| Amorphous Silica Microspheres & Nanospheres | Cospheric LLC | Silica microspheres are inherently hydrophillic and negatively charged. These particles provide higher opacity than glass microspheres and are often used as contrast particles. Aqueous suspensions of silica microspheres rarely require the use of surfactan...view more Silica microspheres are inherently hydrophillic and negatively charged. These particles provide higher opacity than glass microspheres and are often used as contrast particles. Aqueous suspensions of silica microspheres rarely require the use of surfactants or stabilizers. Silane coatings enable silica microspheres to be modified to generate functional groups or alter surface properties. Additional advantage of silica microspheres is glass transition temperature of over 1000 degrees Celsius, which makes them suitable for high temperature applications. Silica microspheres and nanospheres are composed of synthetic amorphous silica made in a laboratory batch environment. view less | |
| Barium Titanate Glass Spheres & Microspheres | Cospheric LLC | Barium titanate glass is a unique optical glass formulation based on a large percentage of Barium Oxide (BaO) and Titanium Oxide (TiO2), as opposed to other traditional glass formulas which are mostly Silica (SiO2). Barium titanate glass offers a much hig...view more Barium titanate glass is a unique optical glass formulation based on a large percentage of Barium Oxide (BaO) and Titanium Oxide (TiO2), as opposed to other traditional glass formulas which are mostly Silica (SiO2). Barium titanate glass offers a much higher refractive index compared to other glass formulations. Refractive Index is the ratio of the speed of light in a vacuum to the speed of light in the specified material - a description of how light slows down as it passes through an optical material. High refractive index microspheres are critical when used for optical systems where high refractive power is required such as endoscopy, micro-optics, defense and microscopy. Barium titanate glass microspheres will reflect back more light directly to the viewer. High index of refraction enables retroreflectivity which is often desired in guard rails, traffic signs, reflective paint, tape or clothing. Barium titanate glass hemispherically coated with aluminum ensures that the light bounces off the aluminum- coated half of the sphere and produces the retroreflective effect for high visibility in dark conditions. view less | |
| Borosilicate Glass Spheres & Microspheres | Cospheric LLC | Borosilicate Glass is well-known for its durability, low coefficient of expansion, low density, high softening point, high resistance to acids and thermal shock, compared to other glass formulations. The chemical composition consists primarily of silicon ...view more Borosilicate Glass is well-known for its durability, low coefficient of expansion, low density, high softening point, high resistance to acids and thermal shock, compared to other glass formulations. The chemical composition consists primarily of silicon oxide (SiO2) and boron oxide (B2O3). Solid Glass Microspheres, also called glass beads, provide multiple benefits including enhanced processing, excellent chemical and heat resistance, thermal stability, low oil absorption, and are often used in automotive, electrical, household appliance, adhesives, packaging, paint and construction industries. Glass is non-toxic, extremely stable and recyclable. Cospheric specializes in solid glass microspheres with perfect sphericity, tight tolerances and particle size distributions for biomedical, life sciences, microscopy, automotive, high-tech equipment and specialty applications. view less | |
| BRB Siloen® DA 290 | BRB International BV | BRB Siloen® DA 290 is solvent solution of a fluorosilicone fluid. It can be used as a silicone defoamer for solvent-free, solvent-borne, printing inks and ambient curing plastic system (epoxy and PU). | |
| BRB Siloen® LA 271 | BRB International BV | BRB Siloen® LA 271 is a glycol-modified silicone fluid. It is an additive for ink and coating applications, especially suitable for solvent and radiation curing with good substrate wetting. | |
| BRB Siloen® PDA 222 | BRB International BV | BRB Siloen® PDA 222 is an alkyl modified siloxane. It can be used as a dispersant processing aid for pigments, fillers and additives used in paints or plastic applications. | |
| BRB Siloen® SMA 280 | BRB International BV | BRB Siloen® SMA 280 is a 50% Polyether-modified siloxane solution in Di-propylene Glycol Methylether. It is a silicone additive for waterborne and solvent coatings with excellent slip and smoothness. | |
| BRB Siloen® SMA 283 | BRB International BV | BRB Siloen® SMA 283 is a Polyether-modified siloxane. It can be used as a silicone additive for waterborne and solvent coatings with excellent slip, smoothness and anti-crater effect. | |
| BRB Siloen® SMA 284 | BRB International BV | BRB Siloen® SMA 284 is an 80% active dispersion of a high molecular weight silicone gum. It can be used as a silicone additive for waterborne and solvent coatings providing excellent slip, mar resistance, gloss and anti-blocking effect. | |
| BRB Siloen® SMA 285 | BRB International BV | BRB Siloen® SMA 285 is a 30% active emulsion of a high molecular weight silicone urethane resin. It can be used as a silicone additive for water-based coatings. | |
| BRB Siloen® SMA 286 | BRB International BV | BRB Siloen® SMA 286 is a 100% active cross-linkable silicone acrylate pre-polymer. It is a silicone additive, especially designed for radiation cure coatings such as overprint varnishes for packaging, inks, coating with release properties and wood coating...view more BRB Siloen® SMA 286 is a 100% active cross-linkable silicone acrylate pre-polymer. It is a silicone additive, especially designed for radiation cure coatings such as overprint varnishes for packaging, inks, coating with release properties and wood coatings. It can also act as an intermediate for polymers modification. view less | |
| BRB Siloen® SR 313 | BRB International BV | BRB Siloen® SR 313 is a medium hard methyl phenyl silicone resin for heat resistant paints. It can be used as a binder for heat resistant and anti-corrosive paints. | |
| BRB Siloen® SR 379 | BRB International BV | BRB Siloen® SR 379 is a hard methyl silicone resin 50% active in organic solvents. It can be used as a binder for heat resistant and anti-corrosive paints. | |
| BRB Siloen® SR 379N | BRB International BV | BRB Siloen® SR 379N is a medium hard methyl silicone resin; when dried at room temperature, it is a bit softer than BRB Siloen® SR 379 and has some more tacky residue. After baking, hardness is practically equivalent. It can be used as a binder for heat r...view more BRB Siloen® SR 379N is a medium hard methyl silicone resin; when dried at room temperature, it is a bit softer than BRB Siloen® SR 379 and has some more tacky residue. After baking, hardness is practically equivalent. It can be used as a binder for heat resistant and anti-corrosive paints. view less | |
| BRB Siloen® SR 383 | BRB International BV | BRB Siloen® SR 383 is a medium hard methyl phenyl silicone resin for heat resistant paints. It can be used as a binder for heat resistant and anti-corrosive paints. | |
| BRB Siloen® SR 833 | BRB International BV | BRB Siloen® SR 833 is a solventless, solvent thinnable alkoxy methyl silicone oligomer. It is suitable as ambient moisture cure binder for the manufacture of heat resistant coatings. In combination with suitable catalyst, pigments and fillers, can be used...view more BRB Siloen® SR 833 is a solventless, solvent thinnable alkoxy methyl silicone oligomer. It is suitable as ambient moisture cure binder for the manufacture of heat resistant coatings. In combination with suitable catalyst, pigments and fillers, can be used for ambient curing heat resistant paint. (Automotive parts, industrial coatings, ovens, stoves and barbecues). view less | |
| BRB Siloen® WA 261 | BRB International BV | BRB Siloen® WA 261 is a modified trisiloxane that provides outstanding surface tension reduction and super spreading properties. It is a surface wetting additive for coatings and inks. | |
| BRB Siloen® WA 264 | BRB International BV | BRB Siloen® WA 264 is a polyether-modified siloxane. It is a silicone surfactant for aqueous coatings with excellent wetting and levelling properties. | |
| BRB Siloen® WA 265 | BRB International BV | BRB Siloen® WA 265 is an organo-modified trisiloxane. It provides outstanding surface tension reduction and super spreading properties to any aqueous solution. It is a silicone wetting agent for waterborne and radiation curable coating, inks and overprint...view more BRB Siloen® WA 265 is an organo-modified trisiloxane. It provides outstanding surface tension reduction and super spreading properties to any aqueous solution. It is a silicone wetting agent for waterborne and radiation curable coating, inks and overprint varnishes. view less | |
| Density Marker Beads | Cospheric LLC | Density marker beads are small colored microspheres of known mass density that are used for calibrating density gradients and determining density in gradient columns. Density gradients are often used for separations and purification of cells, viruses and ...view more Density marker beads are small colored microspheres of known mass density that are used for calibrating density gradients and determining density in gradient columns. Density gradients are often used for separations and purification of cells, viruses and sub-cellular particles. Generally a set of several density marker beads covering a range of densities is used. The gradient is calibrated with beads that float at different heights within the column. When a test sample is added to the column, it drops until the point of neutral buoyancy, and the density is determined from the calibration chart. Density gradient columns can be used to measure the density of any sample. view less | |
| Fluorescent & Phoshorescent Microspheres | Cospheric LLC | Polyethylene microspheres of high sphericity and narrowly graded particle size distribution are used in industrial and scientific applications for process control, diagnostics, and medical device technology. It is often advantageous to color code the part...view more Polyethylene microspheres of high sphericity and narrowly graded particle size distribution are used in industrial and scientific applications for process control, diagnostics, and medical device technology. It is often advantageous to color code the particles by size to better understand which part of the process the spheres of the specific size were able to pass through, or where the contamination in the process is coming from. Polyethylene is inert to most solvents. Polyethylene microspheres are hydrophobic and need to be coated with surfactant prior to suspending in water or aqueous media. view less | |
| Hollow Glass Microspheres | Cospheric LLC | Hollow Glass Microspheres, also called bubbles, microbubbles, or microballoons, are typically made out of borosilicate- sodalime glass blend formulation and provide the benefits of low density, high heat and chemical resistance. The walls of glass microsp...view more Hollow Glass Microspheres, also called bubbles, microbubbles, or microballoons, are typically made out of borosilicate- sodalime glass blend formulation and provide the benefits of low density, high heat and chemical resistance. The walls of glass microspheres are rigid and typically have the thickness of 10% of the diameter of the sphere. The crush strength of the hollow spheres is determined by the thickness of the walls and, as expected, the higher the sphere density the higher the crush strength. The lightweight hollow glass spheres are chemically stable, noncombustible, nonporous, and have excellent water resistance. view less | |
| Polyethylene Microspheres & Nanospheres | Cospheric LLC | Polyethylene microspheres of high sphericity and narrowly graded particle size distribution are used in industrial and scientific applications for process control, diagnostics, and medical device technology. Neutrally-buoyant spherical polymer particles a...view more Polyethylene microspheres of high sphericity and narrowly graded particle size distribution are used in industrial and scientific applications for process control, diagnostics, and medical device technology. Neutrally-buoyant spherical polymer particles are specifically designed for suspension in fresh water, enabling flow visualization and PIV analysis of fluid flow in a device. It is often advantageous to color code the particles by size to better understand which part of the process the spheres of the specific size were able to pass through, or where the contamination in the process is coming from. Polyethylene is inert to most solvents. Polyethylene microspheres are hydrophobic and need to be coated with surfactant prior to suspending in water or aqueous media. view less | |
| Poly(methyl methacrylate) Spheres, Microspheres & Nanospheres | Cospheric LLC | Poly(methyl methacrylate), PMMA, or acrylic microspheres and spheres are spherical polymer beads that are a transparent thermoplastic synthesized from methyl methacrylate polymer. PMMA microbeads are known for high impact and heat resistance, and good ten...view more Poly(methyl methacrylate), PMMA, or acrylic microspheres and spheres are spherical polymer beads that are a transparent thermoplastic synthesized from methyl methacrylate polymer. PMMA microbeads are known for high impact and heat resistance, and good tensile and flexural strength. These strong yet lightweight polymer microspheres are often used as spacers, fillers, and reference particles for a variety of specialty applications in life sciences, medical technology, MEMS, optics and development of high performance composites. Uncoated poly(methyl methacrylate) or PMMA microspheres and spheres are often used in manufacturing of porous ceramics, self assembled microfluidic devices, and in biomedical research. Also often used as a lightweight alternative to glass microspheres. view less | |
| Retroreflective Microspheres | Cospheric LLC | Retroreflective Microspheres incorporate a hemispherically coated aluminum shell which provides maximum retroreflection. In bulk, these metallized glass spheres appear as a grey powder. Under an optical microscope, each individual microsphere displays a p...view more Retroreflective Microspheres incorporate a hemispherically coated aluminum shell which provides maximum retroreflection. In bulk, these metallized glass spheres appear as a grey powder. Under an optical microscope, each individual microsphere displays a partial aluminum coating. Aluminum (Al) coatings on microspheres offer advantages in developing retroreflective surfaces for high visibility materials and applications. The hemispherical (half-shell) aluminum coating creates the mechanism for retroreflectivity as the light passes through the clear half of the glass bead and “bounces” off the reflective aluminum-coated back surface, directing the light back to the source or the viewer. Additional surface coatings (silane or fluorochemical) ensure that the spheres remain on the surface of the formulation, thereby enhancing the effect of retroreflectivity. view less | |
| Soda Lime Glass Spheres & Microspheres | Cospheric LLC | Solid soda lime glass, also know as soda lime silicate glass, is the most common type of solid glass microspheres available. Solid Glass Microspheres, also called glass beads, provide multiple benefits including enhanced processing, excellent chemical and...view more Solid soda lime glass, also know as soda lime silicate glass, is the most common type of solid glass microspheres available. Solid Glass Microspheres, also called glass beads, provide multiple benefits including enhanced processing, excellent chemical and heat resistance, thermal stability, low oil absorption, and are often used in automotive, electrical, household appliance, adhesives, packaging, paint and construction industries. Glass is non-toxic, extremely stable and recyclable. Cospheric specializes in solid glass microspheres with perfect sphericity, tight tolerances and particle size distributions for biomedical, life sciences, microscopy, automotive, high-tech equipment and specialty applications. view less | |
| Stainless Steel Spheres & Microspheres | Cospheric LLC | Stainless Steel Spheres & Microspheres are part of a wide selection of size ranges of corrosion resistant stainless steel microspheres from 1um on up to 1.2mm. Highly spherical 304 Stainless Steel microspheres are often used as conductive spacers in bond ...view more Stainless Steel Spheres & Microspheres are part of a wide selection of size ranges of corrosion resistant stainless steel microspheres from 1um on up to 1.2mm. Highly spherical 304 Stainless Steel microspheres are often used as conductive spacers in bond line applications or as high density test projectiles. view less |
