Chemforce Forti-Col Colloidal Silica Densifier

CHEMFORCE FORTI-COL COLLOIDAL SILICA DENSIFIER

Forti-Col™ is a next-generation colloidal silica densifier designed for polishing, curing, and sealing concrete surfaces. Its advanced formulation uses extremely small molecules for deep penetration and faster curing, delivering superior CSH (calcium silicate hydrate) hydrogel structures within concrete pores.

Key Features

• Ultra-small particle size for enhanced penetration and rapid curing
• Greater surface area with more reactive bonding sites for stronger pore structure
• Advanced additives to optimise penetration performance
• Lower, non-caustic pH – safer for users and surfaces
• UV stable – will not break down outdoors, lasting for decades
• Water-based with zero VOC content

Applications of Forti-Col™ Concrete Densifier

• Concrete densifier for polishing: Forti-Col™ is a colloidal silicate with the smallest particle size – smaller than other silicates so it can be used to impregnate concrete in the earlier stages of grinding (after 80 to 100 grit grind) and later stages (after using a 400 grit polishing pad). Impregnating twice – once in the early grinding stages and again after the 400 grit pad, is recommended for optimal results.
• Anti-dusting and curing treatment for green (freshly poured) concrete: To attain full strength, newly poured concrete needs to retain its water content for long enough for the maximum amount of cement to react and form the correct hydrogels to make the maximum number of bonds. Treating the concrete with penetrating Forti-Col™ will form CSH hydrogel inside the pores of the concrete, substantially restricting water bleed and evaporation so water is retained and the concrete can cure properly. Because Forti-Col™ is more reactive and has more bonding sites per molecule, it builds on itself and forms better hydrogel structures in the pores than other silicates.
• Primer / moisture barrier membrane for green concrete: Treating the concrete with penetrating Forti-Col™ will form CSH hydrogel inside the pores of the concrete, substantially restricting water bleed and evaporation so coatings and other floor coverings can be applied immediately. Freshly poured concrete contains a lot of water which evaporates and causes coatings to blister and delaminate, salts to redeposit underneath and lift tiles, damp and mould growth under carpeting, insulation matting, wood etc. So, slabs are usually left to cure for 60 days before installing flooring.

NOTE: If a 100% membrane is needed against water and water vapour, for example:

•  areas where water can pool and sit for extended periods, such as bathrooms
•  areas where concrete will move and crack over time
•  surfaces where there can be chemical spills

a suitable acrylic or epoxy class 3 membrane with sufficient elasticity, elongation and chemical resistance is recommended.

Available Pack Sizes

• 5L (1.3GAL)
• 15L (4GAL)
• 20L (5.3GAL)

How to Use Forti-Col

IMPORTANT: Always test on an inconspicuous area and allow to dry to check the result.

Anti-Dusting Treatment Instructions

• Ensure the concrete is dry inside before applying. If applying as an anti-dusting / treatment on freshly poured (green) concrete, give the concrete a minimum of 2 hours cure time to allow concrete to react and use up most of its water before applying.
• Apply when surface temperature is above 2°Celsius (36° F) and below 27°Celsius (80°F).
• Apply generously with a pump sprayer, saturating the surface evenly so it remains glistening wet for at least 5 – 10 minutes. Avoid pooling.
• If all the Forti-Col™ penetrates within 10 minutes, apply a second coat.
• Application rate PER COAT: approximately 4 to 10 m²
• DO NOT dilute – Forti-Col™ is ready-to-use out of the container. Tap water can reduce its penetrating power.

Concrete Polishing Instructions

• Forti-Col™ is best for the later stages of concrete polishing, after grouting and after 200 grit resin pads, in place of a Lithium Silicate.
• For earlier stages of densification after grinding with 30 to 100 grit metal-bond pads, we recommend Forti-Col EG™ or Forti-Kal™.
• Apply generously with a pump sprayer, saturating the surface evenly so it remains glistening wet for at least 5 – 10 minutes. Avoid pooling.
• If all the Forti-Col™ penetrates within 10 minutes, apply another coat.
• Application rate PER COAT for later densification: approx 6 to 15 m² / L (240 to 600 square ft / G).
• DO NOT dilute – Forti-Col™ is ready-to-use out of the container. Tap water can reduce its penetrating power.