Ceramic Microspheres

High Performance Abrasion Resistance

3M solid ceramic microspheres are used as an additive in coating and polymer formulations. Due to their high hardness and spherical morphology they offer outstanding abrasion, scratch and burnish resistance. 

Ceramic microspheres are used in various thermoplastics and thermosets to improve the strength, toughness and durability of the composite. Their spherical nature eases constraints on loading levels and improves processability.

Being composed of an alkali alumino silicate means that they are UV transparent down to 250 nm, allowing them to be easily incorporated into UV curing systems.


    • Alkali alumino silicate microspheres.

    • High particle strength, up to 60,000 psi crush strength. Mohs hardness of 6.0.

    • Chemically inert.

    • Semi-transparent particles. Powder has a white body colour.

    • UV-transparent down to 250 nm.


    • Outstanding scratch, abrasion and burnish resistance.

    • Helps reduce VOC levels in coating formulations.

    • Low viscosity build even at high filler loadings.

    • Low wear on equipment despite high hardness.

    • Longer working times in epoxy systems vs. other common fillers.

    • Can be used in polymers to improve various mechanical properties.

Typical Applications

    • Industrial & decorative coatings (aqueous and non-aqueous).

    • Automotive primers.

    • Powder coatings.

    • Thermoplastic and thermoset compounds. 2k epoxy systems in particular.

    • UV cured coatings, lacquers, adhesives and polymers.

Featured grades with technical datasheets

A brief overview of the key grades is given below. You will find the Technical Datasheets (TDS) available for download. If you are looking for a Safety Datasheet (SDS) or Product Safety Information (PSI) then please get in touch by phone or via the contact buttons at the top of the page.

Should you not find what you are looking for here then please note that we have further grades available besides these. One of our Technical Sales team will be happy to help. All of the sales team are technically qualified and will be able to advise you on which product to choose. You can either call us, email us or fill in a quick form at the top of the page to get us to call you (Request a Callback). A sample can be requested via the button at the top of the page as well. Please note that by providing us with your contact details, you are agreeing for us to potentially contact you.

Related brochures & technical literature

You will find some of the key product brochures available for download below. There are more brochures available upon request. If you would like to discuss your enquiry further then please get in contact by phone or by filling in the "Request a Callback" form at the top of the page. Someone from the technical sales team will then call you within 24 hours, to discuss your project further.

3M Microspheres Selection Guide

An overview of the features and benefits offered by using glass bubbles and ceramic microspheres in different applications.

3M Microspheres - Selection Guide Brochure /




Ceramic Microspheres for Architectural and Industrial Coatings

Industry specific brochure looking at the features and benefits of ceramic microspheres in decorative and industrial coating systems.

Ceramic Microspheres for Architectural and Industrial Coatings Brochure /