#12ST SILICA SAND

12 - 20 mesh Effective Size 0.86 mm - Sub-Angular Light Brown-Beige

#12ST Silica Sand is used as a mineral additive, filler, or broadcast aggregate in various construction applications. Common uses include as a filler in floor coating systems, abrasive media in blasting, and as a traction additive in resin-based systems like epoxies and polyureas.

This silica sand is typically used in combination with:

• Epoxy coatings (as a filler or traction additive)
• Urethane and polyurea coatings (as broadcast aggregate)
• Concrete overlays (to improve surface profile or texture)
  It is not a standalone system but a key component in multi-layer floor or concrete repair systems.

• Industrial flooring systems requiring traction or slip-resistance
• Broadcast layers in epoxy and urethane coatings
• Abrasive media for surface preparation
• Filler in patching and repair mortars

• Grain Shape: Sub-angular, which provides mechanical interlock in coatings.
• Color: Light brown-beige.
• Effective Size: 0.86 mm (typical)
• Uniformity Coefficient: 1.60
• Bulk Density: 98–100 lbs/ft³
• MOH Hardness: 7 (hard mineral suitable for abrasive applications)
• Fusion Point: 3,150°F
• pH: 7 (neutral)
• Specific Gravity: 2.65
• Sieve Analysis: Retained across a range of meshes (most between 16 and 20 mesh, making it medium-coarse).

• Chemical Composition (Typical):
• Silicon Dioxide (SiO₂): 99.52%
• Trace oxides such as Iron Oxide (0.094%), Aluminum Oxide (0.158%), Titanium Oxide (0.0035%), etc.
• This product contains crystalline silica and can cause silicosis if proper PPE and ventilation are not used.
• Suitable for use with systems requiring a hard, inert, high-purity aggregate.
• Not UV sensitive; however, its appearance may affect the final finish if not fully embedded.
• No pot life or curing time applies to this dry granular material, but it must be properly sealed when embedded in a system to prevent dusting.