ADDITIVES | PVC FORMULATIONS
Right: IKA develops, produces, and sells additives and stabilisers for the PVC processing industry
North America in 2023 as part of a joint venture under the IKAvin brand, which offers state-of-the- art Ca-based stabiliser technologies for all applica- tions in the North American market from its site in Houston.” The calcium-based stabilisers developed by IKA under the EuroStab and GreenStab brands represent the latest technologies in the group’s PVC products and fulfil the highest requirements for environmental compatibility and efficiency, according to IKA. EuroStab enables and supports crucial advantages such as weather resistance in PVC windows, while vinyl flooring in residential and commercial properties benefits from increased durability, and PVC membranes are used in flat roofs, tunnel waterproofing, and water reservoirs. These materials must be UV-resistant, durable, and robust, and IKA said its stabilisers are ideal for these demanding applications while also ensuring that the membranes remain stable for longer, even when exposed to intense sunlight. “IKA uses its expertise and innovative spirit to drive research and development in the field of PVC stabilisers in order to support the PVC processing industry in the manufacture of future-oriented products,” said Dr Timo Seibel, CTO.
Wire and cable Japanese company Adeka is also long-established in the field of PVC stabilisation and offers tailor-
made customer solutions, taking into account processing conditions and ensuring that end requirements are met. It has also switched focus to the development of more environmentally-friendly products, and its range includes calcium-zinc system stabilisers, such as the ADK Stab RX-300 series for fittings, and the ADK Stab RUP series for wire and cable (W&C) applications which provide
PVC pellets without the need for finishing
Compounding technology group Farrel Pomini said it is offering a cost-effective and safe method for processing virgin or recycled rigid PVC that eliminates traditional finishing requirements with its newly designed Dry Face Pelletizer (DFP). The process begins by compound-
ing the rigid PVC with the Farrel Continuous Mixer (FCM) to a hot-feed single-screw extruder. The PVC cools as it passes through the extruder and moves on to the proprietary DFP that minimises die pressure and potential temperature increases while efficiently cutting pellets. After pelletising, an air
transfer system completes the cooling process along with pellet classifying and dust and fine particle removal. This concept eliminates the need for finishing the rigid PVC with a two-roll mill, water bath, and dicer, allowing for smaller capital investment and equipment footprint, as well as expedited return on investment and enhanced safety. The compact DFP is easy to
IMAGE: FARREL POMINI 34 COMPOUNDING WORLD | June 2025
operate and can be fully integrated into the user-friendly Farrel Pomini Synergy Control System, while the entire line can be completely auto- mated with minimal operator involve- ment. Meanwhile, the standard 6 L/D rotor ensures a short residence time and low heat history, especially important for processing tempera- ture-sensitive PVC.
www.compoundingworld.com
IMAGE: IKA
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