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Reshape polyester production with
AddWorks™ antimony-free catalysts

AddWorks titanium-based catalyst solutions materialize Clariant's innovative approach to more sustainable polyester production. This advanced technology offers manufacturers a high-performance alternative to traditional antimony-based catalysts, delivering enhanced polymerization kinetics at lower processing temperatures. By enabling antimony-free PET production, AddWorks catalysts address both growing supply chain challenges following China's export restrictions and increasing environmental concerns. The technology's water-stable formulation ensures consistent catalytic activity without risk of deactivation, resulting in superior polymer color, higher productivity, and reduced energy consumption. Designed for the entire polyester family including PET, PETG, PBT, and emerging polyesters like PEF, AddWorks catalysts bring substantial CAPEX and OPEX savings while supporting manufacturers' efforts to lower their Scope 1 and 2 emissions. Ideal applications include beverage bottles, food packaging, textiles, and both mechanical and chemical PET recycling processes, helping brands meet evolving consumer demands and regulatory requirements.

Discover the benefits of our titanium-based AddWorks catalyst solutions

Our innovative titanium-based technology transforms polyester production through:


  • Enhanced polymerization kinetics with higher productivity
  • Lower processing temperatures and shorter reaction times reducing energy consumption and carbon emissions
  • Superior color performance in both virgin and recycled PET
  • Water-stable formulation preventing catalyst hydrolysis and reducing downtime
  • Antimony-free chemistry addressing supply chain challenges and regulatory concerns
  • Significant CAPEX and OPEX savings through multiple efficiency improvements
  • Improved sustainability profile with lower environmental mobility and toxicity and bioaccumulation
  • Compatibility with polyester recycling, supporting circular economy initiatives

Explore our additives portfolio

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    Based on renewable crude rice bran wax, Licocare™ RBW Vita additives function as highly effective lubricants and dispersion aids.
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  • Performance Additives
    Additive solutions for the plastics and coatings industry. We started with single components for a multitude of challenges like thermal stabilization, sun and oxidation protection as well as flame retardancy and process stabilization, which still form the base of our portfolio. Listening closely to our customers and analyzing market needs, we used our long-term expertise and profound technical knowledge to develop special additive combinations which are designed and optimized for the needs of particular segments and applications. As simply by adding them you profit from a multitude of benefits, we call them »AddWorks« – because that is exactly what they do. As reliable, tested, and ready-to-use solutions, our AddWorks product family lowers total cost of ownership, reduces process complexity and allows you to fully focus your workforce and assets on your business. Discover the multitude of opportunities they offer for your line of work and make a tangible difference in your market!
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  • Advanced Surface Solutions
    Clariant is a leading global player in the development, production and distribution of wax additives and performance polymers.
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  • Plastics and polymers
    Clariant is a recognized global provider of sustainable solutions for the plastics industry including additives, colorants, and stabilizers.
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