High-Performance Industrial Silica

GRANUSIL is produced from high-purity quartz silica, also known as crystalline silica. This industrial quartz sand is a preferred economical structural component for various industrial and contractor mixed applications requiring a reliable silica contribution or a chemically inert structural filler.

Product Highlight

Product Overview

Made from the mineral quartz, silica sand has a high silica content (at least 95%), distinguishing it from regular sand, which is usually darker in color and contains a variety of other minerals. Quartz is chemically inert and relatively hard, which gives silica coatings the ability to resist abrasion in traffic-excessive applications and stability in high-solids emulsions, elastomeric and cemented and cementitious systems.



Product category:

Silica filler


Roof and floor coatings, road markings

The high inert silica content combined with low-level soluble ions, alkalis and alkaline oxides confer non-reactivity to GRANUSIL in most corrosive and exposed environments. As a leading silica producer, Covia has the most complete selection of round to angular grain quartz silica sand shapes, offering optimized color, rheology and high compressive strength in industrial flooring coating and composites.


  • Originated at the source, with a process controlled all the way to the customer’s destination
  • Processed and sized under rigorous statistical and QA programs
  • Consistent, uniform grain shape and particle size distribution
  • Superior placement, compaction and mechanical properties
  • Predictable performance
  • Strategic distribution network

DST® Dust-Suppression Technology enhances worker safety by significantly reducing potential exposure to fine ground silica dust. This technology, which began as a collaboration with a customer who asked us to create a treated sand aligned with stricter OSHA regulations, is gaining significant momentum. Roofing, glass, construction materials and building products companies are choosing this breakthrough technology as part of their engineering control plan to significantly reduce potential exposure to silica dust.

GRANUSIL treated with DST brings you all the features of the high purity industrial quartz sand with the added benefit of reduced silica dust exposure.


  • Combine high-quality quartz silica sand with dust suppression technology
  • Reduce potential exposure to silica dust
  • Improve safety conditions

GRANUSIL HS hardscapes sand is the most reliable choice for your paver installations:


Our angular paver base — sand, slag, or limestone — compacts for a firm subsurface for patios, walkways, or driveways. We have the proper mix of smaller fines and larger aggregate that is free from debris for fast and easy screeding. Use GRANUSIL HS for a level surface and foundation, ensuring a beautiful project.

GRANUSIL HS Jointing and Bedding Sand

Count on us for washed, clean jointing and bedding sand that is symmetrically shaped for the finish your customers desire. This material, which is free from foreign matter, is natural or manufactured from crushed sandstone.

The right sand gradation saves time and money with easy sweeping, unlike other materials with larger aggregates that tend to clog the joints and prevent the sand from completely filling the joints.  


  • Higher standards, cleaner sand
  • Firm compaction
  • Predictable performance




GRANUSIL overview: GRANUSIL product sheet

GRANUSIL DST for Roofing: GRANUSIL DST for Roofing

GRANUSIL DST for Construstion: GRANUSIL DST for Construction

GRANUSIL HS overview: GRANUSIL HS product sheet

Contact Covia today at 1.800.243.9004 or, or click to fill out this form.

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