Products in Additives: Polyurethanes (PU)

HDK® H21 is a synthetic, hydrophobic, amorphous silica produced via flame hydrolysis. It is a white colloidal powder of high purity. HDK® H21 is used as a thickening and thixotropic agent in various applications such as composites, coatings, adhesives, and sealants, particularly in vinylester, epoxy, and polyurethane systems.

HDK® H17 is a synthetic, hydrophobic, amorphous silica produced via flame hydrolysis. It is a white colloidal powder of high purity. HDK® H17 is used as a thickening and thixotropic agent in composites, coatings, adhesives, and sealants, particularly in vinylester, epoxy, and polyurethane systems.

GENIOSIL® GF 80 is an epoxy functional alkoxysilane. When used as a coupling agent in mineral-filled plastics, it enhances filler dispersibility, reduces sedimentation tendency, and significantly lowers the resin's viscosity. Moreover, it allows for higher filler loading and provides notable improvements in water (vapor) resistance, as well as resistance to acids and bases. In the realm of adhesives and sealants, incorporating GENIOSIL® GF 80 enhances adhesion to the substrate and improves mechanical properties like flexural strength, tensile strength, and modulus of elasticity.

GENIOSIL® GF 96 is an alkoxysilane with an amino-functional group. It is a clear, colorless liquid with a characteristic amine odor. This product finds applications in various industries, particularly in building and construction adhesives, DIY projects, flooring installation, interior paints and coatings, and waterproofing membranes. GENIOSIL® GF 96 offers excellent adhesive properties and is well-suited for use in the construction and home improvement sectors.

HDK® H20RM is a synthetic, hydrophobic, amorphous silica produced via flame hydrolysis. It is a white colloidal powder of high purity. HDK® H20RM is used as a thickening and thixotropic agent in various applications such as coatings, paints, printing inks, and adhesives, particularly in epoxy, polyurethane, and acrylate systems.

HDK® H16 is a synthetic, hydrophobic, amorphous silica produced via flame hydrolysis. It is a white colloidal powder of high purity. HDK® H16 is applied as a thickening and thixotropic agent in composites, coatings, adhesives, and sealants, especially in vinylester, epoxy, and polyurethane systems. It also finds applications in adhesives.

GENIOSIL® XL 10 is an alkoxyvinyl silane compound. When exposed to moisture, the silane undergoes hydrolysis, resulting in the release of methanol. This hydrolysis process leads to the formation of silanols, which have the ability to react with each other and form siloxanes. The applications of GENIOSIL® XL 10 include marine and protective coatings, plastic additives, and plastic crosslinking.

HDK® H30RM is a synthetic, hydrophobic, amorphous silica produced via flame hydrolysis. It is a white colloidal powder of high purity. HDK® H30RM is commonly used in various applications, including automotive coatings, industrial coatings, powder coatings, and as a rheology control agent.

HDK® H30LM is a synthetic, hydrophobic, amorphous silica produced via flame hydrolysis. It is a white colloidal powder of high purity. HDK® H30LM is commonly used in various applications, including automotive coatings, industrial coatings, powder coatings, and as a rheology control agent.

GENIOSIL® GF 93 is an alkoxysilane with an amino-functional group. It is a clear, colorless liquid with a characteristic amine odor. This versatile product finds applications in various industries. It is commonly used in building and construction adhesives, DIY projects, flooring installation, interior paints and coatings, and waterproofing membranes. GENIOSIL® GF 93 offers excellent adhesion and bonding properties, making it an ideal choice for a wide range of applications in the construction and home improvement sectors.

HDK® H18 is a synthetic, hydrophobic, amorphous silica produced via flame hydrolysis. It is a white colloidal powder of high purity. HDK® H18 is used as a thickening and thixotropic agent in composites, coatings, adhesives, and sealants, particularly in vinylester, epoxy, and polyurethane systems.

HDK® H20RH is a synthetic, hydrophobic, amorphous silica produced via flame hydrolysis. It is a white colloidal powder of high purity. HDK® H20RH is highly effective as a thickening and thixotropic agent in various applications such as coatings, printing inks, adhesives, and others. It offers high compatibility, especially in epoxy, polyurethane, and acrylate systems.

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.

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.

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® 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.

KOSMOS® MB 16 is a catalyst composed of bismuth carboxylate. It finds applications in the production of 2K polyurethane elastomers, sealants, coatings, or adhesives. Compared to DABCO® MB 20, KOSMOS® MB 16 exhibits reduced sensitivity to residual moisture, resulting in shorter gel times and tack-free times. Additionally, it offers improved curing times and has a lower viscosity compared to standard bismuth grades.

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.

AEROSIL® R 202 is a hydrophobic fumed silica grade, treated with a polydimethylsiloxane. This product can be used in defoamer formulations for sedimentation stabilization and due to its high hydrophobicity as defoaming component.

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.

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.

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.

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.

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.

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.

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.

AEROSIL® 200 is a hydrophilic fumed silica with a specific surface area of 200 m²/g.

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.

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.

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.

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.

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.

DABCO® 33 LV is the industry standard tertiary amine catalyst used to promote the gel (polyol-isocyanate) reaction in the production of flexible and rigid foam, as well as CASE applications. It provides strong gel catalysis with high efficiency and serves as a versatile amine catalyst for various foam types.

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.

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.