Lubricant G60 is generally used as a processing lubricant in PVC compounding and extrusion, especially when manufacturers need better melt flow, controlled metal release, and a more stable surface finish. However, “G60” is a commercial grade name rather than a universal chemical standard, so its exact composition and performance must be confirmed through the supplier’s technical documentation. At Shitong, I recommend selecting G60 according to the PVC formulation, processing equipment, product surface requirements, and required production volume—not by grade name alone.
You can find more information on our web, so please take a look.
For a practical evaluation, I would begin with a controlled laboratory trial, compare several dosage levels, and inspect torque, fusion behavior, die release, surface appearance, and mechanical properties. A starting screening range may be approximately 0.5–3.0 phr—parts per hundred parts of resin—but the appropriate level depends on the specific G60 formulation and PVC system. The final dosage should always be confirmed by application testing before commercial production.
This guide is intended for PVC profile, pipe, sheet, panel, cable, flooring, and injection-molding manufacturers evaluating an internal or external lubricant identified as G60. It is also useful for compounders, purchasing teams, process engineers, and distributors comparing technical grades from different suppliers. I focus on selection logic, application matching, supplier evaluation, and practical trial planning.
The guide is especially relevant when a buyer is experiencing high processing torque, sticking at the die, unstable fusion, poor surface gloss, or excessive lubricant migration. These symptoms may come from an unsuitable lubricant balance, but they can also result from incorrect stabilizer levels, filler dispersion, temperature settings, or equipment conditions. For that reason, I treat G60 as one part of a complete formulation and process system.
In PVC processing, lubricants help control friction between polymer particles, additives, metal surfaces, and the processing equipment. An internal lubricant mainly influences melt viscosity and flow within the PVC compound, while an external lubricant supports release between the compound and metal surfaces such as screws, barrels, dies, and molds. A G60 grade may provide one of these functions or a balance of both, depending on its chemical composition.
The practical objective is not to maximize lubrication. Excessive lubrication can delay fusion, reduce output stability, create surface defects, or interfere with printing, coating, welding, and bonding. I therefore recommend evaluating the lubricant together with the complete formulation rather than treating a higher addition level as automatically better.
These applications do not necessarily require the same dosage or lubricant package. A rigid profile may need a different internal-to-external lubrication balance than a flexible cable compound. I recommend testing the product in the actual resin, stabilizer, filler, pigment, and plasticizer system used in production.
Internal lubricants are selected when the formulation needs improved melt flow or reduced internal friction during fusion. External lubricants are selected when metal release, die buildup, or surface friction is the primary concern. Some commercial products are designed as balanced lubricants, but the supplier should identify the intended function and compatibility range clearly.
When comparing G60 products, I look beyond the product name and request information on chemical family, appearance, melting or softening range, recommended dosage, compatibility, packaging, and storage conditions. I also ask whether the grade is intended for rigid PVC, flexible PVC, or both. Without this information, two products carrying a similar G60 designation should not be assumed to be interchangeable.
| Selection item | Why it matters | What I recommend confirming |
|---|---|---|
| Lubrication type | Determines flow, fusion, and release behavior | Internal, external, or balanced function |
| Thermal behavior | Influences processing stability and dispersion | Melting or softening range and thermal stability data |
| Compatibility | Reduces the risk of defects or performance loss | Suitability for resin, stabilizer, filler, pigment, and plasticizer system |
| Physical form | Affects feeding, blending, and dosing accuracy | Powder, flake, granule, particle size, and bulk handling behavior |
Before requesting a quotation, I first identify the problem the lubricant must solve. For example, high torque may indicate insufficient lubrication, poor fusion, excessive filler, or unsuitable temperature settings. Die sticking may indicate insufficient external lubrication, but it can also be related to die design, contamination, or an unbalanced additive package.
I record the resin type, K-value where applicable, stabilizer system, filler loading, pigment package, plasticizer content, equipment type, screw design, processing temperature, and production speed. PVC processing temperatures are formulation- and equipment-dependent, but many rigid PVC trials are planned within an approximate 160–200°C processing range. This should be treated as a trial reference rather than a universal operating specification.
For rigid PVC profiles and pipes, I prioritize fusion behavior, die release, surface quality, and dimensional stability. For flexible PVC, I place greater emphasis on compatibility with plasticizers and on possible migration or surface effects. For sheets, panels, and flooring, I also evaluate downstream printing, laminating, coating, and adhesive performance.
You will get efficient and thoughtful service from Shitong.
If the product will contact food, drinking water, medical components, or other regulated applications, the buyer must define the applicable regulatory requirements before selection. I do not recommend assuming compliance from the name G60 alone. The supplier should provide the relevant declarations or documentation only when they are available and applicable to the exact product and market.
I recommend preparing a control formulation and at least two or three G60 dosage levels. Keep the mixing sequence, temperature profile, residence time, screw speed, and sampling method consistent so that the lubricant is the main variable. A short-term screening trial may identify processing differences, but production approval should include repeatability and downstream performance checks.
Useful observations include fusion time, melt pressure, motor load, torque, die buildup, surface gloss, plate-out, color change, and output stability. Where appropriate, I also compare impact strength, tensile performance, dimensional stability, welding behavior, printing, coating, or bonding. A practical conditioning period for comparing specimens may be 24 hours, provided the product and test method require conditioning before evaluation.
The best G60 grade is the one that delivers the required processing balance at a practical addition level. I evaluate whether the lubricant improves release without causing delayed fusion, excessive slip, surface bloom, or poor adhesion. Batch-to-batch consistency is also important because small changes in lubricant activity can affect torque and surface appearance.
For purchasing decisions, I compare technical suitability, packaging, minimum order quantity, production capacity, lead time, storage life, and communication speed. Planning ranges such as 15–30 days for a standard export order may be possible in some supply situations, but actual timing depends on stock, production scheduling, packaging, destination, and shipping conditions. I recommend requesting a written quotation that separates product price, packaging, delivery terms, and any sample or documentation charges.
Packaging should protect the material from moisture, contamination, and handling damage. I also confirm whether the supplier can support repeat orders, retain a consistent specification, provide batch documentation, and discuss formulation adjustments when the application changes. These service factors can be as important as the initial unit price for continuous PVC production.
I also advise against changing the lubricant and several other additives at the same time. If multiple variables change, it becomes difficult to identify the real cause of improvement or failure. A controlled trial matrix produces more useful information than a single pass-or-fail test.
At Shitong, I support B2B buyers by discussing the application before recommending a lubricant grade. Our approach is to review the PVC formulation, processing method, target product, required documentation, packaging preference, and expected order volume. Based on those details, we can help organize a suitable sample evaluation and clarify which performance indicators should be monitored.
We can also support buyers who need an internal and external lubricant solution for PVC rather than a single additive in isolation. If the first trial shows delayed fusion, insufficient release, or surface defects, I recommend reviewing the complete lubrication balance instead of changing dosage blindly. Final suitability should be confirmed by the buyer through representative production testing.
Lubricant G60 is commonly considered for PVC processing where manufacturers need improved flow control, metal release, and surface quality. Its actual behavior depends on its chemical composition, dosage, PVC formulation, and processing conditions, so the grade name alone is not enough for a reliable selection. I recommend starting with a controlled trial, checking both processing and downstream properties, and confirming supply documentation before approval.
If you are comparing Lubricant G60 suppliers or need an internal and external lubricant solution for PVC, contact Shitong with your resin type, product application, current formulation, processing equipment, and target volume. I can help you prepare a practical evaluation plan and provide a quotation based on your actual purchasing requirements.
Contact us to discuss your requirements of Lubricant G60. Our experienced sales team can help you identify the options that best suit your needs.
Comments
Please Join Us to post.
0