3M Ceramic Microspheres W-610 High-Strength Solid Ceramic Microspheres for Wear-Resistant Coatings

Full Name & Product Positioning

Product Full Name: 3M W-610 High-Strength Solid Ceramic Microspheres

A white solid ceramic microsphere grade made of alkali aluminosilicate ceramic, with whiteness L value of 90 or above and particle size D90 approx. 32 μm. It is the coarsest grade among 3M white ceramic microspheres, providing the strongest gloss reduction (matte effect). Commonly used for low-gloss paints, thick-film maintenance coatings, adhesives, and decorative flooring, offering excellent scrub and burnish resistance while allowing higher filler loading and lower VOC formulations.

Core Technical Parameters

· True Density: 2.4 g/cm³

· Bulk Density: 1.5 g/cm³

· Mohs Hardness: Grade 6

· Compressive Strength: >60,000 psi (90% survival)

· Particle Size D90: 32 μm

· Hegman Grind: 3+

· Whiteness (L value): ≥90

· Softening Point: 1020°C

· pH Value: 9.0-12.0 (5% aqueous solution)

· Physical Form: White solid spherical powder

· Material: High-purity alkali aluminosilicate ceramic

· Standard Packaging: 25 kg/bag (also available in 1000 kg bulk)

· Core Characteristics: High strength, coarse particle size, strong matte/gloss-reduction effect, wear resistance, scrub resistance, high filling, low resin adsorption, suitable for low-VOC formulations

Key Advantages

· High hardness and compressive strength, improves scrub resistance and abrasion resistance of coatings, addressing film wear and powder shedding.

· Coarsest grade among 3M white ceramic microspheres, provides the strongest gloss reduction (matte effect), ideal for low-gloss and flat paint formulations.

· Low resin adsorption allows high filler loading, optimizes formulation systems, reduces resin demand, and enables lower-VOC environmentally friendly coating production.

· Heat resistant, corrosion resistant, aging resistant, and UV resistant; suitable for outdoor maintenance coatings and thick-film applications.

· Spherical particles provide good flowability and viscosity control, improving coating workability and film uniformity.

Main Application Areas

Core Applications: Low-gloss/flat paints, thick-film maintenance coatings (above 2 mils), industrial maintenance paints, decorative flooring

Suitable Areas: Adhesives and sealants, low-VOC environmentally friendly coatings, anti-slip floor coatings, wear-resistant industrial coatings

Prohibited Scenarios: High-gloss coatings requiring fine particle size, lightweight weight-reduction filling systems, food-contact products, ultra-high-shear precision injection molding