WSD PA-20T Transparent ACR Processing Aid

‌Brand‌: WSD CHEMICAL
‌Product Name‌: WSD PA-20T ACR Processing Aid for High Transparency PVC

Product Introduction

WSD PA-20T is a universal transparent grade acrylic processing aid developed with reference to classic PA-20, P551-A and ZB-20 performance standards. Adopting advanced core-shell polymerization technology and strictly controlled narrow molecular weight distribution, this product provides excellent plasticization promotion and melt modification performance, while its refractive index is highly matched with PVC resin. It almost does not affect the light transmittance of transparent products, and can effectively solve common production problems such as insufficient transparency, poor fluidity, flow marks and crystal points in high-end transparent PVC processing.

Typical Technical Specifications

1.Efficiently promotes uniform plasticization, significantly shortens fusion time and reduces processing torque

2.Improves melt strength and ductility, effectively eliminates melt fracture and flow marks

3.Good compatibility with transparent calcium zinc stabilizers, organotin stabilizers and various lubricants

4.No negative effect on product color stability, avoids yellowing tendency during long processing cycles

5.Universal dosage range, easy to replace similar imported grades directly without major formulation adjustment

Main Application Areas

‌Transparent PVC Medical & Food Packaging‌
Suitable for high-transparency PVC sheets for blister packaging, medical transparent hard sheets and food contact transparent films, ensuring no transparency loss and meeting strict safety standards.

‌Transparent PVC Sheets & Calendered Products‌
Optimizes calendering process stability, improves sheet surface smoothness, and effectively reduces crystal points and white spots.

‌Transparent PVC Granules & Compounds‌
Stabilizes granulation process, improves melt fluidity, and guarantees consistent transparency of each batch of transparent PVC compounds.

‌Transparent PVC Pipes & Fittings‌
Promotes uniform extrusion, improves pipe wall transparency and surface gloss, and reduces internal stress defects.

‌Transparent PVC Injection Molding Parts‌
Improves melt filling performance, ensures uniform transparency of complex-shaped transparent fittings, and shortens injection cycle time.

‌High-end Transparent PVC Decorative Panels‌
Enhances product surface finish, maintains long-term clear appearance, and avoids surface fogging after long-term use.

Recommended Usage

Standard addition dosage: 1.0–2.0 phr (per 100 parts of PVC resin)

Suggested to add together with PVC resin and stabilizers in the early stage of high-speed mixing to give full play to plasticization promotion effect

It can be used in combination with WSD CHEMICAL G60 internal lubricant, G-70 external lubricant, WSD-6 oxidized wax and transparent stabilizer system to achieve optimal processing performance

Packaging & Storage

Standard packaging: 25kg moisture-proof kraft paper bag,12.5tons/20’GP

Store in dry, cool and ventilated indoor warehouse, storage temperature below 40 °C,Away from heat sources, open flames and strong oxidizing agents

Shelf life is 18 months under recommended storage conditions

WSD CHEMICAL Supply Advantage

With more than 20 years of deep experience in PVC processing and formulation, WSD CHEMICAL supplies WSD PA-20T transparent ACR processing aid comparable to classic PA-20, P551-A and ZB-20 grades. We provide global customers with complete COA, MSDS documents and professional technical support, helping you realize stable substitution of similar imported products, reduce comprehensive cost and improve transparent product yield.

Frequently Asked Questions (FAQ)

Q1: What is Transparent ACR Processing Aid?
A: Transparent ACR Processing Aid is a specially optimized acrylic copolymer additive designed for transparent PVC formulations. It significantly improves melt flow and plasticization performance without compromising the original transparency of the product.

Q2: What core properties does it offer for transparent PVC processing?
A: It effectively shortens plasticization time, enhances melt uniformity, eliminates surface flow marks and fish eyes, and will not introduce extra haze or yellow tint, keeping the light transmittance of finished products at a high level.

Q3: What typical applications is it suitable for?
A: It is widely used in transparent PVC sheets, food-grade transparent packaging films, transparent pipe fittings, blister packaging materials, and medical transparent PVC parts that require both processing performance and high clarity.

Q4: What is the recommended addition dosage in conventional transparent PVC formulations?
A: The standard recommended dosage ranges from 0.8 phr to 2.5 phr. The specific amount can be adjusted according to your equipment configuration, processing method and the required surface gloss standard.

Q5: How does it perform in compatibility with other transparent PVC additives?
A: It shows excellent compatibility with PVC resin, transparent calcium-zinc stabilizers, non-precipitating lubricants and other transparent-grade additives, and will not cause crystal points, precipitation or transparency degradation under normal processing conditions.

Q6: What are the key technical specifications of this product?
A: It appears as a white fine powder, with volatile content ≤1.0%, apparent density 0.35–0.55 g/cm³, and 40-mesh sieve residue ≤0.1%, which can be well dispersed in transparent PVC systems without introducing visible impurities.

Q7: What processing tips can help maximize its performance?
A: It is recommended to add it at the initial stage of high-speed mixing, control the final mixing temperature at 105–115°C to ensure uniform distribution. This can effectively reduce melt temperature fluctuation and avoid local thermal degradation that affects transparency.

Q8: What advantages does it have over ordinary general-purpose ACR processing aids?
A: It adopts a special molecular weight design and purification process, with extremely low impurity content and no yellowing tendency. It balances plasticization efficiency and haze control far better than ordinary ACR, making it more suitable for high-end transparent PVC products.