Calcium-Zinc Composite Stabilizer CZ-503 (for Foamed Boards)

1. Scope of Application

Suitable for extruded foamed board products such as PVC foamed boards, Celuka foamed boards, advertising boards, decorative sheets and thick boards.

2. Technical Specifications

3. Application Features

1. Balanced stabilization and lubrication for foaming systems, gentle plasticization, stable foaming ratio, fine and uniform cells, low risk of cell rupture and collapse.
2. Excellent initial color retention and good whiteness stability, smooth and fine board surface, reducing defects such as pinholes, streaks and pits.
3. Good synergy with foaming agents, ACR foaming processing aids, CPE and calcium carbonate fillers, compatible with high-filled formulations to cut production cost.
4. Low plate-out, less tendency to stick to rollers and molds; less deposit accumulation during long continuous production, fewer cleaning stops.
5. Lead-free and cadmium-free, compliant with RoHS and REACH, suitable for indoor decorative boards for export.

4. Recommended Dosage

3.2 – 4.2 PHR (adjust according to filler loading, foaming ratio and machine conditions).

5. Packaging & Storage

25 kg per bag; store in dry, cool and ventilated place at ambient temperature, keep away from moisture and direct sunlight.