At Cospheric, we specialize in manufacturing precision spherical particles for research and industrial applications. We work with scientists and engineers in leading universities as well as research organizations and manufacturing companies worldwide. We utilize our extensive technical expertise in microspheres and micropowders to help each individual customer find a creative microparticle solution for their unique needs.
We are constantly expanding the selection
of precision spheres, microspheres, microbeads and microparticles in variety of colors, materials,
densities, fluorescent, phosphorescent, paramagnetic, solid, hollow,
monodisperse, spacer grade, neutrally-buoyant, flow tracer, seed particles and density marker beads.
Solid and hollow glass, silica, PMMA, polyethylene, and other polymer
spheres, silver-coated glass, aluminum-coated retroreflective particles,
TiO2-coated spheres and more unique microbeads. Large majority of our products are manufactured in-house at our production facility in California, USA utilizing our proprietary technology.
How many different "precision spherical particles" products do you carry?
About two thousand unique nanospheres, microspheres, and precision spheres are in stock and ready to ship the same business day. The list keeps growing as new scientific and industrial needs are identified by our customers. Large majority of our products are manufactured in-house at our production facility in California, USA utilizing our proprietary technology.
How do I place an order for spherical particles?
The easiest way to place an order is on this website with a credit card. Shipping charges are automatically calculated. We ship worldwide daily. Quick and efficient on-line check-out with clearly stated prices and stock status enables you to place an on-line order 24/7 anywhere in the world. You are welcome to email us if you need a formal quote.
Do you accept purchase orders?
Yes! Please check out on this website and email us a copy of your purchase order. Purchase orders might take additional 1-2 business days to process.
Can you make custom microspheres for my project?
Possibly. Please contact a microsphere expert for a product recommendation or a custom quote. Please provide as much detail as possible about your application and product requirements.
We specialize in manufacturing custom microspheres with
specific gravity between 0.95g/cc and 1.3g/cc, particles with
exceptional sphericity and tight size distribution, as well as PIV tracer particles and spheres (seed particles) for flow visualization studies.
We have the capability to custom manufacture larger order quantities, specific size ranges, color, density, or specific properties, and coating options which offer
endless customization possibilities.
Does Cospheric offer NIST-traceable microspheres?
NIST traceable microscopy measurements of particle size and pycnometer measurements of density are available for most microspheres with the purchase of NIST traceable microsphere certificate of analysis.
Does Cospheric offer a catalogue of all the products?
Because of our extensive constantly growing product line, we do not publish a printed catalogue. Our website is our catalogue and we do our best to keep it as accurate and up to date as possible.
Why buy microspheres from Cospheric?
Our product line is unique because it offers the broadest selection and the highest quality anywhere in the world. Our microspheres are extremely well-characterized with images and detailed technical descriptions, defined size ranges, and specific densities to the second and sometimes third decimal place, listed on each product page.
Large selection of microsphere products allows you to place one order with lots of options for design of experiments, contamination studies, optimizing bond line spacing, and other R&D, engineering, and industrial projects. We offer multiple types of microspheres of the same size, multiple types of microspheres of the same density, multiple colors of microspheres in the same size and/or density.
Do you apply custom coatings on microspherers?
We offer a large selection of coated microspheres, with a wide variety of coating options. There are also possibilities for custom coated products. We own proprietary technology for applying hemispherical half-shell coatings on particles and arranging a monolayer of particles in an array or a specific pattern. We also have extensive experience in electronic paper development.
Contact a microparticles expert to discuss your needs.
Do you offer custom particle sizing and classification services?
pride ourselves on tight particle size distribution of our products and offer
custom particle size classification services to grade your
particles, powders or aggregates to size. We are equipped to grade your particles
to any size between 15um (0.00059 inches) and 5.6mm (0.220 inches). Spacer grade particles and custom particle sizes are possible and available by request. We utilize a very strict quality control process using Optical Microscopy to guarantee that the product is in spec and can provide a certificate of compliance per request.
Do you offer analytical services?
Yes! Our testing lab provides measurement services for NIST-traceable Particle Size and Shape and Particle Size Distribution utilizing Optical or SEM Microscopy depending on the size of the particles. We can provide a technical report that includes high resolution images of your particles and a detailed analysis of results. Since we specialize in custom density microspheres and density marker beads, we are equipped to perform
NIST-traceable Density Measurements of your particles with the most accurate gas pycnometer on the market.