Cure Hard Sodium Silicate Cure & Dustproofer
Cure Hard is a clear, water-based sodium silicate concrete densifier, hardener, and dustproofing treatment designed to penetrate concrete surfaces and chemically react within the pores to increase surface hardness and abrasion resistance.
It is commonly used on industrial concrete floors where dusting, surface wear, and porosity reduction are critical concerns. Unlike topical coatings, Cure Hard penetrates below the surface and permanently improves the density of the concrete without changing its natural appearance.
How Cure Hard Works
Cure Hard reacts with free lime and calcium hydroxide in concrete to form additional calcium silicate hydrate (CSH) within the pore structure. This process:
- Densifies the surface
- Reduces dusting
- Increases abrasion resistance
- Improves resistance to water, salts, oils, and chemicals
- Strengthens the concrete from within rather than coating it externally
This makes it especially effective on aged, porous, or high-traffic concrete floors.
Key Benefits
- Densifies and hardens concrete surfaces
- Reduces dusting and surface abrasion
- Improves long-term durability of concrete slabs
- Does not change natural concrete color
- Penetrating, non-film forming system
- Helps seal against oils, salts, grease, and contaminants
- Compatible with secondary coatings when properly prepared
- VOC 0 g/L and non-flammable formulation
Applications
Cure Hard is commonly used in:
- Warehouse floors
- Industrial manufacturing facilities
- Distribution centers
- Parking garages
- Concrete slabs-on-grade
- Tilt-up and commercial concrete
- Aged concrete restoration
- Polished concrete prep systems
Surface Compatibility
Suitable for:
- New concrete after finishing
- Aged concrete slabs
- Industrial floors
- Commercial concrete surfaces
- Interior and exterior horizontal concrete
Not recommended for extremely porous block or hollow substrates where penetration cannot be controlled.
Application Instructions
- Apply to clean, structurally sound concrete
- Surface must be free of dirt, laitance, and standing water
- Apply using sprayer, brush, or roller
- Do not allow puddling or over-application
- Keep surface evenly wet during absorption phase
- Remove excess residue if surface whitening occurs
- Apply at temperatures between 40Β°F and 100Β°F
Coverage Rates
- Hard troweled finish: 300β500 sq ft/gal
- Broom or float finish: 200β400 sq ft/gal
- Rough concrete: 200β300 sq ft/gal
- Aged concrete: 200β300 sq ft/gal
- Vertical surfaces: 200β300 sq ft/gal
Coverage varies depending on porosity and surface condition.
Packaging
- 5-gallon pails
- 55-gallon drums
Shelf Life
- 2 years when stored in original sealed containers
- Store in a cool, dry environment
- Prevent contamination from water, dirt, or debris
Frequently Asked Questions
What is Cure Hard used for?
Cure Hard is used to harden, densify, and dustproof concrete floors in industrial and commercial environments.
Is Cure Hard a sealer?
No. It is a penetrating densifier, not a topical coating or film-forming sealer.
Does Cure Hard change the appearance of concrete?
No. It is designed to maintain the natural look of the concrete surface.
Can Cure Hard be used on new concrete?
Yes. It can be applied after finishing once bleed water has dissipated.
Does Cure Hard stop concrete from dusting?
Yes. It significantly reduces surface dusting by densifying the concrete matrix.
Can Cure Hard be used before coatings or epoxy?
Yes, but surface preparation and compatibility must be verified depending on the system used.
How long does Cure Hard last?
It is a permanent treatment that remains active within the concrete.
Technical Data Summary (TDS)
Product Type:
Water-based sodium silicate densifier, hardener, and dustproofer
Mechanism:
Chemical reaction with calcium hydroxide forming calcium silicate hydrate within pores
Performance Characteristics:
- Increases surface hardness
- Reduces porosity and dusting
- Improves abrasion resistance
- Does not form a topical film
Limitations:
- Must be applied to clean, absorbent concrete
- Not effective on sealed or non-porous surfaces
- Requires proper surface preparation for best results
Safety Data Summary (SDS)
Hazard Classification:
Corrosive liquid (alkaline silicate solution)
Health Hazards:
- May cause skin irritation
- Eye contact may cause burns
- Harmful if swallowed
Flammability:
- Non-flammable
PPE Requirements:
- Safety goggles
- Chemical-resistant gloves
- Protective clothing recommended
Safe Handling:
- Avoid eye and skin contact
- Use ventilation in enclosed spaces
- Store sealed in original container
- Avoid freezing conditions
Supporting Documents

Description
Cure Hard is a clear, water-based sodium silicate concrete densifier, hardener, and dustproofing treatment designed to penetrate concrete surfaces and chemically react within the pores to increase surface hardness and abrasion resistance.
It is commonly used on industrial concrete floors where dusting, surface wear, and porosity reduction are critical concerns. Unlike topical coatings, Cure Hard penetrates below the surface and permanently improves the density of the concrete without changing its natural appearance.
How Cure Hard Works
Cure Hard reacts with free lime and calcium hydroxide in concrete to form additional calcium silicate hydrate (CSH) within the pore structure. This process:
- Densifies the surface
- Reduces dusting
- Increases abrasion resistance
- Improves resistance to water, salts, oils, and chemicals
- Strengthens the concrete from within rather than coating it externally
This makes it especially effective on aged, porous, or high-traffic concrete floors.
Key Benefits
- Densifies and hardens concrete surfaces
- Reduces dusting and surface abrasion
- Improves long-term durability of concrete slabs
- Does not change natural concrete color
- Penetrating, non-film forming system
- Helps seal against oils, salts, grease, and contaminants
- Compatible with secondary coatings when properly prepared
- VOC 0 g/L and non-flammable formulation
Applications
Cure Hard is commonly used in:
- Warehouse floors
- Industrial manufacturing facilities
- Distribution centers
- Parking garages
- Concrete slabs-on-grade
- Tilt-up and commercial concrete
- Aged concrete restoration
- Polished concrete prep systems
Surface Compatibility
Suitable for:
- New concrete after finishing
- Aged concrete slabs
- Industrial floors
- Commercial concrete surfaces
- Interior and exterior horizontal concrete
Not recommended for extremely porous block or hollow substrates where penetration cannot be controlled.
Application Instructions
- Apply to clean, structurally sound concrete
- Surface must be free of dirt, laitance, and standing water
- Apply using sprayer, brush, or roller
- Do not allow puddling or over-application
- Keep surface evenly wet during absorption phase
- Remove excess residue if surface whitening occurs
- Apply at temperatures between 40Β°F and 100Β°F
Coverage Rates
- Hard troweled finish: 300β500 sq ft/gal
- Broom or float finish: 200β400 sq ft/gal
- Rough concrete: 200β300 sq ft/gal
- Aged concrete: 200β300 sq ft/gal
- Vertical surfaces: 200β300 sq ft/gal
Coverage varies depending on porosity and surface condition.
Packaging
- 5-gallon pails
- 55-gallon drums
Shelf Life
- 2 years when stored in original sealed containers
- Store in a cool, dry environment
- Prevent contamination from water, dirt, or debris
Frequently Asked Questions
What is Cure Hard used for?
Cure Hard is used to harden, densify, and dustproof concrete floors in industrial and commercial environments.
Is Cure Hard a sealer?
No. It is a penetrating densifier, not a topical coating or film-forming sealer.
Does Cure Hard change the appearance of concrete?
No. It is designed to maintain the natural look of the concrete surface.
Can Cure Hard be used on new concrete?
Yes. It can be applied after finishing once bleed water has dissipated.
Does Cure Hard stop concrete from dusting?
Yes. It significantly reduces surface dusting by densifying the concrete matrix.
Can Cure Hard be used before coatings or epoxy?
Yes, but surface preparation and compatibility must be verified depending on the system used.
How long does Cure Hard last?
It is a permanent treatment that remains active within the concrete.
Technical Data Summary (TDS)
Product Type:
Water-based sodium silicate densifier, hardener, and dustproofer
Mechanism:
Chemical reaction with calcium hydroxide forming calcium silicate hydrate within pores
Performance Characteristics:
- Increases surface hardness
- Reduces porosity and dusting
- Improves abrasion resistance
- Does not form a topical film
Limitations:
- Must be applied to clean, absorbent concrete
- Not effective on sealed or non-porous surfaces
- Requires proper surface preparation for best results
Safety Data Summary (SDS)
Hazard Classification:
Corrosive liquid (alkaline silicate solution)
Health Hazards:
- May cause skin irritation
- Eye contact may cause burns
- Harmful if swallowed
Flammability:
- Non-flammable
PPE Requirements:
- Safety goggles
- Chemical-resistant gloves
- Protective clothing recommended
Safe Handling:
- Avoid eye and skin contact
- Use ventilation in enclosed spaces
- Store sealed in original container
- Avoid freezing conditions













