Funcosil FC and FC Plus: High-Performance Protection for Mineral Facades

Protect your masonry long-term against moisture, frost damage, and driving rain. Funcosil FC is a specialized water repellent in cream form based on silane and siloxane. With a high active ingredient content of 40%, this product guarantees deep-acting impregnation that protects mineral building materials from the inside out without affecting the appearance or breathability of the surface.

Product Variants and Appearance

Two variants are available to meet different aesthetic requirements:

Funcosil FC: This facade cream is the standard solution for invisible protection. After absorption, the appearance of the facade remains unchanged.

Funcosil FC Plus: This variant offers the same protection as the standard cream but features an additional color-intensifying property. It gives matte or faded surfaces, such as brick or natural stone, a stronger, refreshed look.

Applications

Funcosil FC was developed for the treatment of porous, mineral building materials. It is ideal for:

• Exposed masonry made of brick, clinker, or calcium silicate brick.

• Natural stone facades made of sandstone or other absorbent stone types.

• Mineral plasters and concrete surfaces.

• Renovation projects requiring intensive protection against harmful substances and driving rain.

Properties

• Reduces extreme water absorption while maintaining vapor permeability

• Excellent penetration capacity

• Optimal resistance to alkalis

• Good protection against frost and de-icing salt stress

• Cream consistency, allowing for application and processing without loss

• Highly workable, even for overhead applications

• Fast resistance to rain

• Color-intensifying (FC Plus)

Detailed Benefits and Mode of Action

The protective film of Funcosil FC settles in the pores of the building material without clogging them. This ensures that open porosity is maintained. This is crucial because water vapor can continue to escape from the inside out, while liquid water is effectively repelled from the outside.

A major benefit is energy savings. Damp masonry conducts heat outward much faster than dry material. Through hydrophobic treatment, the facade remains dry, which optimizes the building's thermal insulation. Furthermore, the material is extremely UV-resistant and alkali-stable, guaranteeing a very long service life for the protection. The creamy consistency also ensures that the active ingredient remains in contact with the surface longer, allowing it to penetrate deeper than liquid impregnations.

Application Instructions

Due to its creamy consistency, application is particularly clean and loss-free, even during overhead work.

Preparation: The surface to be treated must be clean, stable, and dry. Dirt, algae, or moss must be thoroughly removed beforehand. Cracks wider than 0.3 mm must be structurally repaired in advance.

Application: The cream is applied undiluted with a lambskin roller, a brush, or a painting brush. Depending on the absorbency of the substrate, a single coat is usually sufficient.

Absorption Phase: Immediately after application, the cream appears as a white film on the wall. Depending on the material and temperature, this film is completely absorbed within 30 to 60 minutes and becomes transparent.

Drying: The treated masonry is rainproof after approximately 60 minutes. Full effectiveness is achieved after a few days.

Technical Information and Packaging

Consumption ranges between 0.15 and 0.20 liters per square meter, depending on the porosity of the substrate. Thanks to precise application, there is minimal material loss from dripping or splashing.

Available packaging: 0.75 liter, 5 liter, and 12.5 liter buckets.


 

Discover the power of advanced masonry protection with Funcosil FC and Funcosil FC Plus by Remmers Bauchemie. These high-performance, silane-based hydrophobic impregnating agents are engineered to provide superior waterproofing and durability for your concrete and masonry structures. Whether you're embarking on a new construction project or looking to preserve and restore existing buildings, Funcosil FC and Funcosil FC Plus are your trusted partners in ensuring long-lasting protection against water penetration and weathering.

With Funcosil FC, you get a robust sealer that penetrates deep into the substrate, forming a durable, water-repellent barrier. For even greater performance and color intensity, Funcosil FC Plus offers enhanced properties, making it the ideal choice for areas subjected to weathered and discoloring. Say goodbye to water damage, moss, and algae growth, and hello to a pristine, resilient facade with Funcosil FC and Funcosil FC Plus.

Funcosil FC/Plus is produced as a cream which simplifies the application. Thanks to the extremely high active ingredient content of 40%, it has a proven long lasting effect of over 15 years. 

• high active ingredient content of 40%.
• highly water repelling
• easy to apply less material needed
• no running
• no aerosols
• can be applied with a roller, brush or by airless spraying
• can be worked overhead
• tools are cleaned with water
• little cover work
• can be applied in one working operation