Parafuge Facade F – Water-Repellent Facade Impregnation, 5 L

Parafuge Facade F – Deep-Penetrating Water-Repellent Treatment for Facades

Parafuge Facade F by DL Chemicals is a professional hydrophobic impregnation treatment based on silane and siloxane, developed to protect absorbent mineral building materials against rainwater penetration.

The product penetrates deeply into the pores of the substrate, creating water-repellent protection within the material. This significantly reduces water absorption while allowing water vapour to pass through the treated surface.

The transparent treatment preserves the natural appearance of the substrate and is suitable for both new and existing facades.

Main Benefits of Parafuge Facade F

• Significantly reduces water absorption in mineral surfaces

• Helps protect facades against driving rain and moisture

• Maintains the water vapour permeability of the treated material

• Penetrates quickly and deeply into porous substrates

• Preserves the original appearance of the facade

• Helps reduce damage caused by freezing and thawing

• Helps limit the formation of green deposits

• Suitable for new and existing buildings

• Ideal for treating larger continuous surfaces

• Can be applied using a brush, roller or suitable sprayer

Which Surfaces Can Be Treated?

Parafuge Facade F is designed for absorbent mineral substrates, including:

• Brick facades and brick masonry

• Concrete surfaces

• Mineral plaster and render

• Porous natural and artificial stone

• Sandstone

• Cement-based and clay-based building materials

• Porous roof tiles

• Selected mineral paving materials

Before application, we recommend testing the product on a small, less visible area.

How Does Hydrophobic Impregnation Work?

Absorbent mineral materials can take up rainwater through their pores. Repeated wetting and subsequent freezing may gradually damage the surface.

Parafuge Facade F creates water-repellent protection inside the pores, reducing the penetration of liquid water into the material.

Unlike impermeable surface coatings, it preserves water vapour permeability, allowing moisture vapour to escape.

However, impregnation does not replace structural waterproofing, crack repairs or correctly designed facade details.

How to Apply Parafuge Facade F

1. Protect adjacent surfaces that should not be treated.

2. Clean the substrate thoroughly, removing dust, dirt, deposits and loose material. Use pressure washing or a suitable cleaning product where necessary.

3. Repair damaged areas with a suitable mortar. Cracks wider than 0.15 mm must be filled before impregnation.

4. The substrate must be clean and either dry or slightly damp.

5. Apply the treatment in one coat using a brush, roller or suitable low-pressure sprayer.

6. On larger surfaces, work from top to bottom in strips approximately 40 cm wide. Apply enough product to saturate the surface evenly.

7. Allow the treated surface to dry under suitable environmental conditions.

Important: Do not apply in direct sunlight. The application temperature must be between +10 °C and +30 °C.

Consumption and Coverage of a 5 L Container

According to the manufacturer's technical data, the approximate consumption is 1–1.5 L/m², depending on substrate absorbency.

One 5-litre container therefore covers approximately 3.3–5 m².

Highly absorbent materials may require more product. We recommend testing the actual consumption on the intended substrate before treating the entire facade.

Important Application Notes

• The product contains solvents. Follow the manufacturer's safety data sheet.

• Not suitable for non-absorbent synthetic renders where the treatment cannot penetrate the substrate.

• Do not use as an adhesive, joint sealant or crack filler.

• Not a replacement for a waterproofing system designed to resist hydrostatic pressure.

• Check the absorbency and compatibility of decorative or natural stone before application.

• Clean application tools with white spirit after use.

Storage and Safety

Store and transport unopened containers upright in a cool, dry place at temperatures between +5 °C and +25 °C.

Read the safety instructions on the packaging and in the safety data sheet before use.

Additional Technical Information

Parafuge Facade F is a liquid, solvent-containing impregnation treatment with a density of approximately 0.8 g/ml and a solids content of approximately 9%.

When properly stored in its original, unopened packaging, the product has a shelf life of 12 months from the date of manufacture.

The manufacturer supplies the product in cartons containing two 5-litre containers. This product is sold as one individual 5-litre container.

Installation Accessories and Surface Protection

Parafuge Facade F is designed to provide water-repellent protection for absorbent facades and mineral surfaces.

Explore our Installation Accessories – Adhesives, Profiles and More category for additional products used in construction, sealing and surface protection.

Frequently Asked Questions – Parafuge Facade F

Is Parafuge Facade F suitable for brick facades?

Yes. It is designed to protect absorbent bricks and brick masonry against rainwater penetration.

Will the impregnation change the colour or appearance of the facade?

The manufacturer states that the treatment preserves the original appearance of the substrate. As a transparent product, it is not intended to create a decorative coloured coating. However, we recommend testing it on a small area before application.

Will the facade remain breathable after treatment?

Yes. Parafuge Facade F reduces the absorption of liquid water while maintaining water vapour permeability.

Can I use this product on natural stone?

Yes, on suitable porous natural stone, such as sandstone. The absorbency and compatibility of the specific material should be checked before application.

Is it suitable for synthetic facade render?

Not if the render is non-absorbent. The treatment must penetrate the substrate pores to work effectively.

How many square metres can I treat with one 5 L container?

Approximately 3.3–5 m² at a consumption rate of 1–1.5 L/m². Actual coverage depends on the absorbency of the surface.

Can Parafuge Facade F be applied with a roller?

Yes. It can be applied using a brush, roller or suitable low-pressure sprayer.

Can it be used to repair cracks in a facade?

No. Parafuge Facade F is not a sealant or crack filler. Cracks and damaged areas must be repaired before impregnation.

Does it help protect facades against frost damage?

Yes. By reducing water absorption, it helps limit damage associated with water penetration and subsequent freezing.

Want to Protect Your Facade Against Rain and Moisture?

Parafuge Facade F provides practical water-repellent protection for brick, concrete, plaster and other suitable mineral surfaces.

Not sure whether this treatment is suitable for your facade or how many containers you need?

Contact us – we will be happy to help you choose the right product and estimate the required quantity.