CasaZO Activators
CasaZO Cure Activators Smarter zinc-based activation for modern rubber compounding
CasaZO is Thomas Swan’s range of high-activity cure activators designed to optimise sulphur vulcanisation, improve crosslink efficiency and deliver more consistent mechanical performance in rubber compounds. Used at low dosages, CasaZO activators help compounders achieve faster, more efficient curing with tighter control over scorch, state of cure and final properties—supporting higher productivity and robust end-use performance across tyres, technical rubber goods and general-purpose elastomers.
Engineered for modern processing and regulatory demands, CasaZO activators combine efficient zinc-based chemistry with carefully selected co-activators and dispersing aids. This delivers excellent reactivity and dispersion in the rubber matrix, supporting cleaner mixing, more uniform network formation and improved batch-to-batch reproducibility. In many cases, optimised activation can also enable reductions in total zinc level, helping customers respond to tightening environmental expectations around heavy metals.
CasaZO products are formulated with handling and plant hygiene in mind. Fine, controlled particle size and good flow characteristics support accurate dosing and rapid incorporation, while low-dust formats help maintain a cleaner working environment. CasaZO activators integrate easily into existing recipes and mixing protocols, allowing compounders to upgrade cure performance without major formulation changes or new equipment.
Backed by Thomas Swan’s global supply network and technical support, CasaZO offers a reliable, scalable cure-activation solution for manufacturers looking to fine-tune cure systems, shorten cycle times and get more value from their existing accelerator and sulphur packages.
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High-activity cure activators for sulphur-vulcanised rubber compounds
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Faster, more efficient curing to help shorten cycle times
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Improved crosslink efficiency for enhanced strength and durability
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Optimised scorch behaviour and state of cure for robust processing windows
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Excellent dispersion and reactivity for consistent batch-to-batch performance
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Potential to reduce total zinc levels versus conventional activation systems
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Low-dust, easy-handling formats to support safer, cleaner production
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Compatible with standard accelerators and sulphur packages in NR, SBR, NBR, EPDM and other elastomers
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Designed to drop into existing formulations with minimal process change
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Supported by global supply and technical expertise from Thomas Swan
Pepton Product Comparison Table
| Product | Key Benefit |
|---|---|
| Baerocid SMS-10 | Tallow based stearic acid in flake form |
| Casawax S (Rubber Grade Stearic Acid SP) | Tallow based stearic acid in prill form |
| Casawax ZEH | Rubber soluble zinc soap used primarily as an activator for NR |
| CasaZO (Zinc Oxide Special) | Standard rubber activator |
| CasaZO (Zinc Oxide Special Group) | Standard rubber activator |
