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Do Sender Chem supplies a comprehensive portfolio of polymer additives spanning accelerators, inhibitors, antistatic agents, flame retardant synergists, conductive carbon blacks, processing aids, and specialty monomers. Our additives are engineered for consistent performance in unsaturated polyester (UP) resin curing, thermoset composites, thermoplastics processing, and masterbatch manufacturing. The majority of our polymer additives are derived from vegetable sources and many carry food contact approval, making them suitable for packaging and sensitive end-use applications. Backed by proprietary synthesis technology developed in our Shandong R&D laboratories, we provide not just products, but reliable technical partnership. Explore By ## Product **Categories** [ ### Accelerators 14 products ](#accelerators) [ - ### Nouryact® Cobalt-Free 3 products ](#nouryact) [ ### Antistatic Agents 9 products ](#antistatic) [ ### Flame Retardants 1 product ](#flame-retardant) [ ### Conductive Carbon Blacks 2 products ](#conductive) [ ### Processing Aids & Others 3 products ](#other) [ ### Inhibitors 1 product ](#inhibitors) [ ### Specialty Monomers 1 product ](#monomers) Highlight ## Featured **Products** Metal Accelerator ### Accelerator 553SN Cobalt(II) 2-ethylhexanoate in solvent mixture. Cobalt accelerator for curing unsaturated polyester (UP) resins. Available in Africa, Asia, Asia Pacific, China, Europe, India, and the Middle East. CAS 136-52-7 [Read more](/product/?pid=Accelerator+553SN) Cobalt-Free Accelerator ### Nouryact® CF30 Iron-based accelerator for high-temperature curing of UP resins, acrylic resins, and vinyl ester resins. A sustainable alternative to traditional cobalt-based accelerators. Proprietary [Read more](/product/?pid=Nouryact+CF30) Conductive Carbon Black ### Ketjenblack® EC-600JD Electroconductive carbon black delivering superior conductivity with minimal impact on mechanical properties. Ideal for antistatic and conductive polymer compounds. CAS 1333-86-4 [Read more](/product/?pid=Ketjenblack+EC-600JD) [Search All 30 Products](/product-search/?q=&ProductLineName=Polymer+additives) ## Cobalt-Based Metal Accelerators High-efficiency cobalt accelerators for unsaturated polyester (UP) resin curing at ambient and elevated temperatures. These products deliver fast cure response with reliable gel-to-cure transition across hand lay-up, spray-up, filament winding, pultrusion, and resin transfer molding (RTM) processes. Product Name Chemical Name CAS No. Form Regions Accelerator 383SN Cobalt(II) 2-ethylhexanoate in solvent mixture 136-52-7 Liquid Africa, Europe, India, Middle East Accelerator 55028N Cobalt(II) 2-ethylhexanoate and barium carboxylate 136-52-7, 2457-01-4 Liquid Africa, Europe, India, Middle East Accelerator 553SN Cobalt(II) 2-ethylhexanoate in solvent mixture 136-52-7 Liquid Africa, Asia, Asia Pacific, China, Europe, India, Middle East Accelerator NL-49PN Cobalt(II) 2-ethylhexanoate 136-52-7 Liquid Africa, Europe, India, Middle East Accelerator NL-51PN Cobalt(II) 2-ethylhexanoate 136-52-7 Liquid Africa, Europe, India, Middle East Accelerator NL-53N Cobalt(II) 2-ethylhexanoate 136-52-7 Liquid Africa, Europe, India, Middle East ## Amine Accelerators Aromatic amine accelerators used in conjunction with organic peroxides for curing unsaturated polyester resins, particularly in benzoyl peroxide (BPO) cure systems. Product Name Chemical Name CAS No. Form Regions Accelerator NL-64-100 N,N-Diethyl aniline 91-66-7 Liquid Asia Pacific, Europe ## Cobalt-Free Accelerators Accelerator™ Metal-complex accelerators free of cobalt, offering a more sustainable curing solution for unsaturated polyester and thermoset resins. Designed as direct replacements for cobalt-based accelerators with equivalent or superior reactivity. Product Name Chemical Name CAS No. Form Regions Accelerator CF13 Metal complex 7758-89-6 Liquid Africa, Europe, India, Middle East Accelerator CF31 Metal complex Proprietary Liquid Global Accelerator CF32 Metal complex Proprietary Liquid Africa, Europe, India, Middle East ## Nouryact® Cobalt-Free Accelerators Copper- and iron-based accelerators that serve as direct, drop-in replacements for traditional cobalt- or amine-based accelerators. These products deliver high reactivity and excellent process flexibility while meeting evolving regulatory and sustainability requirements. Product Name Chemical Description CAS No. Form Application Nouryact® CF12N Copper-based accelerator 142-71-2 Liquid Ambient-cure UP, acrylic & vinyl ester resins Nouryact® CF30 Iron-based accelerator Proprietary Liquid High-temperature cure UP, acrylic & vinyl ester resins Nouryact® CF40 Iron-based complex accelerator Proprietary Liquid UP, acrylic & vinyl ester resins ### Perodox® Cobalt-Free Accelerator Technology Our Perodox® cobalt-free accelerator range represents a significant advancement in sustainable thermoset curing technology. Developed through proprietary synthesis methods, these copper- and iron-based products deliver equal or superior gel and cure performance in unsaturated polyester, vinyl ester, and acrylic resin systems — while helping customers meet increasingly stringent environmental and workplace safety standards. Compared to conventional cobalt octoate accelerators, Perodox® products offer improved color stability in finished parts, reduced pre-gel drift during processing, and consistent batch-to-batch reactivity. [Show All Perodox® Products](/products/perodox/) ## Specialty Accelerator Proprietary accelerator systems for specific polymerization processes. Product Name Chemical Description CAS No. Form Regions Accelerator CTAS Proprietary mixture of organosulfur and organozinc compounds in solvent. Used in combination with Perkadox PF-MT40 for acrylic solid surface production. Catalyzes and modifies the rate of polymerization of acrylic syrups. Proprietary Liquid Africa, Asia, Asia Pacific, China, India, Latin America, Middle East, North America, Oceania ## Armostat® Antistatic Agents A comprehensive range of internal antistatic additives for thermoplastics including polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS, SAN, and BOPP. Both fast-migrating (short-term) and long-lasting (permanent) grades are available, derived from vegetable, animal, or synthetic sources. Product Name Chemical Description CAS No. Form Target Polymer Armostat® 1000 Pastilles Glycerol monostearate — fast-migrating, near-instant performance 31566-31-1 Pastilles General purpose (PE, PP, PS) Armostat® 1800-XP75 (Hydrogenated tallow)-bis(2-hydroxyethyl) amine — long-lasting for BOPP 90367-28-5, 9003-07-0 Granules BOPP Armostat® 300-XE50 Tallow-bis(2-hydroxyethyl) amine — long-lasting for LDPE/LLDPE 61791-44-4, 9002-88-4 Granules LDPE, LLDPE Armostat® 300-XE75 Tallow-bis(2-hydroxyethyl) amine — long-lasting for HDPE 61791-44-4, 9002-88-4 Granules HDPE Armostat® 300-XP80 Tallow-bis(2-hydroxyethyl) amine — long-lasting for PP 61791-44-4, 9003-07-0 Granules PP Armostat® 400 Coconut-based, semi-permanent, low-color liquid antistatic. Plant-based alternative to Armostat 300 for PE, LDPE, PP, SAN, ABS, and HIPS 61791-31-9 Liquid PE, LDPE, PP, SAN, ABS, HIPS Armostat® 400-XN50 Coconut-based internal antistatic for SAN applications 61791-31-9, 9003-54-7 Granules SAN Armostat® 400-XP75 Coconut-based internal antistatic for PP applications 61791-31-9, 9003-07-0 Granules PP (coconut-based) Armostat® 400-XS50 Coconut-based internal antistatic for PS applications 61791-31-9, 9003-53-6 Granules PS Armostat® 600-XP75 Animal-based, long-lasting internal antistatic for BOPP 90367-28-5, 9003-07-0 Granules BOPP (animal-based) ## Armoquell® Flame Retardant Synergists Non-aromatic, non-blooming brominated flame retardants designed for polyolefin applications. These products provide excellent fire safety performance without surface migration or aesthetic degradation. Product Name Chemical Description CAS No. Form Target Application Armoquell® FR930 Tris(2,3-dibromoisopropyl) isocyanurate — non-aromatic, non-blooming brominated flame retardant 52434-90-9 Powder PP, PE, PS ## Ketjenblack® Electroconductive Carbon Blacks High-performance conductive carbon blacks that impart superior electrical conductivity to polymer compounds with minimal impact on mechanical properties. Widely used in antistatic and electroconductive plastic applications including battery components, fuel cells, electronics packaging, and automotive parts. Product Name Chemical Description CAS No. Form Key Feature Ketjenblack® EC-300J Electroconductive carbon black 1333-86-4 Pellets Minimal impact on mechanical properties Ketjenblack® EC-600JD Electroconductive carbon black 1333-86-4 Pellets Ultra-high conductivity at low loading levels ## Inhibitor™ Polymerization Inhibitors Effective inhibitors for controlling gel time and extending shelf life of unsaturated polyester resin formulations, particularly under ambient temperature processing conditions. Product Name Chemical Description CAS No. Form Application Inhibitor™ NLC-10 Inhibitor for ambient temperature conditions 98-29-3; 6846-50-0 Liquid UP resin gel time control, shelf-life extension ## Processing Aids Specialty processing aids for highly filled polymer composite systems, improving dispersion, throughput, and surface quality. Product Name Chemical Description CAS No. Form Application Armowax® W-440 Specialty processing aid for highly filled polymer composites 134210-67-6 Pastilles Highly filled polymer composites, improved dispersion & throughput ## Nourycryl® Specialty Monomers Methacrylate monomers designed for advanced coatings, adhesives, and low-shrink composite formulations. Product Name Chemical Description CAS No. Form Key Features Nourycryl® MC 110 Methacrylate monomer developed for coatings and adhesives to improve adhesion and reduce VOC. Can be used as a low-shrink reactive diluent in adhesive formulations. Combines low viscosity with high glass transition temperature. Also functions as a non-yellowing, UV-resistant co-monomer. 46729-07-1 Liquid Low viscosity, high Tg, non-yellowing, UV-resistant, low-shrink reactive diluent [Search All 30 Products](/product-search/?q=&ProductLineName=Polymer+additives) Resources ## **Download** Your Documents ### Polymer Additives Product Brochure Comprehensive overview of all 30 polymer additive products with technical specifications, application guidelines, and regional availability. Type: Brochure  |  Language: English  |  PDF — 2.1 MB ### Cobalt-Free Accelerator Selection Guide Technical guide comparing Accelerator™ CF and Nouryact® cobalt-free products with performance data, substitution guidelines, and case studies. Type: Technical Guide  |  Language: English  |  PDF — 3.8 MB Accelerator™, Inhibitor™, Armostat®, Armoquell®, Armowax®, Ketjenblack®, Nouryact®, Nourycryl®, and Perodox® are trademarks of their respective owners. Do Sender Chem operates as an independent specialty chemicals manufacturer. 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