Why PVC Film & SPC/LVT Flooring Manufacturers PVC Stabilizers

1. PVC demand in Southeast Asia is growing – and stabilizers are under the spotlight

Southeast Asia and South Asia remain some of the most dynamic PVC markets in the world, driven by construction, infrastructure and consumer goods.

In Vietnam, Indonesia, India and Bangladesh, PVC and related materials are widely used for:

SPC and LVT flooring for residential and commercial buildings
PVC blister films for pharmaceutical tablets and capsules
Semi-rigid PVC thermoforming films for food and electronics packaging
Soft clear PVC films for strip curtains, table covers and general industrial use

As converters in these countries increase production, two questions always come up:

How to control total formulation cost?
How to meet customer and regulatory pressure for non-toxic, lead-free PVC?

That is why more and more factories are reviewing their PVC stabilizer systems.

2. From lead to Ca-Zn and Methyl Tin – why converters are changing

For many years, lead-based stabilizers were the standard in many PVC factories. Today, especially for export-oriented products, we see a clear shift towards:

Calcium-Zinc (Ca-Zn) stabilizers
Modern Methyl Tin stabilizers for crystal-clear rigid PVC

Key reasons for this shift:

Lead-free and RoHS/REACH compliance
- Export customers and international brands are asking for lead-free PVC, especially in building materials, flooring and packaging.
- Ca-Zn and Methyl Tin stabilizers help processors meet RoHS, REACH and other global regulations more easily.
Better factory image & worker safety
- A cleaner stabilizer system improves workshop environment, odor and dust exposure, which is important for long-term operations.
Higher performance for high-value applications
- Clear PVC blister films, semi-rigid PVC films, soft clear PVC and SPC/LVT flooring layers require:
  - High initial whiteness and gloss (where visible)
  - Long-term stability in hot and humid climates
  - Low plate-out and low odor
- Well-designed Ca-Zn and Methyl Tin stabilizers can meet these high standards.

3. Key PVC applications in Vietnam, Indonesia, India and Bangladesh

At WANSYN Industry (Zhejiang, China), our PVC stabilizers are designed for several core applications that are very common in Southeast Asia and South Asia.

3.1 Pharmaceutical PVC blister film and high-clarity rigid films

Typical customers:

PVC blister film manufacturers supplying pharma & healthcare
Rigid and semi-rigid PVC film producers for high-end packaging

Why stabilizer quality is critical:

Very strict requirements on clarity and yellowness index (YI)
No heavy metals and low migration for safer pharmaceutical packaging
Stable color even when stored in hot warehouses and tropical climates

Recommended stabilizer system:

Methyl Tin stabilizers for top-level clarity and long dynamic heat stability
Carefully matched lubricant package to keep calender roll surfaces clean and reduce plate-out

3.2 Semi-rigid PVC films for thermoforming and packaging

Typical products:

Semi-rigid and rigid PVC thermoforming films for:
- Food trays
- Electronics blister packaging
- Gift and cosmetic boxes

Challenges we often see in the region:

High ambient temperatures in Vietnam, Indonesia, India and Bangladesh
Risk of yellowing and plate-out when lines are running fast
Need for consistent thickness, color and gloss to match brand standards

What a good Ca-Zn stabilizer should bring:

A wide processing window for calendering and thermoforming
Clean metal surfaces and reduced die-clean frequency
Stable color over repeated heating cycles

3.3 Soft clear PVC films for strip curtains and flexible applications

Typical products:

Soft clear PVC strip curtains and door curtains
Transparent PVC tablecloth films
General soft PVC films for toys, covers and industrial use

Common pain points from factories:

“Film looks clear at the beginning but turns yellow after storage.”
“Odor is too strong for indoor use.”
“We see blooming or fogging on the film surface.”

How stabilizers can solve these issues:

A properly designed Ca-Zn stabilizer system with balanced internal/external lubrication reduces blooming and plate-out
Optimized raw materials and stabilizer recipe help control odor and migration
Improved long-term stability for films used in open workshops and hot environments

3.4 SPC / LVT flooring – rigid core and PVC layers

SPC (Stone Plastic Composite) and LVT (Luxury Vinyl Tile) flooring are gaining market share in Vietnam, Indonesia, India and Bangladesh because they are:

Waterproof and easy to clean
Dimensionally stable and suitable for modern housing projects
Friendly to fast installation and renovation projects

Although SPC cores contain a high percentage of mineral fillers, PVC stabilizers still play an important role in:

The rigid PVC core layer (for some SPC formulations)
The PVC wear layer and decorative layer in LVT and SPC products
Click profile extrusion and edge stability

For these applications, the stabilizer system must:

Provide good early color and long-term stability during extrusion and lamination
Work well with high filler loading and wood-look / stone-look printing films
Maintain performance in hot, humid climates common in Southeast Asia and South Asia

A dedicated Ca-Zn stabilizer for SPC/LVT flooring can help processors:

Run lines faster with fewer plate-out issues
Reduce yellowing in visible PVC layers
Improve dimensional stability and reduce complaints in the field

4. What PVC converters in Southeast Asia usually ask us

When we talk with PVC converters from Vietnam, Indonesia, India and Bangladesh, the questions are very similar:

“Can you match our current stabilizer and improve cost-performance?”
“Can you help us move from lead to Ca-Zn without production problems?”
“Can you test our current stabilizer and PVC formulation before we change?”

Our answer is a 3-step technical service that we offer to serious partners:

Free testing of your current stabilizer and PVC system
- Lab analysis of your PVC resin, current stabilizer and main additives
- Torque, Congo-red, plate-out tendency, YI, etc.
Free formula design and optimization
- Recommend suitable Ca-Zn or Methyl Tin stabilizer grades for your specific product:
  - PVC blister film
  - Semi-rigid thermoforming film
  - Soft clear PVC film
  - SPC/LVT flooring layers and profiles
- Suggest a starting dosage and processing window.
Trial production and on-line support
- Support your team during lab trials and production trials
- Fine-tune for local conditions: machine type, workshop temperature, local fillers and lubricants

5. Why PVC converters in Vietnam, Indonesia, India and Bangladesh work with WANSYN Industry

WANSYN Industry, based in Zhejiang, China, focuses on:

Powder Ca-Zn stabilizers for:
- Rigid and semi-rigid PVC films
- Soft clear PVC films
- SPC/LVT flooring layers and certain building products
Liquid Methyl Tin stabilizers for:
- Clear rigid PVC films and sheets
- High-clarity applications requiring strong heat stability

What you get when working with us:

Lead-free stabilizer solutions engineered for Asian climates
Stable quality and fast delivery from our Zhejiang factory
Free lab testing and formula design before you make a big change
Flexible cooperation for Vietnam, Indonesia, India and Bangladesh – whether you are a PVC film producer, SPC/LVT flooring factory or a trading company serving these markets

6. Ready to compare your PVC stabilizer with a new solution?

If you produce PVC blister films, semi-rigid films, soft clear films or SPC/LVT flooring in Vietnam, Indonesia, India or Bangladesh, and you are:

Looking for a second source of PVC stabilizers
Planning to move from lead-based systems to Ca-Zn or Methyl Tin
Interested in a cost-down project without losing stability and color

we invite you to start with a small sample and lab project.

WANSYN Industry – Eco-Friendly PVC Stabilizers & Functional Plastic Sheets
📍 Zhejiang, China
🌐 Website: www.wxchemgroup.com
📧 Email: info@wxchemgroup.com
📞 Mobile / WhatsApp: +86 159 5847 3100