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With the increasingly unpredictable Dutch climate, the demand for facade waterproofing products is growing rapidly. Under the umbrella term impregnation products, we include all solutions that penetrate the surface to make it water-repellent, durable, and protected.
Waterproofing exterior walls and facades is officially called hydrophobization. This process involves applying a product that:
Makes the outer surface of the wall water-repellent
Keeps the wall vapor-permeable from the inside
This means rainwater can no longer penetrate, while moisture from inside can still escape. The result? No mold growth, a drier wall, and better insulation performance.
Hydrophobic agents consist of two components:
Carrier – ensures deep penetration into the pores of the substrate
Active substance – chemically reacts with the mineral components of the wall
Because the product penetrates deeply into the pores, it creates a long-lasting protection that does not peel or discolor. The wall remains breathable but no longer absorbs water.
At Impregneeroutlet.nl, we use the term impregnation products for convenience, but technically, we mean hydrophobic agents.
A treated facade offers numerous advantages:
Prevents penetrating damp
Makes the facade water-repellent for years
Reduces algae and mold growth
Improves insulation by keeping walls dry
Protects against acid rain
Guards against graffiti
Provides fire-retardant properties
Prevents frost damage
Stops lime, salt, and rust efflorescence
Avoids unsightly stains on windows and frames
With the right product, your facade will last for years, remain visually appealing, and stay structurally strong. Use our Product Selector to easily find the best solution.
Many people think waterproofing is costly, but that’s a misconception.
50–80% cheaper than hiring a professional
Save on labor, travel costs, and height work
Control the quality of the final result
Expert application
Higher costs due to labor, materials, and safety regulations
DIY impregnation is an excellent choice for cost-conscious and handy homeowners.
Impregnation product (calculate required amount + 10–20% extra)
Low-pressure sprayer (weed sprayer) for liquids
Block brush or long-pile roller + paint bucket for creams
Protective sheets and tape (not needed for creams)
Old clothes and gloves
Ladder or scaffolding
Clean the facade – Use hot water and optionally high pressure. For heavy dirt or weathered walls, sandblasting or chemical cleaning is recommended.
Protect surroundings – Cover paving and tape windows and frames if necessary.
Wear protective clothing – Gloves and old clothes advised.
Prepare the product – Shake well and fill the sprayer.
Adjust spray nozzle – Choose a soft, full jet (do not mist).
Apply the product
Start at the bottom
Work in clear horizontal bands upward
Ensure full saturation
Apply a second wet-on-wet coat if needed
Clean tools and spills immediately – Use a turpentine solution.
Drying time – Allow at least 5 hours.
Congratulations – your facade is now waterproofed!
Clean the facade – Same as above.
Protect paving – Cover only; taping windows usually unnecessary.
Wear protective clothing
Prepare the cream – Stir well and pour into a paint bucket. Follow the technical datasheet on our website.
Apply the cream
Start at the bottom
Work in manageable sections upward
Use roller, brush, or airless sprayer
Usually, one coat is enough
Clean tools – Use soapy water.
Drying time – About 30 minutes.
Your waterproofing project is complete!
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