Rotational masterbatches(Roto-molding molding or rotomolding) 
are highly concentrated pigments or functional additive particles specially designed for the roto-molding process.
Standard Polymer has developed customized masterbatch products with high thermal stability and high dispersion for the roto-molding process. They are widely used in common roto-molding raw materials such as LLDPE and HDPE. Our masterbatches can still maintain excellent color uniformity and performance stability after long-term heating and melting cycles.
| High thermal stability | the formula can withstand 270-300°C high temperature heating cycle without fading or decomposition |
| Excellent dispersion | uniform mixing, no spots or lumps, ensuring color consistency in multiple batches |
| Low volatility | no foaming or precipitation, improving surface quality and mechanical properties |
| Strong carrier compatibility | polyethylene-based carrier, compatible with HDPE/LLDPE substrates |
| Customized functional additions | can be compounded with UV stabilizers, flame retardants, antibacterial agents, anti-static and other functional masterbatches |
| Item | Parameter range |
| Applicable resin | LLDPE/HDPE |
| Appearance | Granules |
| Pigment type | Inorganic/organic (customizable) |
| Recommended adding ratio | 1.5%-4% |
| Thermal stability | ≥ 300°C (no discoloration/smoke) |
| Dispersion grade (score) | 4-5 (ISO standard) |
| Regulations | Can pass ROHS, FDA and other regulations, and can provide declarations |
Note: The above are general rotational molding masterbatch parameters, and the specific formula can be customized according to customer application requirements.
| Application | Examples |
| Liquid Storage | Large PE water tanks; Septic tanks; Fuel and chemical storage tanks |
| Traffic & Safety Products | Traffic barricades; Road barriers; Safety guardrails |
| Storage & Containers | Toolboxes; Waste bins; Storage cabinets |
| Outdoor & Leisure Equipment | Playground equipment (slides, climbing structures, etc.); Kayaks and small boats; Outdoor chairs |
Standard Polymer focuses on functional masterbatches and customized color matching solutions. We have:
✅Professional technical R&D team
✅Formulas and raw materials from the United States
✅Professional and advanced production equipment and testing equipment
✅Complete color difference control and quality testing system
✅Complete OEM/ODM service system
We are committed to providing customers with "stable, efficient and environmentally friendly" masterbatches and customized masterbatch solutions to help end products increase added value and market competitiveness.
Welcome to contact us for free samples, technical solutions or customized color matching support!
