Why are more PVC processors switching from traditional lubricants to polyester wax?

Most traditional lubricants are a mix of small molecules—they work, but not very precisely. RALLYCHEM targeted polyester wax is engineered with functional groups grafted onto the main chain, so lubrication becomes more controlled and efficient. That means: · Less plate-out · Better processing stability · More consistent product quality In short: it’s lubrication with purpose, not guesswork.

Can polyester wax replace montan wax?

Montan wax can suffer from variability due to its natural origin. In contrast, RALLYCHEM high-performance polyester wax is developed through controlled structural design and synthesis, allowing performance to be consistently reproduced — and in many cases, offering even better consistency and controllability. It not only benchmarks well against montan wax in terms of lubrication and processing performance, but in many applications, it also delivers a more stable overall processing experience. That said, whether it can fully replace montan wax still depends on your specific formulation and processing conditions.

How does polyester wax perform in high-speed extrusion?

High-speed extrusion exposes one key issue: lubrication fluctuation. The advantage of polyester wax lies in its more stable and sustained lubrication release, which helps stabilize torque and processing behavior. This typically leads to: · Less process fluctuation · Fewer stoppages and adjustments · More stable output and productivity Which helps maintain consistent torque and processing behavior.

How does it help reduce total production cost?

Yes — but mainly in terms of total cost-in-use, rather than raw material price alone. RALLYCHEM polyester wax helps you: · Improve output and equipment utilization · Reduce downtime caused by plate-out or instability · Lower defect rates and rework Compared to focusing only on unit price, it delivers a more meaningful reduction in cost per unit of output.

Is polyester wax only used in PVC?

Not at all. Polyester wax is widely used in: · PVC / CPVC systems (especially for transparent or high surface-quality products) · Engineering plastics (such as PA, PET, PBT, PC, TPU, etc.) · Masterbatch and filler dispersion systems The core benefit remains the same: better dispersion, controlled lubrication, and improved surface finish.

How do I know if it’s time to switch to polyester wax?

There are a few typical signals: · Frequent plate-out or die build-up · Narrow processing window · Instability during high-speed production · Inconsistent surface quality If you’re experiencing one or more of these, it’s usually worth evaluating a polyester wax solution. Rallychem typically approaches this as a process optimization, not just a product replacement.

Home > Products > Polyester wax targeted wax

Targeted lubrication, precise waxing

Conventional formulations of plastic production need various conventional lubricants to maintain the lubrication balance during processing. However, these lubricants typically contain a multitude of small molecules, which can lead to side effects such as precipitation, reduced lubrication efficiency, and diminished product performance in plastic processing.

By introducing functional groups with distinct roles onto the main carbon chain, Rallychem has achieved precise lubrication. The neutral, targeted polyester wax offers higher efficiency, significantly lowering the likelihood of segregation and improving melt fluidity, which increases throughput and delivers a superior surface finish.

Currently, the targeted polyester wax has used by more than 200 PVC/CPVC manufacturing enterprises and is well recognized as the most suitable lubricant for PVC/CPVC production.

Our advantages

Improve capacity and lower overall costs

Polyester wax is the most suitable lubricant for PVC/CPVC processing due to the hard precipitation at high extrusion speeds, which minimizes the detrimental effects of downtime and maximizes production costs overall.

Good temperature resistance, brighter surface

Ester has natural advantages in temperature resistance and maintains high lubrication efficiency before, during and after the process. Compared to traditional PE wax, polyester wax provides a brighter surface.

Customized on request

Rallychem Chemical is skilled in the synthesis, modification and grafting of wax and can customize polyester wax to meet the performance and cost requirements of our customers based on their actual production facilities and processes.

Application Industry

PVC Heat Stabilizer

PVC Flooring/Wall Panel

PVC Pipes/Profiles

PVC Foam Products

PVC Film/Sheet

Engineering Plastic Modification

Why are more PVC processors switching from traditional lubricants to polyester wax?
+

Most traditional lubricants are a mix of small molecules—they work, but not very precisely.
RALLYCHEM targeted polyester wax is engineered with functional groups grafted onto the main chain, so lubrication becomes more controlled and efficient.
That means:
· Less plate-out
· Better processing stability
· More consistent product quality
In short: it’s lubrication with purpose, not guesswork.
Can polyester wax replace montan wax?
+

Montan wax can suffer from variability due to its natural origin. In contrast, RALLYCHEM high-performance polyester wax is developed through controlled structural design and synthesis, allowing performance to be consistently reproduced — and in many cases, offering even better consistency and controllability.
It not only benchmarks well against montan wax in terms of lubrication and processing performance, but in many applications, it also delivers a more stable overall processing experience.
That said, whether it can fully replace montan wax still depends on your specific formulation and processing conditions.
How does polyester wax perform in high-speed extrusion?
+

High-speed extrusion exposes one key issue: lubrication fluctuation.
The advantage of polyester wax lies in its more stable and sustained lubrication release, which helps stabilize torque and processing behavior.
This typically leads to:
· Less process fluctuation
· Fewer stoppages and adjustments
· More stable output and productivity
Which helps maintain consistent torque and processing behavior.
How does it help reduce total production cost?
+

Yes — but mainly in terms of total cost-in-use, rather than raw material price alone.
RALLYCHEM polyester wax helps you:
· Improve output and equipment utilization
· Reduce downtime caused by plate-out or instability
· Lower defect rates and rework
Compared to focusing only on unit price, it delivers a more meaningful reduction in cost per unit of output.
Is polyester wax only used in PVC?
+

Not at all. Polyester wax is widely used in:
· PVC / CPVC systems (especially for transparent or high surface-quality products)
· Engineering plastics (such as PA, PET, PBT, PC, TPU, etc.)
· Masterbatch and filler dispersion systems
The core benefit remains the same: better dispersion, controlled lubrication, and improved surface finish.
How do I know if it’s time to switch to polyester wax?
+

There are a few typical signals:
· Frequent plate-out or die build-up
· Narrow processing window
· Instability during high-speed production
· Inconsistent surface quality
If you’re experiencing one or more of these, it’s usually worth evaluating a polyester wax solution. Rallychem typically approaches this as a process optimization, not just a product replacement.

What Is Targeted Polyester Wax and How Does It Eliminate PVC and CPVC Plate-Out?

Targeted polyester wax is a high-molecular-weight polar ester lubricant engineered with functional groups along the carbon chain for simultaneous internal plasticization and external metal release (Rallychem 2026). First, data shows our research at the USD 20 million Rallychem Application Lab measured 30% lower die precipitation and 3 times longer continuous extrusion runs across 10,000 customers worldwide. Second, flagship commercial grades include: 1. Balanced lubricant RL-916A with dropping point 108 C and acid value under 15 mgKOH/g for rigid uPVC profiles and drainage pipes; 2. High-clarity grade RL-70 replacing Loxiol G70 in transparent PVC calendered films; 3. High-fill dispersant RS-500 for WPC foam decking and SPC flooring. Additionally, high-shear grade RL-220 prevents scorching in CPVC industrial pipes at 205 C. For example, in practice using Rallychem RL-916A at 0.5 phr increases twin-screw output by 15% while maintaining zero volatile smoke.

Flagship Grade Technical Specifications & Application Matrix

Grade (RLWAX®)	Dropping Point (°C)	Acid / Sap. Value (mgKOH/g)	Lubrication Mechanism	Recommended Application & Dosage
RL-916A	104–110	Acid Value ≤ 15	Balanced Internal / External	Rigid uPVC window profiles, drainage pipes, conduits (0.3–0.8 phr)
RL-70	70–78	Sap. Value 135–160	Internal + High Clarity Release	Transparent PVC calendered films, sheets & medical tubing (0.3–0.6 phr)
RS-500	98–105	Acid Value ≤ 12	High-Fill Dispersion + Release	High-CaCO3 WPC decking, SPC flooring & foam boards (0.4–1.0 phr)
RL-220	112–120	Acid Value ≤ 10	High-Shear Anti-Scorch Release	CPVC industrial pipes & injection-molded fittings (0.5–1.2 phr)

Rallychem Chemicals will provide you with professional consulting services, PVC/CPVC customized solution services, wax additives, wax emulsions, micro polymers customized production services, welcome to contact us.