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St. Louis Group (SLG) and Zeller Polymer Solutions, an affiliate of St. Louis Group, have the same overarching commitment to excellence and innovation while bringing a wealth of expertise to the chemical additives industry.Founded in 2010, St. Louis Group has since grown into a leading supplier of Flame Retardants (FRs) and Smoke Suppressants with a diverse portfolio. SLG’s alliances with a global network of suppliers, in combination with our domestic manufacturing operations, allow us to offer halogenated and non-halogenated solutions to our customers. Due to our broad product lines and knowledge of additive, reactive, intumescent, and low smoke mechanisms, SLG is able to also provide tailor made low viscosity solutions to meet the most stringent flammability and smoke requirements. Our industry experience, reliable supply channels, cutting-edge technologies, custom offerings, and unsurpassed commitment to customer service make SLG your preferred choice in the industry.Zeller Polymer Solutions specializes in Antioxidant and UV Light Stabilizer solutions. Our team of experts are equipped with decades of experience in the chemical additives industry with the primary goal to exceed the expectations of our customers, both present and future. At Zeller, we understand the importance of efficient logistics and prompt delivery. With our robust global logistics capabilities and our strategically located warehouses, we ensure that our products reach customers around the world in a timely manner. We pride ourselves on delivering products of the utmost quality while still constantly driving innovation to provide you with the latest solutions and technologies. Zeller’s unwavering commitment to unparalleled customer service ensures that your needs are always our top priority. With our extensive global capabilities, we not only guarantee high-quality products but also strive to offer them at competitive prices, resulting in cost savings for our customer.Together, St. Louis Group and Zeller Polymer Solutions are at the forefront of the chemical additives industry, delivering excellence, innovation, and customer-focused solutions on a global scale.

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BroShield® 21-B is a high purity, non-diphenyl oxide, brominated flame retardant with excellent thermal stability.

BroShield® 21-B

BroShield® RB-11 is an efficient flame retardant for achieving the ASTM E-84 flammability test. The high halogen content & low viscosity make it a suitable choice over diols.

BroShield® RB-11

PhosGard® 140 is a low viscosity tris (2-butoxyethyl) phosphate that acts as an effective leveling agent and defoamer.

PhosGard® 140

PhosGard® NH4 is a halogen free phosphate flame retardant/plasticizer that demonstrates very low scorch & volatility.

PhosGard® NH4

SmokeShield® ZB4 is a fine particle sized zinc borate smoke suppressant. It also acts as a flame retardant synergist and a partial replacement of antimony oxide.

SmokeShield® ZB4

SmokeShield® ZM-2 is a high performance, non-molybdenum, low cost AOM replacement smoke suppressant with excellent thermal stability.

SmokeShield® ZM-2

Z-LITE® 94 is an effective hindered amine light stabilizer used in polyolefin and other polymers.

Z-LITE® 94

Z-NOX® 1076 is a hindered phenolic antioxidant that is suitable for thermoplastics and synthetic fibers.

Z-NOX® 1076

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St. Louis Group is an established &amp; viable supplier of brominated flame retardants. We are a domestic manufacturer of brominated polyols and blends. We also have contract manufacturing operations in China. Specialty dispersions and masterbatches are available upon request.

BroShield

St. Louis Group is one of the largest volume suppliers of antimony trioxide (ATO) in the US market. We are vertically integrated with mining and production operations in Bolivia and have contract manufacturing operations in China. Specialty dispersions and masterbatches are available upon request.

FireGard

Our FireBlend® line offers alternatives to antimony trioxide. We produce these proprietary products domestically and tailor them to flame retardant requirements.

FireBlend

St. Louis Group offers a wide range of highly effective liquid &amp; powder phosphorus based flame retardants. Specialty dispersions, blends, and masterbatches are available upon request.

PhosGard

St. Louis Group manufactures and distributes a comprehensive line of smoke suppressants that include traditional smoke suppressants, as well as low cost AOM alternatives and high-performance proprietary blends.

SmokeShield

APYRAL

PolyJet

CharFlam brand offers non-halogenated products that promote char formation in intumescent flame retardant applications &amp; engineering resins.

CharFlam

Polyfill

St. Louis Group ATS-325 is also known as Antimony (III) Sulfide, is a versatile compound tailored for various applications. It is crucial in ammunition manufacturing, pyrotechnics, and brake lining production. With its distinctive properties, this powdered substance contributes to the safety and performance of automotive, industrial, and military sectors. Available in convenient bags, it aligns with technology advancements and finds relevance in base chemicals, automotive, and defense markets.

St. Louis Group ATS-325

St. Louis Group ATS-200 is a versatile compound with various applications. It finds use in ammunition manufacturing, pyrotechnics, and as a key ingredient in brake linings. With a chemical name of Antimony (III) Sulfide, this black powder is available in bags for easy handling. Its distinct properties make it an essential component in the automotive, transportation, industrial, and military sectors, enhancing safety and performance.

St. Louis Group ATS-200

St. Louis Group Antimony Metal is a versatile ingot form of antimony, serving a range of vital roles. This metal finds its significance in applications such as batteries manufacturing and soldering flux, contributing to the creation of cables and supporting electrical and electronics markets. As an essential component in technical salts and inorganics, it embodies the prowess of antimony compounds. Antimony Metal is available in 4 grades: G1,G2,G3,G4.


St. Louis Group Antimony Metal

BroShield® 5220 is a reactive flame retardant comprising 60% aliphatic bromine. It proves exceptionally effective as a reactive flame retardant for polyurethanes and unsaturated polyesters. Its elevated bromine content, coupled with outstanding light stability and chemical resistance properties, establishes it as a favorable choice over halogenated anhydride flame retardants.

BroShield® 5220

PhosGard® APP-MC emerges as a melamine-coated, fine particle crystal phase II modified Ammonium Polyphosphate, seen in its fine white powder form. Its role aligns with that of an effective non-halogenated flame retardant suitable for water-based coatings, polyurethanes, thermosets, and polyolefins.

PhosGard® APP-MC

Z-LITE® 55 is an antioxidant and stabilizer categorized under both plastics and elastomers. This powder form additive is designed for various polymers including acrylics, ABS, PC, polyesters, PVC, and polystyrenes. It is identified by the chemical name 2-(2H-benzotriazol-2-yl)-p-cresol. Z-LITE® 55 features odorless properties and comes in cartons. It complies with regulations such as CERCLA, SARA 313, Clean Water Act (CWA) certification, and AIIC (Australia) chemical inventory.

Z-LITE® 55

BroShield® 8207 is a flame-retardant polymer additive suitable for both plastics and elastomers. This liquid additive, which is halogenated, is particularly compatible with PVC and polyurethanes (PU). It finds applications in processes like foams and is available in drums. It conforms to regulatory standards such as CERCLA, SARA 313, TSCA (USA), Clean Water Act (CWA) certification, and California Proposition 65.

BroShield® 8207

Z-NOX® 3114 is an antioxidant formulated for plastics &amp; elastomers applications. Belonging to the chemical family of phenols, this product serves as a protective agent against oxidation processes. Compatible with polymers and resins such as acrylonitrile butadiene styrene (ABS), polycarbonates (PC), polyethylenes (PE), and polypropylenes (PP), Z-NOX® 3114 offers the benefit of low color formation and low gas fade. This essential additive enhances material quality by preventing degradation and maintaining the appearance and properties of plastics and elastomers in various technological uses.

Z-NOX® 3114

BroShield® 25B is a potent flame retardant for industrial applications. This powder, characterized by its white color, belongs to the brominated compounds family. Its chemical composition, Bis[3,5-dibromo-4-(2,3-dibromopropoxy)phenyl] sulphone, offers excellent thermal stability, ensuring reliable performance. BroShield® 25B is compliant with TSCA (USA) regulations and is conveniently packaged in bags. This solution excels in providing effective flame resistance and is a valuable addition to industrial additive portfolios.

BroShield® 25-B

St. Louis Group

St. Louis Group (SLG) and Zeller Polymer Solutions, an affiliate of St. Louis Group, have the same overarching commitment to excellence and innovation while bringing a wealth of expertise to the chemi

St Louis Group - Flame Retardants - Smoke Suppressants - Knowde

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BroShield® RB4 is a reactive flame retardant known for its high purity and containing tetrabromophthalic anhydride. This key compound acts as a reactive intermediate for crafting flame-retardant unsaturated polyesters. The product is presented as an off-white powder. Its complete chemical nomenclature is Tetrabromophthalic Anhydride Derivative.

BroShield® RB4

BroShield® 67B is a flame retardant additive suitable for both plastics and elastomers. This product is brominated and offers high purity, ensuring good thermal and UV stability. Its chemical composition, N,N-Ethylene-bis(tetrabromophthalimide), belongs to the brominated compounds family. With excellent light stability and non-blooming characteristics, BroShield® 67B is ideal for a range of polymers including ABS, HIPS, PBT, PET, PVC, PC/ABS Alloy, PP, PPE, and TPE.

BroShield® 67-B

BroShield® 70B is a non-blooming additive flame retardant distinguished by its white powder appearance. It finds suitability in applications like PP and HIPS, allowing them to achieve class V-2 per the UL 94 standard. Its exceptional UV and light stability, combined with a high melting temperature, facilitates the production of highly filled master batch concentrates. Moreover, it's compatible with ABS, XPS, alloys, and adhesives, spanning construction and electronics applications.

BroShield® 70-B

BroShield® 64-B is a brominated flame retardant renowned for its exceptional thermal stability. Particularly outstanding in high-temperature applications, this product's resilience is further amplified by its UV resistance, effectively combating discoloration. Its compatibility with polyesters and polyamides, coupled with its non-blooming properties, positions it as a top-performing flame retardant solution.

BroShield® 64-B

BroShield® 68B is a flame retardant designed for use in plastics and elastomers. It offers excellent flame resistance properties and good thermal stability. This product contains Tetrabromobisphenol A bis(dibromopropyl ether) as its main chemical compound. BroShield® 68B is available in a powder form and is compatible with various polymers and resins, including polyolefins, polyamides, PE, PP, and TPE.

BroShield® 68-B

BroShield® 8408 is a flame retardant and plasticizer for plastics and elastomers, particularly PVC. This halogenated product offers good thermal stability and cost-effective performance. Its clear liquid form makes it easy to work with, especially in film applications. Certified under CERCLA, SARA 313, Clean Water Act (CWA), and California Proposition 65.

BroShield® 8408

BroShield® 21B is an efficient Flame Retardant additive designed for both plastics and elastomers. Its brominated, high-purity composition ensures outstanding thermal stability and flame resistance. With a white powder form, this additive is compatible with various polymers including ABS, HIPS, PET, polyolefins, LDPE, PBT, PC, polyamides, PP, TPE, and PC/ABS Alloy. It is known for being halogenated and diphenyl oxide-free, enhancing safety. BroShield® 21B's cost-effective nature makes it a preferred choice. Its solid physical form makes it easy to handle.

BroShield® 245 is a flame-retardant polymer additive suitable for plastics and elastomers. This brominated powder contributes flame retardancy and non-blooming properties, while also providing good thermal stability and UV stability. It is compatible with materials like ABS, HIPS, PBT, PC, and PC/ABS Alloy. The chemical name is 2,4,6-Tris-(2,4,6-tribromophenoxy)-1,3,5-triazine. The product complies with various regulations including TSCA (USA), CERCLA, SARA 313, Clean Water Act (CWA) certification, and California Proposition 65.

BroShield® 245

BroShield® RB4 is a reactive flame retardant known for its high purity and containing tetrabromophthalic anhydride. This key compound acts as a reactive intermediate for crafting flame-retardant unsat

BroShield® RB4 - St. Louis Group - Knowde

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BroShield® RB4

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