PVC Edge Banding Composition
Jun 18, 2026
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Standard PVC Edge Banding Composition
The chemical breakdown of a standard rigid PVC edge banding formulation is outlined below:
| Chemical Ingredient | Percentage | Primary Function(s) |
|---|---|---|
| Polyvinyl Chloride (C2H3Cl)n | (90-95%) | Base resin that provides structural strength, durability, and moisture resistance. |
| Calcium Carbonate (CaCO3) | (5-15%) | Acts as a filler to increase rigidity and opacity. Low-grade formulas with excess \(CaCO_{3}\) may "whiten" when bent. |
| Plasticizers | (4-20%) | Additives like phthalates (or epoxidized soybean oil for eco-friendly variants) used to provide flexibility. |
| Stabilizers (e.g., Calcium-Zinc) | (1.5-10%) | Heat stabilizers to prevent degradation during extrusion and ensure UV resistance. |
| Processing Aids & Acrylic Modifiers | (2-15%) | Additives that improve melt flow during manufacturing and impact resistance. |
| Masterbatch / Pigments | (1-2%) | Colorants and metallic effects to match specific board finishes. |
| Lubricants (Internal/External) | (0.5-3.5%) | Prevent the PVC from sticking to extrusion machinery; regulates surface finish. |
| Primer / UV Absorber | (0.5-1.5%) | Primer layers permit optimal bonding to the furniture board. |