Internal and External Lubricant
Our Products
Shitong supplies reliable internal and external lubricant solutions for PVC processing, helping improve melt flow, reduce friction and equipment adhesion, and enhance the surface quality of finished products.
Shitong is a plastic lubricant manufacturer and supplier providing internal and external lubricants for plastic processing applications. Our product range includes Polyethylene Homopolymer Wax, Oxidized Polyethylene Wax (OPE) and Lubricant G60, supporting different material formulations and processing requirements.
Plastic lubricants play an important role in controlling friction, improving melt flow and optimizing material processing. Whether you manufacture PVC pipes, plastic profiles, foam boards, sheets or other plastic products, selecting the right lubricant helps improve processing efficiency and finished product quality. Shitong provides product recommendations based on your material system, production process and application requirements.
Internal and external lubricants serve different functions in plastic processing. Internal lubricants primarily reduce friction within the polymer melt, while external lubricants help reduce friction between the material and processing equipment. The appropriate combination depends on the polymer type, formulation and processing conditions.
An internal lubricant reduces friction between polymer molecules during processing, helping improve melt flow and regulate plasticization behavior. It can support more uniform material processing and help manufacturers achieve consistent production results.
When selecting an internal lubricant, manufacturers should consider polymer compatibility, melt characteristics, processing temperature and the required properties of the finished product.
An external lubricant mainly reduces friction between molten plastic and metal surfaces such as screws, barrels and extrusion dies. It helps improve material release, control equipment adhesion and support smoother processing.
External lubricants are particularly important in extrusion and molding processes where friction, die buildup and surface quality need to be carefully controlled.
| Comparison | Internal Lubricant | External Lubricant |
|---|---|---|
| Primary Function | Reduces friction within the polymer melt | Reduces friction between plastic and metal surfaces |
| Processing Effect | Supports melt flow and plasticization | Supports material release and reduces equipment adhesion |
| Key Considerations | Compatibility, fusion and melt flow | Metal release, surface finish and processing friction |
| Typical Applications | Plastic extrusion and molding formulations | Plastic extrusion, molding and other processing operations |
Internal and external lubricants are often used together in plastic formulations. An appropriate balance helps manufacturers manage processing performance without compromising the quality of finished products.
Shitong supplies different lubricant products for plastic processing, including polyethylene wax, oxidized polyethylene wax and ester-based internal lubricant. Each product has different characteristics and application considerations.
Polyethylene Homopolymer Wax (PE Wax) is a polyethylene-based lubricant used in plastic processing formulations. It is commonly considered for external lubrication, helping reduce friction between plastic materials and processing equipment.
In PVC processing, PE wax can help improve material release and processing lubrication. It is suitable for evaluation in formulations where extrusion performance, equipment release and finished surface quality are important.
Oxidized Polyethylene Wax (OPE) is a modified polyethylene wax containing polar functional groups. Compared with conventional polyethylene wax, its different polarity provides distinct compatibility and dispersion characteristics in plastic formulations.
OPE is used in plastic processing and additive formulations where lubrication, dispersion and material compatibility need to be considered. It can be evaluated for PVC processing and other suitable polymer systems according to the specific product grade and formulation.
Lubricant G60 is a polyol fatty acid ester designed for internal lubrication in PVC processing. It features good transparency and dispersion properties, making it particularly suitable for transparent PVC products and PVC foam materials.
For manufacturers producing transparent PVC products, foam boards and other PVC materials, G60 provides an internal lubrication option to help optimize formulation performance and processing conditions.
Plastic lubricants are used across different polymer processing systems. The appropriate lubricant depends on the material, production method and required finished product characteristics.
PVC processing requires a balanced lubrication system to control melt flow, plasticization and friction between the material and processing equipment. Internal and external lubricants are commonly combined in PVC extrusion and molding formulations.
Shitong offers PE Wax, OPE and Lubricant G60 for different PVC processing requirements, including pipes, profiles, sheets and foam products. Product selection should be based on the formulation and desired processing performance.
Polyethylene processing involves different extrusion and molding applications, including films, sheets and molded plastic products. Lubricant selection should consider resin characteristics, processing temperature, additive compatibility and the requirements of the finished product.
Polyethylene-based wax products can be evaluated in suitable PE formulations where processing lubrication and dispersion are required. The appropriate grade should be confirmed through formulation testing.
Polypropylene is widely used in injection molding, extrusion and other plastic manufacturing processes. Depending on the formulation and production requirements, suitable wax-based processing additives may be considered to help manage friction and material processing behavior.
When selecting lubricants for PP, manufacturers should evaluate compatibility with the resin, processing conditions and the required surface and mechanical properties.
Foam products and transparent PVC materials have specific formulation requirements. PVC foam production requires a balanced additive system to regulate melt flow and maintain a suitable foaming process, while transparent PVC products place greater emphasis on clarity and dispersion.
Shitong's Lubricant G60 is particularly suitable for PVC transparent and foam applications. Its internal lubrication characteristics, transparency and dispersion properties make it an option for manufacturers developing these products.
Choosing a suitable plastic lubricant requires evaluating the material formulation and production process together. The following factors can help manufacturers identify an appropriate lubricant solution.
Polymer Type: Identify whether the formulation uses PVC, PE, PP or another polymer. Different materials require different lubricant compatibility and performance considerations.
Lubrication Requirements: Determine whether the formulation requires internal lubrication, external lubrication or a balanced combination of both.
Processing Method: Consider extrusion, injection molding and other manufacturing processes, as each involves different friction and material flow conditions.
Processing Temperature: Evaluate the operating temperature and processing conditions to ensure the lubricant is suitable for the production system.
Finished Product Properties: Consider transparency, surface smoothness, foam structure and other application-specific requirements.
Formulation Compatibility: Evaluate how the lubricant interacts with resins, stabilizers, processing aids, fillers and other additives.
Shitong specializes in the research, development and production of rubber and plastic additives. We provide lubricant products and formulation support for manufacturers seeking suitable additive solutions for their production processes.
Multiple Lubricant Options: PE Wax, Oxidized Polyethylene Wax and Lubricant G60 for different formulation requirements.
Application-Based Recommendations: Product selection according to material characteristics, processing conditions and finished product requirements.
Formulation Support: Technical assistance to help customers evaluate lubricant combinations and additive formulations.
Quality Control: A quality control system supporting consistent product quality.
Long-Term Cooperation: Product supply and technical support for customers seeking stable long-term partnerships.
A plastic lubricant is an additive used during plastic processing to reduce friction and improve material flow or release behavior. Depending on its function, it can be classified as an internal lubricant or an external lubricant.
Internal lubricants primarily reduce friction within the polymer melt and help regulate melt flow. External lubricants mainly reduce friction between plastic materials and processing equipment, helping improve release and reduce equipment adhesion.
Yes. Polyethylene wax is used in various plastic additive formulations, particularly as an external lubricant in PVC processing. Its suitability for other polymer systems depends on the product grade, formulation and processing requirements.
Oxidized polyethylene wax is used in plastic processing and additive formulations. Its polarity and compatibility characteristics make it useful in applications involving lubrication and dispersion. The appropriate application depends on the polymer system and product grade.
Lubricant G60 is an internal lubricant suitable for transparent PVC products. It offers good transparency and dispersion properties and can also be used in PVC foam applications.
Not necessarily. Different polymers have different processing characteristics and compatibility requirements. A lubricant suitable for PVC may not provide the same performance in PE or PP formulations. Manufacturers should evaluate the product grade and conduct formulation testing before production.
Looking for a reliable plastic lubricant manufacturer and supplier? Shitong offers polyethylene homopolymer wax, oxidized polyethylene wax and Lubricant G60 for different plastic processing requirements.
Tell us about your polymer material, production method and finished product requirements. Our team can help you evaluate suitable internal and external lubricants for your formulation.
Contact our team to discuss your plastic lubricant requirements and explore suitable additive solutions for your business.
Shitong supplies reliable internal and external lubricant solutions for PVC processing, helping improve melt flow, reduce friction and equipment adhesion, and enhance the surface quality of finished products.
Customize to Meet Your Needs
According to the characteristics and application fields of customers' products, we can provide customers with the most suitable foaming agents and lubricants and other rubber and plastic additives.
Largest producer of blowing agents.
Provide the recipe.
Strict quality control system, to provide customers with the best quality products.
Good after-sales service, so that customers have no worries.
Looking for Stable Long-term Partnerships
We are seeking reliable and trustworthy partners to grow our business together and establish long-term relationships. Feel free to contact us to explore partnership opportunities.
