination molding, casting molding, etc., to promote the separation of molds and products. There are many kinds of plastic molding materials, such as polyvinyl chloride, polyurethane, epoxy resin, polystyrene, and acrylic resin. They can be pre-smeared or sprayed on the surface of the mold when they are processed and formed. After curing into a film, a protective barrier is formed between the mold and the plastic to prevent adhesion and ensure the smooth removal of the finished product. At the same time, it has selective adhesion ability, can preferentially adhere to the surface of the mold, and reduce the stress of plastic parts from the mold. It effectively solves the problem of increasing the production cycle due to the difficulty of mold release of the finished product and is the first choice for the plastic industry.
Plastic release agents have many advantages: 
■ Improve the surface quality of plastic products, such as improving gloss and lubricity.
■ Maintain the integrity of the product and improve the post-processing performance of the plastic.
■ No corrode the mold, no pollute the molded product.
■ Good heat resistance, not easy to decompose, can be used in extreme environments.
■ As a protective film, improve the life of the mold.
Metal die casting
Metal die casting release agents generally use emulsion type release agents. Emulsion type mold release agent has excellent dilution stability and is uniformly dispersed in the form of micron-sized extremely fine particles on the high-temperature surface of the mold to form a functional film. In addition, it has good wetting and spreading properties on the metal mold and has the function of removing dirt and dust attached to the metal mold. In addition, it can also adjust the temperature of the mold surface, play a constant temperature role, improve the formability of the product, and can also reduce the wear and tear of the mold, and prolong the life of the mold.

Why choose Yongrui as your partner for release agent

  • Experience

    13 years experience manufacurer 
    release agent.

  • OEM/ODM

    All kinds of release agent can be produced according to customer requirements.

  • Certification

    Passed SGS, ROSH and FDA certification. That means that we guarantee to provide you with high-quality release agent​​​​​​.

  • Batch

    We uses advanced machinery and equipment to produce and provide release agent​​​​​​​ with stable performance and quality assurance.
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