Glass beads

Advantages

• Nearly perfect sphere – uniform mill wear, no scoring on working surfaces, and extended equipment service life.
• Free of air bubbles – eliminates the risk of sudden bead breakage under load; the product is not contaminated with glass fragments.
• Transparent and pure glass – does not alter the color of white or light pigments, which is critical for paints, coatings, and printing inks.
• Compressive strength approx. ~1200 N – reliable performance in high-viscosity pastes and at high mill speeds without cracking.

How It Works

Glass beads are loaded into the grinding chamber of a bead mill together with the suspension. As the rotor spins, thousands of beads collide intensively, generating shear and impact forces. They break down pigment agglomerates into individual particles and distribute them evenly throughout the volume. The result is a stable, homogeneous dispersion free of lumps and coarse particles.

Technical Specifications

Available Fractions

Applications

• Paints and coatings: water-based and alkyd paints, enamels, varnishes, primers, fillers.
• Printing inks: offset, flexographic, screen.
• Construction chemicals: colorant pastes, liquid pigment concentrates.
• Crop protection products (pesticides, herbicides): fine grinding of active substances for the preparation of suspension concentrates.
• Mineral fillers: wet grinding of chalk, talc, kaolin, marble.
• Chemical industry: dispersion of pigments in plasticizers, milling of pastes for dyes.

Selection Guide

• 0,8 – 1,5 mm: for ultra-fine grinding and production of highly dispersed pastes. Used in mills with small gaps (slot separation). Ideal for inkjet printing inks and products with microscopic particles.
• 2,0 – 3,0 mm: universal range for most paints and coatings (architectural and industrial paints, enamels). Provides a balance between grinding speed and fineness.
• 3,0 – 5,0 mm: for pre-grinding and coarse suspensions. Well suited for wet grinding of mineral fillers and pigments with high solids content.
• Over 5.0 mm: special applications: grinding of fibrous materials, large crystals, pre-dispersion in heavy pastes.

Tip: Always follow the bead size recommendations of your mill manufacturer for your specific product. If you are unsure which fraction is optimal, contact us – we will help you select the right solution based on the mill type and desired grinding fineness.

Packaging

Glass beads are packed in heavy-duty polyethylene bags with an inner film that protects against moisture and contamination. Net weight per bag: 25 ± 0.2 kg. The precise weight facilitates dosing when loading the mill.

FAQ