Overview
PS Marble Grain Color Masterbatch is a pre-dispersed pigment concentrate designed for polystyrene resins. It enables efficient production of marble-patterned plastic products without requiring complex multi-step coloring processes. The masterbatch typically contains 20-40% specialized pigments and additives in a PS carrier resin. This additive is favored for its ability to simulate high-end marble aesthetics at a fraction of the cost of natural stone. Manufacturers value its consistency in pattern reproduction across production batches, which is critical for branded product lines. The technology originated in Europe in the 1990s and has become particularly popular in Asian markets for decorative applications.
Physical and Chemical Properties
The masterbatch exhibits excellent thermal stability, maintaining color integrity at standard PS processing temperatures (180-220°C). Its formulation ensures uniform pigment dispersion without clogging injection molding equipment or extrusion dies. The marble effect is achieved through controlled pigment distribution rather than simple mixing. Key technical parameters include melt flow rate (MFR) matching base PS resin (typically 10-25 g/10min) and ash content below 0.5%. The product shows good UV resistance for indoor applications, though outdoor use may require additional stabilizers. Compatibility tests should be conducted when blending with recycled PS materials.
Main Applications
Primary applications include decorative wall panels for interior design, where it provides cost-effective marble alternatives for hotels and commercial spaces. The masterbatch is also widely used in cosmetic packaging (compacts, jars) and high-end disposable tableware that requires premium visual appeal. Industrial applications include electrical component housings where the marble pattern helps mask flow lines. Recent innovations include combining with metallic effects for luxury automotive interior trim components. The typical dosage ranges from 2-8% depending on desired pattern intensity and base resin opacity.
Safety and Storage
While generally classified as non-hazardous, the masterbatch may release vapors during high-temperature processing. Facilities should ensure proper exhaust ventilation, particularly for enclosed injection molding operations. Personal protective equipment including dust masks is recommended during manual handling. Storage stability is typically 12 months when kept in original moisture-resistant packaging. Opened bags should be resealed or transferred to airtight containers to prevent moisture absorption, which can cause processing defects. Bulk storage areas should maintain relative humidity below 60% to prevent caking.
B2B Procurement Guide
When sourcing PS marble masterbatch, verify the supplier's technical capability to provide customized color formulations. Reputable manufacturers should provide technical datasheets with full pigment disclosure and regulatory compliance documentation (REACH, RoHS). For large-volume orders (5+ metric tons), negotiate pricing based on annual commitment volumes. Quality control parameters should include batch-to-batch color consistency testing and metal content analysis. Consider suppliers offering just-in-time delivery programs to minimize inventory costs. Sample evaluation should include actual production trials under standard operating conditions.
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