Rosti
Injection Blow Molding
Rosti delivers high‑precision Injection Blow Molding solutions for lightweight, durable, and dimensionally stable plastic packaging and components.
Our IBM process combines injection and blow molding in a fully integrated, repeatable system that ensures excellent neck accuracy, uniform wall thickness, and premium surface quality. Serving markets including personal care, food and beverage, medical, and household products, we provide scalable IBM production supported by in-house tooling expertise, automated systems, and global manufacturing capabilities.
Tony Austin
European Technical Director
Why injection blow molding?
When working on any project, cost is an important factor. But it becomes especially critical for large-scale and industrial applications. Injection blow molding is a highly customizable process, making it easy to scale based on the customer’s needs.
At Rosti, we take pride in our ability to manufacture parts efficiently, with significant cost savings and minimal waste. While injection blow molding may not be as fast as traditional blow molding, it offers quality advantages in the finished product. This process is especially effective at producing parts with thicker walls and transparent items, like reusable drink cups. While the output volume and speed may not be exceptionally high, the process ensures high-quality parts and can be run continuously for consistent manufacturing.
Advantages of Thicker Walls and Clear Finishes
At Rosti, our commitment to injection blow molding allows us to provide reliable and flexible solutions, pushing the boundaries of its applications beyond typical expectations. This dedication to quality and innovation is what truly sets us apart.
Rosti’s advancements in injection blow molding include the ability to create products with different thicknesses, experience with a wide range of materials and resins, and more. We have developed mass production for glass-like, thick-walled transparent plastics used in reusable water bottles and lighting products. By carefully controlling the blowing of partially hardened plastic, we can manufacture attractive products in various colors and degrees of transparency.
Our injection blow molding capabilities are continuously growing, and we help you bring your projects to the next level.
Shifting Toward Sustainability: A Cup for Life
As major brands move toward the concept of a “cup for life,” Rosti is here to support this evolution. A cup for life lets reusable cups be used for an extended time, instead of being disposed of after just one use. Rosti’s injection blow molding expertise is essential in making this transition possible.
A Rosti-manufactured cup for life is built to last; it can endure up to 1,000 washes. Each cup comes with an RFID tag so you can track the number of washes. As single-use plastic regulations are being enacted around the world, initiatives like the cup for life offer an innovative and sustainable way to meet changing needs.
Rosti’s expertise in injection blow molding delivers solutions to support these efforts, helping companies meet new regulations while still providing high-quality products for their customers.
The future requires a shift from disposable to reusable packaging, and Rosti is ready to help.
