Industrial flooring
Concrete floor hardening & dustproofing for warehouses
HardRock is a pre-blended, non-metallic, inorganic dry-shake hardener (high-hardness silica) — broadcast and floated into fresh concrete to create a hard, abrasion-resistant, low-dust surface.
Public technical guidance
This page is selection and sequencing guidance, not a project method statement. The current product TDS, approved design, site assessment and trial application take precedence; structural anchors, cracks, water-retaining structures and other safety-critical work require qualified technical review.
Applicable for
- Warehouse floors
- Production workshops
- Garages and car parks
- Docks and other abrasion-exposed concrete floors
Substrate requirements
- Concrete floated flat, properly poker-vibrated; surface still wet before troweling, no standing water
- Concrete grade and properties suited to the intended use
- Screeded flat to the correct level
Step-by-step procedure
- 1
Pour concrete
Concrete grade and slump as required; poker-vibrate; screed flat to the correct level.
- 2
Preliminary floating
After 2–3 hours (per climate), float the surface to prepare for the dry-shake.
- 3
Broadcast the first HardRock coat & float
Broadcast the first coat at about 2/3 of the total selected for the duty class. When HardRock absorbs moisture and darkens, float it; float near walls, columns and doors first; slow speed, low blade angle.
- 4
Broadcast the second coat & float
Right after floating the first coat, broadcast the second coat onto the still-damp surface (more where thin) and float again.
- 5
Finish floating
When the surface has hardened (gained strength), power-trowel at high speed with tilted blades to create a smooth, glossy finish.
- 6
Cure
Immediately cure and cover the surface against sun to prevent early water loss; use BestCure to avoid staining and surface crazing.
Under the HardRock 345 TDS: 3.0–3.5 kg/m² for pedestrian duty, 4.0–4.5 kg/m² for medium duty and 5.0–5.5 kg/m² for heavy duty; broadcast in 2 passes, the first about 2/3 of the total.
Common questions
What is HardRock floor hardening for?
To create a hard concrete surface with better abrasion and scratch resistance and less dusting — suitable for warehouses, workshops, garages and car parks.
How much HardRock is needed?
3.0–3.5 kg/m² for pedestrian duty, 4.0–4.5 kg/m² for medium duty and 5.0–5.5 kg/m² for heavy duty; define the duty class before work.
Does the hardened floor need curing?
Yes. Cure immediately after floating (use BestCure) and shade against sun to prevent early water loss, staining and surface crazing.
Need advice for your project?
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