In high-temperature processing techniques such as aluminum alloy die casting, magnesium alloy forming, and engineering plastic injection molding, the adhesion issue between the product and the mold surface directly affects production efficiency and product quality. Traditional demolding products tend to carbonize and accumulate dirt at high temperatures, which not only shortens the mold lifespan but also affects the coating and bonding properties of the demolded products. Our company has launched the product "Demolding Agent 257", a long-chain alkyl and aryl alkyl co-modified polysiloxane. With its thermal stability above 300 degrees Celsius, high demolding efficiency, and the ability to directly undergo secondary processing after demolding, it demonstrates significant industrial application value in aluminum alloy die casting, plastic rubber molding, and high-temperature lubrication fields.


I. Core Physical and Chemical Properties and Components of the Product


The appearance of Demolding Agent 257 is a light yellow to colorless transparent liquid with an effective component content of over 99%, a viscosity of 1,000 to 1,500 centistokes, and a thermal resistance of above 300 degrees Celsius. This product is a long-chain alkyl and aryl alkyl co-modified polysiloxane. By introducing long-chain alkyl and aryl alkyl groups onto the main chain of the polysiloxane, its thermal stability, lubricity, and organic compatibility have been significantly improved. Compared to ordinary dimethyl silicone oil demolding agents, this product has stronger high-temperature stability and can form a uniform and durable isolation film on the mold surface without decomposing and carbonizing at high temperatures.


II. Core Performance Advantages


Demolding Agent 257 demonstrates the following core performance advantages in high-temperature demolding applications:


Excellent high-temperature resistance and low carbonization characteristics. The product has a thermal resistance of above 300 degrees Celsius, and the oil phase can withstand the mold temperature without smoke, component damage, carbonization, or residue on the mold. This characteristic effectively solves the problem of traditional demolding agents generating carbon deposits at high temperatures, which can damage the mold and product surfaces, helping to extend the mold lifespan.


High demolding efficiency and economical usage. The product has high demolding efficiency and low usage. When used as an aluminum alloy die casting demolding agent, it can be emulsified and used after emulsification. Through experiments, 15% of the emulsified liquid can be diluted to 100 to 150 times for use, significantly reducing the usage cost.


The demolded products can be directly subjected to secondary processing. The surface of the demolded products does not need to be cleaned before applying coatings, paints, and gold plating, which is an important advantage distinguishing this product from traditional demolding agents, simplifying the subsequent processes and reducing production costs.


III. Wide Application Areas


Demolding Agent 257, with its multi-functional performance combination, can play an important role in the following key application areas:


1. Aluminum alloy die casting demolding. As a die casting demolding agent, it can effectively cope with the high-temperature flushing of aluminum alloy liquid, prevent mold sticking, and ensure the surface finish and dimensional accuracy of the castings. Its high-temperature low carbonization characteristics are particularly suitable for the production of large and complex die-castings.


2. Plastic product molding demolding. Suitable for demolding of polyurethane, epoxy resin, and polyvinyl chloride plastic products. It can be diluted with hydrocarbon or benzene-based solvents to form oil-based demolding agents.


3. Rubber product manufacturing. Including rubber pads, backing blankets for cushions, and heart shafts for packaging materials, the demolding and lubrication of rubber products.


4. Other high-temperature lubrication applications. Such as tire forming demolding agents, engineering plastic forming demolding agents, and high-temperature conductive oils and lubricants.


IV. Usage Suggestions and Dilution Guidelines


When used as an aluminum alloy die casting demolding agent, Demolding Agent 257 should be emulsified for use. The dilution ratio of the emulsified liquid can be adjusted according to the actual process. For plastic product demolding, it can be diluted with alkane-based solvents such as 120# solvent gasoline, trichloromethane, and toluene. It is recommended to conduct a small-scale test before dilution to determine the optimal ratio.


V. Packaging Specifications and Storage Conditions


Product High-Temperature Release Agent 257 is packaged in 50-kilogram plastic drums and can also be customized according to user requirements. It should be stored sealed at a temperature range of 0 to 40 degrees Celsius. During transportation and storage, it should avoid high temperatures and freezing. The shelf life is twelve months. This product is non-hazardous.


VI. Quality Assurance and Industry Application Value


During the production process, a strict quality control system has been established for Product High-Temperature Release Agent 257. Key indicators such as product appearance, effective component content, viscosity, and heat resistance are tested throughout the process to ensure consistency and reliability between batches. As the aluminum alloy die-casting industry continues to develop towards larger scale and higher precision, and as the demand for high-quality release agents in engineering plastics, rubber products, and other fields continues to grow, this product, with its excellent high-temperature resistance and low carbon deposition performance, efficient economic de-molding properties, and friendly characteristics for subsequent processes, is becoming an important additive option in the aluminum alloy die-casting, plastic and rubber molding, and high-temperature lubrication fields. It provides strong product support for promoting the improvement of production efficiency and product quality in related industries.