Which surfaces is this water-repellent agent suitable for?

It is suitable for porous mineral surfaces such as brick, mineral plaster, concrete, sand-lime brick, and porous natural stone.

How many coats do you need to apply?

One thick undiluted coat applied with a roller or block brush provides up to 25 years of protection.

Does the wall remain breathable after application?

Yes, it prevents driving rain penetration while allowing the masonry to breathe.

What area can you cover with 5 l?

A 5 l bucket covers between 20 and 40 m², depending on the porosity of the substrate.

TEC7 WP7-401 Gevel Waterdicht impregnating agent for exterior walls (rectangular bucket 5l) - 602050000

Name: TEC7 WP7-401 Gevel Waterdicht impregnating agent for exterior walls (rectangular bucket 5l) - 602050000
Brand: TEC7
SKU: 03203998
Price: 94.2 EUR
Availability: PreOrder

Supplier number: TEC7 602050000 | EAN 5414195011706

94.20 tax incl.

€77.85 excl. VAT (incl. all environmental contributions)

On order: delivered from 19/10/2026

The minimum purchase order quantity for the product is 2.

Ordered before 20:00 - delivered as of 19/10/2026
Free shipping
Delivery by DHL

↓ Documents (2) ✆ Talk to a specialist

Invisible weatherproofing using WP7-401

Practical benefits

Long-lasting exterior moisture barrier: A single application reliably protects porous exterior walls against driving rain and persistent water ingress.
Fully breathable wall structure: The vapour-permeable barrier allows your masonry to breathe naturally, maintaining thermal efficiency and reducing frost risk.
Invisible dirt repellent finish: It penetrates completely clear while repelling dirt, moss, and algae accumulation across mineral surfaces.

In a nutshell

The right choise for

With the TEC7 WP7-401 Gevel Waterdicht facade waterproofer, you reliably protect porous exterior walls from driving rain and water infiltration. Applying just one thick coat with a roller or block brush delivers durable weather protection for up to 25 years. The treatment is white upon application for clear visual control and dries completely transparent without altering the appearance of your masonry. It keeps the surface breathable and vapour-permeable while preventing frost damage, efflorescence, and the accumulation of dirt, moss, or algae. This 5 l bucket covers between 20 and 40 m² of brick, concrete, sand-lime brick, or mineral plaster.

Product information FAQ

€94.20

tax incl.

Key features according to our expert

Net volume: 5 l
UN number: Not applicable
Relative density: 0,83
ADR packing group: Not applicable
Physical state: Solid
ADR class: Not applicable
EUH-statements: EUH208
Flash point: 65 °C

Product description

INVISIBLE IMPREGNATION FOR EXTERIOR WALLS

Makes walls waterproof
Lets walls breathe
Energy-saving
Dirt-repellent
1 coat = 25 years protection
Easy to use: visible upon application and invisible after penetration
Applicable on all porous mineral substrates and fully absorbed after 30 to 60 minutes
Prevents rain penetration
A dry façade means energy savings and less frost damage
Prevents green deposits and moss growth on north-facing facades
Reduces the adhesion of dirt, making façades easier to clean
Strong reduction of salt efflorescence

Instructions

Apply to stable, clean, hand-dry and porous façade. Allow to dry for two days after cleaning and at least 7 days after repairing brickwork
Apply undiluted in one thick layer with a coat roller or block brush
Treat natural stone completely or cover to prevent staining
Wood can also be treated, first test on a wood sample and allow to dry for 24 hours
Remove spilt product immediately with a damp cloth and rinse with clean water
Clean material with clean water
Remove dried patches using Tec7 Cleaner
Consumption +/- 30m²
/ 5L depending on surface varying between 20 and 40 m²/5L

Supplemental hazard information

EUH208: Contains ... (see safety data sheet). May produce an allergic reaction.

Documents

⤓ Technical data sheet PDF ⤓ Safety sheet PDF

All Features

Net volume: 5 l
Un number: Not applicable
Relative density: 0,83
Adr packing group: Not applicable
Physical state: Solid
Adr class: Not applicable
Euh-statements: EUH208
Flash point: 65 °C

Brand TEC7
03203998
EAN 5414195011706
Supplier number TEC7 602050000

Frequently asked questions about this product

Answered by specialists

Which surfaces is this water-repellent agent suitable for?: It is suitable for porous mineral surfaces such as brick, mineral plaster, concrete, sand-lime brick, and porous natural stone.
Does this treatment alter the appearance of the facade?: No, it is white when applied for visual control and dries completely transparent and invisible after penetration.
How many coats do you need to apply?: One thick undiluted coat applied with a roller or block brush provides up to 25 years of protection.
Does the wall remain breathable after application?: Yes, it prevents driving rain penetration while allowing the masonry to breathe.
What area can you cover with 5 l?: A 5 l bucket covers between 20 and 40 m², depending on the porosity of the substrate.