TS-7401 Ca/Zn Stabilizer for PVC Drainage Pipes

Powder Form · Calcium/Zinc System
Optimized for Stable Extrusion and Long-Life Drainage Applications

3-3.6 PHR

PVC drainage pipes are built for a quiet life of hard work. They don’t seek attention; they demand reliability. Buried underground or hidden inside structures, they must endure heat during processing, pressure during installation, and decades of service without complaint. TS-7401 is formulated precisely for that mission.

TS-7401 is a calcium-zinc (Ca/Zn) stabilizer in powder form, developed specifically for rigid PVC drainage pipe applications. It delivers consistent thermal stability, controlled processing behavior, and dependable mechanical performance—without relying on heavy metals or excessive filler content. The result is a stabilizer that supports efficient production today and structural integrity for years to come.

Purpose-Built for Drainage Pipe Extrusion

Drainage pipes operate under different expectations than pressure pipes or decorative profiles. What matters most is long-term stability, uniform structure, and predictable processing. TS-7401 is engineered to meet those expectations without overcomplicating the formulation.

It supports:

• Smooth, stable extrusion on standard pipe lines

• Uniform wall thickness and dimensional consistency

• Reliable fusion across thick and thin sections

• Reduced risk of thermal degradation during long runs

Rather than pushing extremes, TS-7401 focuses on process stability—the kind manufacturers trust when production must run continuously and quietly.

Balanced Thermal Stabilization

PVC begins to degrade the moment heat is applied. If not controlled, that degradation accelerates, releasing HCl, darkening the melt, weakening the polymer chain, and compromising the final pipe. TS-7401 interrupts this cycle early and effectively.

Its Ca/Zn stabilizing system:

• Neutralizes liberated HCl during processing

• Delays the onset of thermal degradation

• Maintains consistent color and appearance

• Protects PVC molecular structure throughout extrusion

This balanced stabilization gives processors a forgiving processing window, reducing start-up waste and minimizing sensitivity to temperature fluctuations.

Low-Stress Processing Behavior

TS-7401 is designed to work with the extruder, not against it. Its powder form disperses evenly in the compound, ensuring consistent stabilization across the entire melt.

Processing advantages include:

• Stable torque and melt pressure

• Predictable die behavior

• Reduced risk of burning or streaking

• Compatibility with standard lubrication systems

This makes TS-7401 suitable for both new formulations and existing drainage pipe recipes with minimal adjustment.

Mechanical Integrity for Long Service Life

Drainage pipes face continuous environmental stress—soil pressure, temperature variation, moisture exposure, and slow chemical interaction with wastewater. TS-7401 helps preserve the PVC matrix against these forces.

Pipes stabilized with TS-7401 exhibit:

• Good impact resistance

• Stable tensile strength

• Resistance to heat aging

• Structural reliability over extended periods

This makes TS-7401 well suited for:

• Underground drainage systems

• Sewage and wastewater pipelines

• Rainwater drainage networks

• Residential, commercial, and municipal infrastructure

Clean, Functional Surface Quality

While drainage pipes are not decorative products, surface quality still matters. Rough surfaces increase friction, trap debris, and indicate instability during extrusion. TS-7401 promotes:

• Smooth internal and external pipe surfaces

• Uniform appearance without burn marks

• Consistent color across production batches

The result is a pipe that installs easily, performs reliably, and meets industry quality expectations.

Environmentally Responsible Ca/Zn System

TS-7401 is completely lead-free, aligning with modern environmental and regulatory requirements. Its calcium-zinc chemistry offers a responsible alternative to traditional heavy-metal stabilizers while maintaining the durability expected from drainage pipe systems.

Key compliance benefits:

• RoHS compliant

• REACH aligned

• Suitable for infrastructure and construction markets

• Safe for long-term use in building drainage systems

This makes TS-7401 suitable for both domestic use and export markets with strict environmental regulations.

Compatibility and Formulation Flexibility

TS-7401 integrates smoothly into rigid PVC formulations and is compatible with commonly used additives, including:

• Calcium carbonate fillers

• Processing aids

• Internal and external lubricants

• Impact modifiers

• Pigments and TiO₂

Its formulation allows manufacturers to maintain formulation flexibility while achieving consistent performance.

Recommended Use

TS-7401 is typically used in standard PVC drainage pipe formulations, with dosage adjusted according to pipe size, wall thickness, filler loading, and processing conditions.

Proper high-speed mixing is recommended to ensure uniform dispersion before extrusion. Once incorporated, TS-7401 delivers stable performance across long production cycles.

Packaging and Storage

TS-7401 is supplied in moisture-resistant packaging to protect flowability and stabilizing efficiency.

Storage guidelines:

• Store in a cool, dry place

• Protect from direct sunlight

• Avoid moisture exposure

• Follow FIFO inventory practices

Under proper storage conditions, TS-7401 maintains consistent quality throughout its shelf life.

Why Choose TS-7401

Because drainage pipes demand discipline, not drama.

TS-7401 offers:

• Reliable Ca/Zn thermal stabilization

• Stable, predictable processing behavior

• Long-term mechanical integrity

• Environmental compliance

• Proven suitability for drainage pipe applications

It is a stabilizer designed for manufacturers who value consistency, durability, and quiet performance—pipes that do their job flawlessly, long after the extrusion line has gone silent.