Products

AEROSIL® R 816 fumed silica powder offers an alternative technology to stabilize oil/water emulsions. Due to the special surface modification of the silica both hydrophilic and hydrophobic properties are introduced in just one material. This enables AEROSIL® R 816 to enrich at oil/water interfaces and thereby stabilize oil droplets in a continuous water phase by the Pickering effect.Furthermore, AEROSIL® R 816 brings structure to the continuous water phase and increases its viscosity which limits the mobility of the oil droplets, thereby providing for even more emulsion stability.

SIPERNAT® 22 S is a finely milled, hydrophilic silica. It is primarily used as a free-flow agent in other applications. SIPERNAT® 22 S can also be used in-situ hydrophobized in defoamers. The use of an alkaline catalyst is recommended.

SIPERNAT® 22 is a hydrophilic, coarse silica combining a high absorptive capacity with a good flowability. It is well suited to transform any type of liquid, including defoamers, into dry, free flowing powder concentrates.

SIPERNAT® 45 S is a carrier silica with high absorbency that finds typical applications in rubber and plastic additives, plant protection formulations, and feed additives. Its benefits include improved flow properties in fine particle applications, faster production rates, and increased capacity.

ULTRASIL® VN 3 GR has a specific N2 surface area of approximately 180m²/g and is utilized in nearly all areas of the rubber industry. It is available in both powdered and granulated forms. ULTRASIL® VN 3 GR offers a high reinforcing potential in combination with a high level of transparency in the finished rubber product, such as in shoe soles. Furthermore, ULTRASIL® VN 3 GR is widely used in different bonding systems.

AEROSIL® R 208 is a fumed silica aftertreated with polydimethylsiloxane with excellent thickening properties.

CHROMATOCEL® S-200 is a 70 x 230 mesh (63 - 200 micron) powdered silica gel (silicon dioxide) specifically designed for chromatography, batch extractions, and decolorizations. It serves as an effective general adsorbent for impurities as well. The optimized particle size, surface area, pH, and purity of CHROMATOCEL® S-200 make it particularly valuable for separating small molecules, peptides, lipids, alkaloids, and various other compounds.

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

ULTRASIL® VN 2 is primarily used at high filler loadings in PCT (passenger car tire) tread compounds without any loss in processing behavior. This silica is particularly well-suited for use in combination with bifunctional organosilanes, which help to optimize wet and winter properties. Additionally, high static moduli are observed with and without additional organosilanes. This is why ULTRASIL® VN 2 is also widely used in other mechanical rubber goods. It is available in both powder and granulated silica forms.

SIPERNAT® 45 is a high-absorbency carrier silica that is capable of converting liquid active substances or solutions into powders. It has the ability to produce concentrates with up to 75% concentration. This carrier silica finds typical applications in rubber and plastic additives, plant protection formulations, and feed additives.

SIPERNAT® 50 S is a hydrophilic, finely milled silica. Besides its application as flow aid and highly effective anticaking agent it also may serve as carrier of especially high absorptive capacity in case particle fineness is required.

SIPERNAT® 22 LS is a very finely milled, hydrophilic silica. It is primarily used as a free-flow agent in other applications.

CHROMATOCEL® S-060 is a 230 x 400 mesh (37 - 63 mincron) powdered silica gel (silicon dioxide) specifically designed for chromatography, batch extractions, and decolorizations. It serves as an effective general adsorbent for impurities as well. The optimized particle size, surface area, pH, and purity of CHROMATOCEL® S-060 make it particularly valuable for separating small molecules, peptides, lipids, alkaloids, and various other compounds.

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.

AEROSIL® R 812 S is hydrophobic fumed silica grade treated with HMDS (Hexamethyldisilazane). It is even more hydrophobic than AEROSIL® R 812 and convenient for stabilizing a defoamer and well suitable as a component of foam control agents.

AEROSIL® R 805 is a high thickening fumed silica surface treated with OCTMO.

SPHERILEX® 30 AB is a very fine particle size specialty precipitated silica, which has attractive properties for antiblocking application of polymer films. As shown in antiblocking testing, its spherical particle morphology and uniform particle size distribution provides optimal clarity and antiblocking efficiency in plastic films. Based on its low absorptivity it performs also excellent in combination with slip agents. High masterbatch loadings are possible due to its easy incorporation and dispersion during thermoplastic compounding process.

ZEOFREE® 80 is a finely milled, hydrophilic silica. It is primarily used as a free-flow agent in other applications. ZEOFREE® 80 can also be used in-situ hydrophobized in defoamers. The use of an alkaline catalyst is recommended.

SIPERNAT® D 13 is a milled, hydrophobic (i.e., not wettable by water) silica, high methanol wettability and low surface. It is used in a great variety of technical defoamers due to its high effectiveness and ease of dispersion.

AEROSIL® R 106 is a hydrophobic fumed silica after treated with D4 (Octamethylcyclotetrasiloxane).

ULTRASIL® 7000 GR is a highly reinforcing silica that has been specifically developed for use in low-rolling-resistance passenger car tire tread compounds, commonly referred to as "Green Tires". This silica has a specific BET surface area of approximately 175 m²/g, and it exhibits excellent incorporation and dispersion behavior. When used in tire tread compounds, it imparts high abrasion resistance, excellent rolling resistance, and improved wet traction.

AEROSIL® R 8200 is a structure modified hydrophobic silica grade treated with HMDS (Hexamethyldisilazane). It is characterized by an extremely low thickening effect and high compacted bulk density. Its high hydrophobicity makes it suitable as a defoamer silica.

ZEOFREE® 5162 is a finely milled, hydrophilic silica. It is primarily used as a free-flow agent in other applications. ZEOFREE® 5162 can also be used in-situ hydrophobized in defoamers. The use of an alkaline catalyst is recommended.

AEROSIL® 300 is a hydrophilic fumed silica with a specific surface area of 300 m²/g.

SIPERNAT® 500 LS is a very finely ground silica with high surface area, low drying loss and particulary high absorbency.

SIPERNAT® 35 is a very finely milled, hydrophilic, slightly alkaline silica, used in dry roast hydrophobized defoamer formulations.

AEROXIDE® Alu C 805 is a fine-particulate, fumed aluminum oxide (Al₂O₃) that is highly hydrophobized with an organosilane.

SIPERNAT® 340 is a medium sized silica with spherical particles and high oil absorption capacity (DBP). Is less dusty than small particle size flow agents, yet still gives good free flow improvement performance.

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.

ULTRASIL® 7000 is a mechanically compacted granulate that results in less dust development during mixing thanks to the granulation process. ULTRASIL® 7000 GR, on the other hand, is an easily dispersible and highly reinforcing silica that was specifically developed for low-rolling-resistance passenger car tire tread compounds. It imparts high abrasion resistance to tread compounds, along with excellent rolling resistance and wet traction. To achieve these properties, it is necessary to use ULTRASIL® 7000 in combination with a bifunctional organosilane, such as Si 69®, Si 75®, Si 266®, or Si 363.

SIPERNAT® D 17 is a hydrophobic (i.e., not wettable by water) silica also used in defoamer.

SIPERNAT® 380 is an ultra-fine particle size precipitated silica with applicability in many markets. Its particle size and distribution are based on a unique process that results in a variety of effects. SIPERNAT® 380 provides excellent free flow and anti-caking properties in powdered foods.

ULTRASIL® 360 is a semi-active precipitated silica with a very low N2 surface area of approximately 55m²/g. It is particularly well-suited for use in extrusion, injection molding, calendaring mixtures, and soft roll processes. This product is easy to process, even at high filler loadings. When used in vulcanized rubber goods, ULTRASIL® 360 leads to lower residual deformation and excellent dynamic characteristics.

AEROSIL® R 812 is hydrophobic fumed silica grade treated with HMDS (Hexamethyldisilazane). It can be used for sedimentation stabilization and due to its high hydrophobicity as defoaming agent.

SIPERNAT® 26 is a very finely milled, hydrophilic silica. It is primarily used as a free-flow agent in other applications. SIPERNAT® 26 can also be used in-situ hydrophobized in defoamers. The use of an alkaline catalyst is recommended.