The fraction defines the structure
Fine quartz filler packs the mix and supports thinner, smoother layers. As grain size increases, texture becomes more pronounced, minimum application thickness grows and slip resistance can increase.
In resin systems, aggregate size is linked to mix viscosity and resin consumption. In broadcast systems, the grain also defines the finished surface profile.
Cleanliness and moisture matter
Dry material free from clay, dust and organic contamination is particularly important for resins and coatings. Moisture or inconsistent grading can impair wetting, adhesion and repeatability.
- match the permitted grain range to the formulation;
- confirm moisture and cleanliness requirements;
- check compatibility with the selected resin or binder;
- run a trial batch before regular production.
Start with a test area
Even neighbouring fractions can change flow, layer thickness and visual appearance. A small test helps assess consumption, texture and adhesion before the full application.
For proprietary systems, always follow the manufacturer’s technical data sheet for filler size, mixing ratios and application sequence.