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Product Details:
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| K Value: | 62 | Average Polymerization Degree: | 865 |
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| Volatile Matter: | 0.26% | Residual VCM: | 3.5 Ppm |
| Brookfield Viscosity: | 4.8 (10⁻³Pa*s) | Impurity Particles: | 21 Pcs |
Zhongtai WP62GP PVC Paste Resin
Certificate of Analysis
1. Product Introduction
WP62GP is low K-value general-purpose paste PVC resin with moderate average polymerization degree. It features stable low plastisol viscosity, low paste thickening rate within 24 hours, low volatile content and low residual VCM. With fine particle size, excellent plasticizer absorption and uniform paste forming performance, it is widely used for general soft plastisol products requiring low viscosity and stable storage.
2. Quality Inspection Test Results
| Inspection Item | Standard Specification | Test Result |
| Average Degree of Polymerization | 750~980 | 865 |
| K Value | 59~65 | 62 |
| Brookfield Viscosity (DOP 60phr, 50r/min, 10⁻³Pa·s) | 3.0 ~ 7.0 | 4.8 |
| Impurity Particles (pcs) | ≤40 | 21 |
| Volatile Matter (Including Moisture, %) | ≤0.50 | 0.26 |
| Sieve Residue (0.25mm mesh, %) | ≤0.2 | 0.08 |
| Sieve Residue (0.063mm mesh, %) | ≤3.0 | 1.1 |
| Residual VCM (ppm) | ≤10 | 3.5 |
| Whiteness (160°C, 10min, %) | ≥76 | 79.2 |
| Scraper Fineness (μm) | ≤100 | 68 |
| pH Value of Water Extract | ≤9.0 | 7.0 |
| Mass Fraction of Alcohol Extract (%) | ≤4.0 | 2.1 |
| 24h Paste Thickening Rate (%) | ≤100 | 56 |
3. Core Product Advantages
• Low K-value and moderate polymerization degree, low initial plastisol viscosity, easy stirring and coating construction
• Low 24h paste thickening rate, stable viscosity during long-term storage without sharp viscosity rise
• Fine particle size with low sieve residue, good plasticizer absorption and uniform paste without coarse particles
• Low impurity particles and high whiteness, finished products with smooth surface and clean white tone
• Ultra-low residual VCM, meets environmental requirements for daily-use and toy products
• Controlled alcohol extract content, effectively reduce blooming and surface migration of finished goods
4. Typical Application Fields
• General artificial leather, thin-layer PVC dipping products
• Plastic wallpaper, soft PVC coating paste
• PVC toys, disposable protective gloves
• Low-viscosity plastisol printing ink, craft dipping products
5. Packaging & Storage
Packaging: 20kg composite paper bag
Storage Requirements: Store in dry, ventilated warehouse, avoid sunlight and moisture; seal tightly after opening to prevent agglomeration and viscosity change.
6. Quality Statement
All test indicators are official factory lab inspection data and comply with GB/T15592-2008 national standard. Actual plastisol viscosity and thickening performance are affected by plasticizer type, filler dosage and storage temperature. Small trial mixing test is recommended before mass production.
Contact Person: Louis Liu
Tel: 13675620692
Fax: 86-532-89088579
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