Products in Additives: Polyurethanes (PU)

POLYCAT® SA 1 is a heat-activated, delayed-action polyurethane catalyst that is based on a strong cyclic amine called 1,5-diaza-bicyclo (5.4.0) undec-5-ene. It consists of POLYCAT® DBU and an organic acid "blocker." At room temperature, POLYCAT® SA 1 has low activity, but when heat is applied, its activity increases and becomes comparable to that of metallic salts. When POLYCAT® SA 1 is added to conventional amine catalyst systems, it acts as a delayed-action catalyst. It has a minimal impact on the initial reaction and does not significantly affect the flowability of the foaming mass. Its primary effect is on the final curing properties of the foam, allowing for accelerated curing and improved demould time. This material is a light brown liquid with low volatility and a slight amine-like odor. It is miscible with water and soluble in most organic solvents.

AEROSIL® R 972 is hydrophobic fumed silica grade treated with DDS (Dichlordimethylsilane). The moderate hydrophobicity of these AEROSIL® products is suited for defoaming properties in the presence of appropriate hydrophobic liquids. They are recomended for improving the sedimentation stability of defoamer dispersions as well.

Dynasylan® GLYEO is a bifunctional organosilane, features a reactive organic epoxide and a hydrolyzable inorganic triethoxysilyl group. Its dual reactivity facilitates chemical bonding to both inorganic materials (e.g., glass, metals, fillers) and organic polymers (e.g., thermosets, thermoplastics, elastomers). Serving as an adhesion promoter, crosslinking agent, and surface modifier, Dynasylan® GLYEO is a colorless, low-viscosity liquid with a subtle terpentine-like odor. It readily dissolves in alcohols, ketones, and aliphatic and aromatic hydrocarbons.

VERSALINK® P 1000 is a liquid oligomeric diamine curative that remains in liquid form at room temperature. It is easily mixed, cast, and cured at ambient temperatures. This product serves as a curative for different diisocyanates and their prepolymers. Additionally, it can be utilized as a modifier for amine or anhydride-cured epoxies, enhancing their flexibility.

Dynasylan® 1189 is a bifunctional silane, boasts a reactive secondary amine and hydrolyzable methoxysilyl groups. Its dual reactivity enables chemical binding to both inorganic materials (such as glass, metals, fillers) and organic polymers (like thermosets, thermoplastics, elastomers). Serving as an adhesion promoter, surface modifier, and catalyst for substance modification, Dynasylan® 1189 contributes to versatile applications.

TEGO® Antifoam 2291 is a silicone-free, self-emulsifying antifoam concentrate without any silica. This APEO-free organic antifoam is designed for use as an anti-foaming agent in waterborne adhesive formulations, aligning with eco-friendly labeling claims. Categorized under CASE ingredients within foam control additives.

KOSMOS® T 100 is a dimethyl tin-based catalyst used in the production of polyurethane foams, coatings, sealants, elastomers, RIM, and spray applications. It is a liquid organic tin compound known for its exceptional catalytic activity. KOSMOS® T 100 exhibits high selectivity towards the urethane reaction, resulting in shorter gel times and tack-free times.

Evonik VPS SIVO 280 is a groundbreaking multifunctional siloxane adhesion promoter with aminofunctionalities, finds applications across various industries. Primarily for use in adhesives & sealants, it enhances adhesion for hybrid products (e.g., silylated polyurethanes, MS Polymers®) and RTV-silicones, particularly on challenging polymethylmethacrylate (PMMA) substrates. VPS SIVO 280 also contributes to suitable adhesive cure, while imparting added flexibility and hydrophobicity.

Dynasylan® GLYMO is a bifunctional organosilane, featuring a reactive organic epoxide and hydrolyzable inorganic methoxysilyl groups. This dual reactivity empowers Dynasylan® GLYMO to chemically bond with both inorganic materials (e.g., glass, metals, fillers) and organic polymers (such as thermosets, thermoplastics, elastomers). It functions as an adhesion promoter, crosslinking agent, and surface modifier.

AEROSIL® R 974 is hydrophobic fumed silica grades treated with DDS (Dichlordimethylsilane). The moderate hydrophobicity of these AEROSIL® products is suited for defoaming properties in the presence of appropriate hydrophobic liquids. They are recommended for improving the sedimentation stability of defoamer dispersions as well.

Dynasylan® SIVO 214 is an aminofunctional silane composition with enhanced crosslinking activity. It serves as an adhesion promoter, facilitating bonding between inorganic materials (such as glass, metals, fillers) and organic polymers (including thermosets, thermoplastics, elastomers). Additionally, it functions as a surface modifier and supports chemical modification of various substances.

POLYCAT® SA 2 LE is a low-emissive, delayed-action tertiary amine based on DBU. It effectively enhances the urethane reaction when heat is applied, making it suitable for microcellular, integral skin, coating, adhesive, sealant, and elastomer applications. This product is especially recommended for use with low-activity aliphatic isocyanates.

Dynasylan® VPS 4721 is a bifunctional organosilane, with a reactive organic epoxide and hydrolyzable inorganic methoxysilyl groups. Through its dual reactivity, Dynasylan® VPS 4721 forms chemical bonds with both inorganic materials (e.g., glass, metals, fillers) and organic polymers (including thermosets, thermoplastics, elastomers). This compound serves as an adhesion promoter, crosslinking agent, and surface modifier.

POLYCAT® DBU is a powerful gel catalyst that offers excellent curing properties at high temperatures, specifically for artificial turf applications. It is a tertiary amine known as diazobicycloundecene (DBU), which greatly enhances the urethane reaction (polyol-isocyanate) in various applications such as semi-flexible microcellular foam, coatings, adhesives, sealants, and elastomers.

Dynasylan® 1122 is a secondary aminofunctional ethoxysilane, characterized by two symmetric silicone atoms. It functions as an adhesion promoter between inorganic materials (such as glass, metals, fillers) and organic polymers (including thermosets, thermoplastics, elastomers). In addition to its role as a surface modifier, Dynasylan® 1122 can be employed for the chemical modification of various substances.

VERSALINK® P 650 is a liquid oligomeric diamine curative that remains in liquid form at room temperature. It can be easily mixed, cast, and cured at ambient temperatures. This product serves as a curative for different diisocyanates and their prepolymers. Additionally, it can be used as a modifier for amine or anhydride-cured epoxies, enhancing their flexibility.

POLYCAT® SA 102 is a heat-activated catalyst that offers excellent front-end delay, activated at a thermo-activation temperature of approximately 60 °C (140°F). This catalyst is specifically recommended for artificial turf applications. It belongs to the category of blocked amine catalysts, which are known for their ability to provide delayed reaction profiles.

VERSALINK® 740 M is a high-performance diamine curative designed for mixed isomer liquid polyurethane prepolymers. It has also demonstrated its effectiveness as a curative for epoxy resins. This versatile product finds applications in a wide range of industries, including coatings, adhesives, sealants, and elastomers.

Dynasylan® 1124 is a secondary aminofunctional methoxysilane with symmetric silicon atoms, serves as an adhesion promoter between inorganic materials (like glass, metals, fillers) and organic polymers (thermosets, thermoplastics, elastomers). This versatile compound also functions as a surface modifier and enables chemical substance modification. Available as a colorless to yellow liquid with an amine-like odor, Dynasylan® 1124 readily dissolves in alcohols, aliphatic, or aromatic hydrocarbons.

VERSALINK® P 250 is an oligomeric diamine curative that exists as a waxy solid at room temperature. It can be easily mixed, cast, and cured at ambient temperatures. This product serves as a curative for different diisocyanates and their prepolymers. Furthermore, it can function as a modifier for amine or anhydride-cured epoxies, enhancing their flexibility.

Dynasylan® VPS 7163 is an exceptional silane solution offered by Evonik, specifically designed for use in 1K/2K polyurethanes, including reactive hot melt adhesives. This innovative product serves as a valuable tool for formulators, addressing the issue of inadequate adhesion on specific metals and challenging polymer substrates. With Dynasylan® VPS 7163, the need for a primer can be eliminated, providing an efficient solution to enhance bonding performance.

POLYCAT® SA 8 is a tertiary amine utilized to enhance the urethane reaction either through heat activation or when combined with co-catalysts at ambient temperature. This product finds application in coatings, adhesives, sealants, elastomers, and composites. By using formulations containing POLYCAT® SA 8, it is possible to achieve an extended pot life comparable to that of mercury catalysts.

GENIOSIL® GF 91 is an alkoxysilane that contains an amino-functional group. It is a clear, colorless to light yellow liquid with a characteristic amine odor. This product finds application in various areas, including building and construction adhesives, do-it-yourself projects, flooring installation, interior paints and coatings, and waterproofing membranes.

WACKER® 1038 is a specialized product formed by the reaction of silicone resin with silicone fluids, resulting in the creation of water-repellent release films. These films demonstrate superior affinity compared to polydimethylsiloxanes and other organomodified silicone fluids of similar viscosity.

WACKER® L 656 is an aminoalkyl-functional polydimethylsiloxane. Compared to other curable amino silicone fluids, it demonstrates improved storage stability, both in its pure form and in ready-to-use formulations. This makes WACKER® L 656 an excellent choice as a component for rinse-off agents in automatic car washes.

WACKER® L 653 is an aminoalkyl functional polydimethylsiloxane. Unlike other curable amino silicone fluids, it offers improved storage stability both in its pure form and in ready-to-use formulations. WACKER® L 653 finds application in paint conditioners and paint polishes, delivering enhanced gloss and detergent resistance. Compared to conventional polydimethylsiloxanes like the WACKER® AK series, the aminoalkyl functional WACKER® L 653 demonstrates excellent affinity to a variety of substrates, ensuring long-lasting gloss and color depth.

EZ-Blox® optimizes the performance of alkyd-based paint and coating formulations by preventing surface skin formation due to contact with atmospheric oxygen when, between uses, such formulations sit in containers. EZ-Blox® is a breakthrough product that offers a safe, cost-effective replacement for MEKO, typically with equal efficacy and compatibility with other components in such formulations. With EU-REACH certification and low-toxicity, EZ-Blox® is ideal for paints and coatings producers looking to reformulate high-performance alkyd-based systems post ECHA’s reclassification of MEKO as a Carcinogen 1B substance on March 1, 2022.

GENIOSIL® GF 9 is an organofunctional silane with various applications. It is commonly used in building & construction adhesives, Flooring installation, Industrial adhesives, Interior paints & coatings, and waterproofing membranes. GENIOSIL® GF 9 is particularly effective in glass-fiber reinforced or mineral-filled polymers as well as a surface modifier.

Harcryl® 1228 UV is a unique, functional, acrylic monomer consisting of mono and di-phosphate esters of 2-Hydroxyethylmethacrylate. The ratio of mono-alkyl to di-alkyl phosphate allows it to be easily incorporated into a variety of polymer systems, and its polarity provides for application in hydrophilic formulations as well. The main application for Harcryl® 1228 UV is UV curable coatings, and it is inhibited with 100ppm of added MeHQ.

Harcryl® 1228 is a unique, functional, acrylic monomer consisting of mono and di-phosphate esters of 2-Hydroxyethylmethacrylate. The ratio of mono-alkyl to di-alkyl phosphate allows Harcryl® 1228 to be easily incorporated into a variety of polymer systems. The polarity of Harcryl® 1228 provides for application in hydrophilic formulations as well. The primary use area for Harcryl® 1228 is emulsion polymerization and it is inhibited with 400ppm of added hydroquinone.

Harcryl® 1228 M is a free acid phosphate ester of 2-HEMA (hydroxyethyl methacrylate). It is predominantly composed of the monoalkyl phosphate ester, making it easy to incorporate into a variety of polymer systems. The ratio of mono-alkyl to dialkyl phosphate makes Harcryl® 1228 M more hydrophilic than Harcryl® 1228. In addition, it is inhibited by the addition of 400 ppm hydroquinone.

HALOX® XTAIN® L-47 is a liquid stain-inhibiting additive that is zinc-free, ammonia-free, and free of volatile organic compounds (VOCs). Specifically formulated to prevent tannin bleed, it is highly effective in waterborne coating systems such as acrylic emulsions and polyurethane dispersions (PUD) used on various wood species, including redwood, merbau, and oak. This advanced additive delivers exceptional performance while meeting European ecolabel requirements, as it does not rely on Zn2+ cations. HALOX® XTAIN® L-47 offers similar efficiency to its predecessor, HALOX® XTAIN® L-44.

HALOX® 570 is an organic corrosion inhibitor designed for use in waterborne industrial and decorative coatings to provide flash rust and long-term corrosion protection on metal surfaces. HALOX® 570 is especially effective along weld seams and, in some cases, can also be used in solvent-based coatings and UV-cured systems. HALOX® 570 may be used in formulations based on waterborne acrylic latexes and co-polymers, styrene/acrylic latexes, acrylate epoxy esters, 2-pack epoxy systems, alkyds, alkyd/acrylic blends, and 1 or 2-pack polyurethane. HALOX® 570 may be used in both waterborne primers and direct-to-metal topcoats. In direct-to-metal coatings, HALOX® 570 has a minimal effect on gloss reduction.

Dragonox® 1076 is a phenolic primary antioxidant used for processing and long-term thermal stabilization. This product has good heat resistance and water extraction performance. It can be applied to polyolefins, such as polyethylene, polypropylene, and polybutene-1, as well as to other polymers, such as engineering plastics, styrene homo- and copolymers, polyurethanes, elastomers, adhesives, and other organic substrates.

HALOX® 570 LS is a ready-to-use liquid version of our popular organic corrosion inhibitor, HALOX® 570, which requires no dilution. It is designed for use in water-based industrial and decorative coatings to provide flash rust and long-term corrosion protection on metal surfaces. It is especially effective along weld seams to prevent galvanic corrosion. HALOX® 570 LS may be used in formulations based on water-based acrylics, epoxy esters, 2-component epoxy, water-reducible alkyds, and water-based polyurethanes. HALOX® 570 LS may be used in both water-based primers and direct-to-metal topcoats. In direct-to-metal coatings, HALOX® 570 LS has a minimal effect on gloss reduction.

HALOX® 430 JM is a non-toxic, heavy metal-free anti-corrosive pigment designed for use in waterborne and solventborne protective coating systems. HALOX® 430 JM is based on a unique synergy between an ion scavenging and passivation mechanism. It is recommended for use in long-term applications where the use of heavy metals, such as zinc, strontium, barium, molybdenum, and chromate, is of concern.