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Guangzhou Eric Wei chemical

Hello, everyone! Welcome to Eric Wei Chemical. I'm Jessica

12/05/2026

Japan-Origin Hydrophobic Fumed Silica 🇯🇵

Now available:
Evonik 974 Hydrophobic Fumed Silica

Evonik Industries

✔ Excellent hydrophobicity
✔ Great thickening & anti-sag performance
✔ Stable quality from Japan
✔ Widely used in silicone, coatings, sealants, and adhesives

Original imported source with global shipping available.
Feel free to contact us for TDS, COA, pricing

11/05/2026

🚢 Honeywell 316A just arrived in stock!

Looking for a reliable processing aid for PVC applications?

🔹 Honeywell 316A is widely used in:
• PVC rigid products
• Pipes & fittings
• Profiles
• Foam board applications

It helps improve:
✔ Melt flow
✔ Surface gloss
✔ Processing stability
✔ Production efficiency

Stable quality and trusted performance make it a popular choice in the PVC industry.

📦 Ready stock available now.

Meanwhile, we also provide equivalent alternative products with competitive pricing and stable supply.

Feel free to contact us for:
✅ TDS / COA
✅ Technical support
✅ Alternative recommendations
✅ Latest quotation

08/05/2026

Why Does PVC Turn Yellow During Processing?

PVC yellowing is one of the most common issues in:

* PVC pipes
* Profiles
* Wire & cable compounds
* Transparent PVC products
* Foam boards

Once discoloration appears, it can lead to:
❌ Poor appearance
❌ Customer complaints
❌ Reprocessing costs
❌ Reduced mechanical performance

What causes PVC yellowing?

PVC is highly sensitive to:

* Heat
* UV exposure
* Oxygen
* Excessive shear stress

During degradation, PVC releases HCl, which accelerates polymer chain breakdown and forms conjugated double bonds — the main reason behind yellowing and brittleness.

Common types of PVC yellowing:

✔ Processing yellowing
✔ UV yellowing
✔ Oxidative yellowing
✔ Long-term thermal aging
✔ Formulation-related discoloration

Practical solutions:

✔ Efficient heat stabilizer systems
✔ Antioxidants (AO-1010, etc.)
✔ UV absorbers (UV-531 / UV-327)
✔ Balanced lubrication systems
✔ Better processing temperature control

Proper formulation + controlled processing can significantly improve PVC color stability and long-term performance.

PVCProcessing

07/05/2026

Standard PVC typically shows heat deformation at only 60–80°C, which limits its use in:

* Hot water pipes
* Automotive wire & cable
* Outdoor construction materials
* High-temperature electrical parts

The main issue?

PVC undergoes dehydrochlorination under heat, causing:

* Yellowing
* Brittleness
* Mechanical strength loss

Key Approaches to Improve PVC Heat Resistance:

✔ Advanced heat stabilizer systems
(Ca-Zn / Organotin / Rare-earth stabilizers)

✔ Antioxidant synergy
(1010 + 168 combinations)

✔ Polymer modification
(CPVC / CPE / ABS / MBS blending)

✔ Inorganic fillers for thermal stability
(Kaolin, glass fiber, mica)

✔ Precise processing temperature control

With proper formulation design, PVC systems can achieve:

* HDT above 100°C
* Better long-term aging resistance
* Improved dimensional stability

High-performance PVC is no longer limited to low-temperature applications.

We support customized PVC heat-resistant formulations for:

* Wire & cable
* PVC foam board
* Pipe systems
* Injection molded parts

Feel free to discuss your application with us.

06/05/2026

Struggling with Blooming Issues in Plastics? Here’s What You Should Know 👇

Have you ever seen a white haze or oily layer forming on your plastic products after production?

That’s called blooming — a common issue that can seriously affect product quality.

🔍 Why does blooming happen?
• Overuse of additives
• Poor compatibility with the polymer
• Migration of low molecular weight materials
• Inadequate dispersion during processing

⚠️ What problems can it cause?
• Surface whitening or haze
• Sticky or greasy feel
• Poor printing or coating adhesion

—

💡 How to effectively reduce blooming?

Instead of relying on a single additive, a balanced formulation is key:

✔️ Use EBS wax as a low-migration internal/external lubricant
✔️ Reduce excessive slip agents dosage
✔️ Combine with controlled slip additives (e.g., erucamide) when needed
✔️ Improve dispersion with suitable processing aids (such as PE wax)

👉 This combination helps maintain surface quality while ensuring long-term stability.

—

📩 If you‘re facing similar issues, feel free to reach out.
I’d be happy to suggest tailored solutions based on your formulation.

extrusion materials indust

23/04/2026

3 additives. 3 functions.

🟡 Oleamide → Slip
⚪ EBS → Dispersion
🔵 PE Wax → Lubrication

Wrong choice = production problems
Right choice = stable output

⸻

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01/04/2026

Looking for long-lasting UV stability and superior weathering performance?

BASF Tinuvin 783 is a high-performance light stabilizer system based on HALS technology, designed to provide excellent protection against UV degradation, especially in:
• Polyolefins (PE, PP)
• Agricultural films
• Automotive parts
• Thick and thin molded products

✔ Excellent long-term thermal stability
✔ Synergistic performance with other stabilizers
✔ Suitable for demanding outdoor applications
✔ Improved durability and service life of polymers

If you are working on UV-sensitive applications, Tinuvin 783 can significantly enhance product performance and longevity.

📩 Feel free to contact us for more details or supply information.

03/03/2026

Today is the Lantern Festival（元宵节）, which marks the end of the Chinese Spring Festival. People enjoy rice balls called “Yuan Xiao” or “Tang Yuan” and appreciate colorful lanterns, symbolizing family unity and happiness.

07/08/2025

Real materials. Real quality.We supply genuine chemical raw materials, no fakes, no shortcuts.🌍 Serving global manufacturers – efficiently and honestly.📦 Let’s move your production forward.

08/07/2025

When ten years of global supply chain integration experience and provincial cutting-edge scientific research strength,
the innovation wave of the water-based coating industry is surging!

ERICW Chemical and Hebei Water-Based Coating Industrial Technology Research Institute have in-depth cooperation.

The global precision supply of raw materials aims to support "industry-university-research technology breakthroughs" and promote the full chain upgrade of water-based coatings from basic research and development to industrialization!

Address

Guangzhou

Website

https://www.ericwchem.com/products/defoamer-anti-foaming-agent/

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