At Rompa Group, we have extensive experience in precision-engineered, multi-material parts that require 2K, 3K, 4K or other multi-shot injection molding. This process allows us to combine two or more plastics into a single, high-performance part - unlocking new possibilities in functionality, efficiency, and design.
Rompa’s 2K and multi-shot injection moulding capabilities enable seamless integration of hard and soft plastics, multiple colors, or materials with different shrinkage profiles - all in a single mold cycle. From ergonomic grips on a hard plastic toothbrush or razor, to waterproof seals and green/red visual indicators in automotive components, we help customers reduce assembly steps and elevate product performance.
2K and multi-shot molding are ideal for complex parts in consumer electronics, medical devices, automotive systems, and beyond. Rompa manufactures components like sealed oral care grips, anti-slip handles, indicator panels, and dual-color switch components. We combine technical precision with high-volume scalability. Our approach is always tailored to the specific part function, aesthetic goals, and end-use conditions. And because Rompa offers in-house assembly, decoration, packaging, and logistics, our 2K and multi-shot molded components can optionally be delivered as fully finished, ready-for-market products if you want to streamline your entire supply chain.
We produce multi-shot components at our factories in the Czech Republic, China, and Mexico, with engineering support and quality systems aligned to IATF 16949 and ISO 13485 standards. Each site applies inline inspections, optical measurement, and statistical process control (SPC) to ensure zero-defect results. We help customers select the right material combinations, injection sequence, and tooling layout for every application.
Whether you're wondering which materials bond best, how to avoid shrinkage issues, or whether 2K molding is more efficient than manual assembly, you can ask Rompa Genius, our AI expert on plastics. Or simply get in touch with our team to explore your options.