Houston, TX – As global regulatory bodies tighten restrictions on organotin compounds due to their environmental and health hazards, Dorf Ketal, a global leader in specialty chemical innovation, is stepping forward with a dedicated portfolio of tin-free catalyst technologies designed to meet the evolving needs of formulators across multiple industries.
Dorf Ketal’s Tyzor® and Unilink® catalyst families offer high-performance, environmentally compliant alternatives to traditional organotin-based systems used in adhesives, sealants, coatings, inks, and polymer synthesis. These organo-titanate and metal-organic technologies are engineered to deliver equal or superior reactivity, adhesion, and durability while enabling compliance with international regulations, such as REACH, RoHS, and TSCA.
“Our tin-free technologies are more than just replacements—they are performance upgrades,” said Zissis Pappas, Global Business Director for Catalyst Technologies at Dorf Ketal. “We’ve invested heavily in developing advanced catalyst systems that allow our customers to maintain process efficiency while reducing environmental impact and improving workplace safety.”
Addressing Global Compliance and Sustainability Demands
Organo-tin compounds, which have long been used as catalysts and crosslinkers, are facing increasing scrutiny due to their persistence in the environment, aquatic toxicity, and potential human health risks. Dorf Ketal’s specialized catalyst solutions, including Tyzor AA-75, LA, IAM, TE, and the Unilink 2130 and 2500 series, provide manufacturers with a safer path forward without compromising performance.
These catalysts have been proven effective in:
- Room-temperature vulcanizing (RTV) silicone sealants
- Polyurethane adhesives and coatings
- PET and polyester polymer synthesis
- Esterification and transesterification reactions
They also support low-VOC and heavy-metal-free formulations, aligning with the growing global demand for safer, more sustainable chemistries.
Trusted Performance, Backed by Application Expertise
Dorf Ketal’s technical service and R&D teams work closely with formulators to validate tin-free performance across diverse substrates and chemistries. The company also offers product selection and regional regulatory support to simplify the transition away from organotin.
“Replacing organotin catalysts is no longer optional in many markets—it’s a business necessity,” added Zissis Pappas, “and we’re proud to offer solutions that help our partners stay ahead of compliance curves while delivering better products to their customers.”
About Dorf Ketal
Dorf Ketal Chemicals is a global leader in specialty catalysts, additives, and process chemicals for the refining, petrochemical, polymer, and coatings industries. With a presence in over 30 countries and state-of-the-art R&D facilities, Dorf Ketal is committed to delivering innovative chemistry that drives safety, sustainability, and performance.
For more information on tin-free catalyst solutions, contact us tyzor@dorfketal.com.
