Internal Lubricant
Lubricant G60 is a polyol fatty acid ester, respectively used for PVC processing internal lubricant, with good transparency and dispersion, especially suitable for transparent products and foaming products.
Product Description
Lubricant G60 is an ester-based internal lubricant developed for PVC and other polymer processing applications. It provides good compatibility with PVC resin and helps reduce friction between polymer molecular chains during melting and processing.
As a PVC internal lubricant, Lubricant G60 can improve melt flow, promote more uniform processing and support the production of products with good transparency and surface appearance. It is suitable for rigid and semi-rigid PVC formulations, especially PVC pipes, fittings, profiles, transparent sheets and foam products.
| Testing items | Unit | G60 | G62 | G74 |
| Bulk Density | g/cm³ | 0.86-0.90 | 0.87-0.92 | 0.88-0.94 |
| Refractive Index | 80℃ | 1.448-1.453 | 1.433-1.462 | 1.420-1.470 |
| Iodine Value | gl2/100g | 1.0max | 2.0max | 2.0max |
| Acid Value | mg KOH/g | 4.0max | 2.7max | 12.0max |
| Melting Point | ℃ | 48-50 | 49-53 | 42-48 |
| Moisture Content | % | 1.0max | 1.0max | 1.0max |
| Residue | % | 0 | 0 | 0 |
Lubricant G60 mainly reduces friction between PVC molecular chains. This helps improve molecular movement during processing and supports smoother material flow through extrusion and molding equipment.
Unlike external lubricants, which mainly reduce adhesion between PVC melt and metal surfaces, G60 primarily works within the polymer system.
Adding a suitable amount of Lubricant G60 can reduce internal friction and improve the flow characteristics of PVC melt. This is particularly useful for products with complex shapes, such as injection-molded fittings and technical profiles.
Lubricant G60 has good compatibility with PVC resin and can be distributed evenly within the formulation. Appropriate compatibility helps reduce lubricant migration and supports stable long-term product appearance.
The Lubricant G60 is suitable for transparent and translucent PVC formulations. Its controlled refractive index and good resin compatibility help minimize the negative effect of lubrication additives on product clarity.
Lubricant G60 helps maintain more uniform material flow during extrusion, injection molding and calendering. Stable processing can reduce fluctuations in torque, pressure and surface quality.
Lubricant G60 can assist with the distribution of pigments, processing additives and selected fillers within PVC compounds. More uniform dispersion helps improve color consistency and finished-product appearance.
Lubricant G60 can be used in rigid PVC pipe formulations to improve internal melt flow and processing uniformity.
It is suitable for products such as:
PVC drainage pipes
PVC electrical conduit
PVC water supply pipes
PVC pressure pipes
PVC industrial pipes
The product should normally be used together with an appropriate external lubricant to achieve a balanced PVC lubrication system.
Injection-molded PVC fittings often have complex flow paths and require good melt mobility. G60 can help the PVC melt fill detailed mold areas more evenly and support stable molding.
Typical products include elbows, tees, couplings, reducers, valves and drainage fittings.
In PVC profile extrusion, G60 can improve internal melt flow without excessively reducing fusion. It is suitable for window profiles, door profiles, decorative profiles and other rigid PVC extrusion products.
When combined with suitable external lubricants and processing aids, it can support consistent extrusion and good profile surfaces.
Lubricant G60 is suitable for PVC foam products because of its compatibility and processing performance.
Potential applications include:
PVC foam boards
WPC foam boards
Celuka foam boards
Free-foam sheets
Decorative foam profiles
PVC cabinet boards
The dosage should be adjusted according to the foaming regulator, blowing agent, calcium carbonate content and required foam density.
Lubricant G60 can be used in transparent PVC sheets, films and packaging products where clarity and surface appearance are important.
The complete formulation should use compatible stabilizers, lubricants and processing additives to minimize haze, migration and surface defects.
For rigid or semi-rigid PVC containers, Lubricant G60 can improve processing flow and support transparency. Raw-material compliance and regulatory requirements should be confirmed separately for the intended packaging application.
G60 may also be used in selected PVC wire and cable formulations to improve internal lubrication, material flow and extrusion consistency.
The final grade and dosage should be selected according to the plasticizer content, filler level, cable performance requirements and extrusion conditions.
PVC formulations normally require both internal and external lubrication.
| Comparison | Internal Lubricant G60 | External Lubricant |
| Primary Function | Reduces friction within the PVC melt | Reduces adhesion between PVC and metal |
| Main Effect | Improves melt flow and processing | Improves release and prevents sticking |
| PVC Compatibility | Relatively high | Relatively low |
| Effect on Fusion | Can support or adjust melt processing | Excessive dosage may delay fusion |
| Typical Products | Ester-based lubricants | PE Wax, paraffin wax and selected waxes |
| Typical Use | Pipes, fittings, profiles and transparent products | Extrusion, calendering and mold release |
G60 should not normally be considered a complete replacement for external lubricants. A balanced lubricant package is recommended for consistent PVC processing.
| Test Item | Unit | G60 | G62 | G74 |
| Density | g/cm³ | 0.86–0.90 | 0.87–0.92 | 0.88–0.94 |
| Refractive Index at 80°C | — | 1.448–1.453 | 1.433–1.462 | 1.420–1.470 |
| Iodine Value | g I₂/100 g | ≤1.0 | ≤2.0 | ≤2.0 |
| Acid Value | mg KOH/g | ≤4.0 | ≤2.7 | ≤12.0 |
| Melting Point | °C | 48–50 | 49–53 | 42–48 |
| Moisture Content | % | ≤1.0 | ≤1.0 | ≤1.0 |
| Residue | % | 0 | 0 | 0 |
The appropriate ester lubricant grade should be selected according to PVC type, transparency requirements, processing method, stabilizer system and desired lubrication balance.
Shandong Shitong Polymer Materials Co., Ltd. supplies PVC processing additives for pipe, profile, sheet, foam board and other polymer applications.
Our Lubricant G60 offers:
Stable technical specifications
Good compatibility with PVC
Reliable internal lubrication
Suitability for transparent PVC products
Application in rigid and foam PVC
Batch quality control
Technical selection support
Bulk order supply
Customers can provide their PVC formulation, product type, processing method and performance requirements. Our technical team will assist with product selection and formulation evaluation.
Lubricant G60 is an ester-based internal lubricant used primarily in PVC processing. It reduces friction between polymer molecular chains and helps improve melt flow, processing stability and surface quality.
G60 is primarily classified as a PVC internal lubricant. It has relatively good compatibility with PVC and mainly works within the polymer melt.
A separate external lubricant may still be required to reduce adhesion between PVC and processing equipment.
G60 can be used in PVC pipes, pipe fittings, window profiles, technical profiles, transparent sheets, bottles, foam boards and selected wire and cable compounds.
Yes. G60 has good compatibility and is suitable for transparent and translucent PVC products. The final transparency will also depend on the stabilizer, processing aid and complete lubricant system.
Yes. G60 can be used in PVC foam board and foam profile formulations to improve internal melt flow and processing uniformity.
The dosage should be coordinated with the foaming regulator, blowing agent and external lubricant.
G60 can be used in PVC formulations containing calcium-zinc stabilizers. Formulation testing is still recommended because the required lubrication balance varies according to stabilizer composition and processing conditions.
G60 is mainly an internal lubricant with relatively good compatibility with PVC. PE Wax is generally used as an external lubricant to reduce adhesion between the PVC melt and metal processing surfaces.
The two products can be used together as part of a balanced PVC lubrication system.
The dosage should be determined according to the PVC resin, filler content, stabilizer system, equipment and desired fusion behavior. Small-scale formulation testing and production trials are recommended.
Looking for a reliable Lubricant G60 manufacturer or PVC internal lubricant supplier?
Contact Shitong with your application, formulation, processing method, required quantity and packaging requirements. We can provide technical specifications, product selection support and quotation information.
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