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Vinyl chloride monomer (VCM) is polymerized into PVC through suspension polymerization. During this process, reactor fouling and polymer buildup on internal walls can significantly reduce heat transfer efficiency and lead to product quality issues. Our [antifouling agents](#products) — including the **Noxol®** and **Everplus®** product lines — are the industry-standard solution for preventing these issues, reducing costly downtime for reactor cleaning and extending production cycles. We also offer a comprehensive range of **secondary suspending agents** that play a critical role in controlling PVC resin porosity, improving particle morphology, and enhancing drying and stripping performance. Our product portfolio includes [water-based emulsions](#products) (DCloud® and Ethapol®) and [solvent-based solutions](#products) (Active®) to meet diverse process requirements. All products are manufactured under strict quality control standards and are supported by comprehensive technical documentation, including **Certificates of Analysis (COA)**, Safety Data Sheets (SDS), and Technical Data Sheets (TDS). - Raw Material VCM + Initiator Polymerization PVC Reactor Stripping & Degassing Drying & Packaging Antifouling Agents Antifouling Agents Suspending Agents PVC Production Process PVC production process — where antifouling agents and secondary suspending agents play a critical role Product Categories ## Explore our **product range** [ ### Antifouling Agent — Noxol® Product Noxol® is the worldwide standard in antifouling. Our range of copolymer solutions prevents reactor fouling and polymer buildup in suspension PVC processes. Read more ](#filter-antifouling) [ ### Water-based Secondary Suspending Agent — DCloud® and Ethapol® DCloud® and Ethapol® emulsions replace solvent-based secondary suspending agents, offering improved environmental and safety profiles. Read more ](#filter-water) [ ### Solvent-based Secondary Suspending Agent — Active® Active® is a classic solvent-based secondary suspending agent, providing reliable performance for PVC porosity control and particle morphology. Read more ](#filter-solvent) **15** results · PVC reactor additives Clear all filters Function Antifouling agent Secondary suspending agent All functions Brand Noxol® Everplus® DCloud® Ethapol® Active® Itafa™ AFA-C Physical Form Liquid Emulsion Polyvinyl acetate partially hydrolysed, solution in ethanol and ethyl acetate ### Active® 45 Active® 45 is a partially hydrolysed polyvinyl acetate, solution in ethanol and ethyl acetate. It serves as a secondary suspending agent in PVC polymerization processes. Poly vinyl acetate PVAc Liquid Active® CAS: 25213-24-5 Global [ View product ](https://dosenderchem.com/product/?pid=Active%2045) Polyvinyl acetate partially hydrolysed, solution in water and ethanol ### Active® 55 Active® 55 is a partially hydrolysed polyvinyl acetate, solution in water and ethanol. A versatile secondary suspending agent for PVC production. Poly vinyl acetate PVAc Liquid Active® CAS: 25213-24-5 Global [ View product ](https://dosenderchem.com/product/?pid=Active%2055) Formaldehyde copolymer with 1-naphthol, solution in water ### AFA-C AFA-C is an antifouling agent particularly suited for protection of internal walls of reactors used for suspension polymerization of PVC. Liquid China CAS: 25359-91-5 [ View product ](https://dosenderchem.com/product/?pid=AFA-C) Polyvinyl acetate partially hydrolysed, emulsion in water ### DCloud® 35 DCloud® 35 is a secondary suspending agent particularly suited to the suspension polymerization of PVC. A water-based emulsion offering improved environmental profile. Poly vinyl acetate PVAc Emulsion DCloud® CAS: 25213-24-5 Africa, Europe, India, Latin America, Middle East, North America [ View product ](https://dosenderchem.com/product/?pid=DCloud%2035) Polyvinyl acetate partially hydrolysed, emulsion in water ### DCloud® 45 DCloud® 45 is a secondary suspending agent particularly suited to the suspension polymerization of PVC. Water-based emulsion formulation for enhanced sustainability. Emulsion DCloud® CAS: 25213-24-5 Africa, Europe, India, Latin America, Middle East, North America [ View product ](https://dosenderchem.com/product/?pid=DCloud%2045) ### Request a Certificate of Analysis (COA) Need technical documentation? Contact us to request COA, SDS, or TDS for any product in our portfolio. [Get in touch](#contact) Polyvinyl acetate partially hydrolysed, solution in ethanol and ethyl acetate ### Ethapol® 45 LV Ethapol® 45 LV is a polyvinyl acetate partially hydrolysed, solution in ethanol and ethyl acetate. A solvent-based suspending agent for specialized PVC applications. Poly vinyl acetate PVAc Liquid Ethapol® CAS: 25213-24-5 China [ View product ](https://dosenderchem.com/product/?pid=Ethapol%2045%20LV) Partially hydrolysed polyvinyl acetate, solution in water and ethanol ### Ethapol® 55 Ethapol® 55 is a partially hydrolysed polyvinyl acetate, solution in water and ethanol. A widely used secondary suspending agent with global availability. Poly vinyl acetate PVAc Liquid Ethapol® CAS: 25213-24-5 Global [ View product ](https://dosenderchem.com/product/?pid=Ethapol%2055) Polyvinyl acetate partially hydrolysed, emulsion in water ### Ethapol® MPG Ethapol® MPG is a polyvinyl acetate partially hydrolysed, emulsion in water. A water-based secondary suspending agent with excellent performance characteristics. Liquid Ethapol® CAS: 25213-24-5 Global [ View product ](https://dosenderchem.com/product/?pid=Ethapol%20MPG) Copolymer of 1-naphtol and formaldehyde, solution in water ### Everplus® Everplus® is a copolymer of 1-naphtol and formaldehyde, solution in water. An effective antifouling agent for PVC reactor protection. Organic peroxide Liquid Everplus® CAS: 25359-91-5 Global [ View product ](https://dosenderchem.com/product/?pid=Everplus) Copolymer of 1-naphtol and formaldehyde, solution in water ### ITAFA-Great ITAFA-Great is an antifouling agent particularly suited for protection of internal walls of reactors used for suspension polymerization of PVC. Liquid Itafa™ CAS: 25359-91-5 China [ View product ](https://dosenderchem.com/product/?pid=ITAFA-Great) Copolymer of 1-naphtol and formaldehyde, solution in water and ethanol ### Noxol® ETH Noxol® ETH is a copolymer of 1-naphtol and formaldehyde, solution in water and ethanol. An antifouling agent providing effective reactor protection. Organic peroxide Liquid Noxol® CAS: 25359-91-5 Global [ View product ](https://dosenderchem.com/product/?pid=Noxol%20ETH) Copolymer of 1-naphtol and formaldehyde, solution in water ### Noxol® ETH/S3 Noxol® ETH/S3 is a copolymer of 1-naphtol and formaldehyde, solution in water. A proven antifouling agent for suspension PVC reactor protection. Organic peroxide Liquid Noxol® CAS: 25359-91-5 Global [ View product ](https://dosenderchem.com/product/?pid=Noxol%20ETH%2FS3) Copolymer of 1-naphtol and formaldehyde, solution in water ### Noxol® WSW Noxol® WSW is an antifouling agent particularly suited for protection of internal walls of reactors used for suspension polymerization of PVC. Organic peroxide Liquid Noxol® CAS: 25359-91-5 Global [ View product ](https://dosenderchem.com/product/?pid=Noxol%20WSW) Copolymer of 1-naphtol and formaldehyde, solution in water ### Noxol® WSW/D2 Noxol® WSW/D2 is a copolymer of 1-naphtol and formaldehyde, solution in water. Designed for effective antifouling protection in PVC suspension polymerization. Organic peroxide Liquid Noxol® CAS: 25359-91-5 Global [ View product ](https://dosenderchem.com/product/?pid=Noxol%20WSW%2FD2) Copolymer of 1-naphtol and formaldehyde, solution in water ### Noxol® WSW/D7 Noxol® WSW/D7 is an antifouling agent particularly suited for protection of internal walls of reactors used for suspension polymerization of PVC. One of the most widely specified antifouling products globally. Organic peroxide Liquid Noxol® CAS: 25359-91-5 Global [ View product ](https://dosenderchem.com/product/?pid=Noxol%20WSW%2FD7) No more results to show Applications ## Related **content** [ Applications ### PVC Production Solutions Comprehensive solutions for the PVC manufacturing process — from raw material handling to final product quality control. Learn how our additives improve efficiency and output. ](/applications/pvc-production/) Resources ## **Download** your documents ### Brochure — Essential Ingredients for PVC Production All information about essential ingredients for PVC production including antifouling agents (Noxol®, Everplus®) and secondary suspending agents (DCloud®, Ethapol®, Active®). Type: Brochure Language: English Format: PDF Size: 821.6 KB [ Download ](#) Get In Touch ## Speak with our **Experts** First Name Last Name * Email * Phone Company Country * Select country Afghanistan Albania Algeria Argentina Australia Austria Bangladesh Belgium Brazil Canada Chile China Colombia Czech Republic Denmark Egypt Finland France Germany Greece Hong Kong Hungary India Indonesia Iran Iraq Ireland Israel Italy Japan Jordan Kazakhstan Kenya Korea, South Kuwait Malaysia Mexico Morocco Netherlands New Zealand Nigeria Norway Oman Pakistan Peru Philippines Poland Portugal Qatar Romania Russia Saudi Arabia Singapore Slovakia South Africa Spain Sri Lanka Sweden Switzerland Taiwan Thailand Turkey Ukraine United Arab Emirates United Kingdom United States Uzbekistan Venezuela Vietnam City * Market Segment * Select market segment Polymer processing PVC manufacturing Chemical distribution Plastics compounding Construction materials Automotive Packaging Other Message Submit Inquiry Noxol®, Everplus®, DCloud®, Ethapol®, Active®, and Itafa™ are registered trademarks of their respective owners. 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