SCP 578

SCP 578 – Premium Concrete Protection
SCP 578 is a penetrating colloidal silica treatment designed for use on existing concrete. When applied to porous concrete, SCP 578 penetrates into the slab and fills accessible pore space through natural concrete reaction processes. This internal reaction significantly reduces water vapor transmission, improving compatibility with flooring adhesives, coatings and other moisture-sensitive materials.

Because SCP 578 works inside the concrete, not on the surface, it is a permanent, one-time application moisture management solution. It does not form a membrane, does not peel, and does not interfere with flooring installations or construction schedules. SCP 578 provides long-term internal protection without altering the surface profile.

Where SCP 578 Is Used

Commercial & Industrial
• Moisture-sensitive flooring installations
• Renovation projects requiring rapid return-to-service
• Slabs with elevated vapor emission concerns
• Warehouses, retail units, commercial build-outs
• Areas requiring long-term internal moisture reduction

Infrastructure & Construction
• Shotcrete, vertical concrete and formed structural elements
• Prepped porous substrates requiring internal densification
• Slabs where coatings or adhesives need reliable moisture control

Residential & Light Commercial
• Basements, workshops and utility areas
• Existing concrete needing improved moisture performance
• Spaces preparing for LVT, carpet, tile or epoxy systems

Why Choose SCP 578?

• Permanent internal moisture control — one application protects for the life of the concrete
• Reduces water vapor transmission, improving flooring system reliability
• Suitable for moisture-sensitive adhesives, coatings and finishes
• Not a surface membrane — will not peel, wear off or change texture
• Not a bond breaker — coatings, overlays and flooring systems bond normally
• Demolition or future flooring replacement can be performed without compromising protection
• Works internally within the concrete matrix for long-term performance
• Provides moisture mitigation without slowing construction schedules

SCP 578 delivers a permanent, internal upgrade for existing concrete — providing reliable moisture control, improved compatibility with finishes and long-term slab performance in commercial, industrial and residential environments.

Performance (Typical Lab Results)

• Water vapor transmission – ASTM E96:
  Approximately 70% reduction in water vapor transmission

• Hydrostatic penetration – EN 12390-8:
  Approximately 70% reduction in depth of water penetration under pressure

These improvements directly support long-term moisture control in slabs receiving adhesives, coatings, resilient flooring, and other moisture-sensitive materials.

Product Attributes

• Colour: Cloudy white

• Odour: None

• Specific gravity: 1.10

• pH: ~11.5

• VOC / VOS: 0 g/L (Zero VOC)

• Flammability: 0 (non-flammable)

• Clean-up: Water

• Environmental impact: None/Neutral

Packaging & Storage

• Available sizes: 5-gallon pails, 20-liter pails, 55-gallon drums, multi-gallon totes

• Storage temperature: 35°F–100°F (2°C–38°C)

• Store in a dry location; protect from freezing and direct sunlight

• Shelf life: 5 years in unopened original container under proper storage conditions

• Concrete: 200 ft² per gallon (4.9 m² per litre)

Coverage varies with profile, porosity, and surface conditions.

General:

• Low–medium pressure sprayer

• Fan tip: 0.024–0.031 in

• Spray 6 in (15 cm) from surface

• Apply in 50% overlapping pattern

• Maintain a wet sheen during application

• Do not use centrifugal pumps

Fresh Concrete:
Not applicable. SCP 578 is designed for existing/prepped concrete only.

Existing Concrete:

• Surface must be structurally sound

• Remove scaling, delamination, or weak concrete

• Surface must be open and porous (perform absorption test)

• Remove oil, grease, curing compounds, adhesives, paint, wax, or contaminants

• Mechanically open if required (grinding, shot blast, etc.)

• Clean thoroughly before application

Environmental Conditions:

• Hot weather: pre-wet if surface exceeds 90°F (32°C)

• Cold weather: minimum temperature 35°F (1.7°C) and rising

• Rain: stop if standing water appears; reapply affected areas after rain

Notes:

• Remove from glass, aluminum, and shiny metals before drying

• Do not apply on frozen substrates

• Joints, cracks, and penetrations must be addressed separately using appropriate waterproofing methods

Post-Application:

• Foot and vehicle traffic allowed approximately 1–3 hours after application

DOWNLOAD SDS/PDS (PDF)