Make your concrete permanently waterproof

Permacon is a water-based, odourless, non-toxic, non-flammable liquid. That is easily applied with low-pressure spray on all types of concrete and stone (use a paintbrush / brush for smaller areas).

For use on all types of stone and concrete!

Concrete (new and old), brick, stone, limestone, plaster, terracotta, paving floors, walls, screed, and much more!

  • Very economical: 1 liter is sufficient for 4 m2. 
  • Life long guarantee.
  • Available in 1 / 2,5 / 5 / 10 / 25 Liter.
Quantity discounts - per 25 liter jerry can
1 2-3 4+
£245,13 £220,62 £208,36


Permacon: Specifications and features

Permacon makes concrete permanently waterproof. It makes your concrete permanently impervious and free of algae and mold.


  • Promotes density, strengthens and hardens the surface.
  • Helps concrete to harden evenly during curing and prevents cracks.
  • Makes concrete waterproof.
  • Extends the durability and life of concrete.
  • Prevents rising water.
  • Prevents algae, fungi and moss attaching to the surface.
  • Prevents dust and carbonation loss.
  • Prevents freeze / thaw damage and penetration of oil, grease, acids, etc.
  • Paintable (with any type of surface finish).
  • Water based.
  • Resists hydrostatic pressure.
  • High alkalinity and acid resistant.
  • Non-toxic, human and environmentally friendly.
  • Available in 1 / 2,5 / 5 / 10 / 25 Liter.

Permacon can be used on:

Waterproof concrete with Permacon


Make brick water repellent with Permacon


Algae and moss free paving with Permacon


Natural stone water repellent with Permacon

Natural stone

Impregnate terracotta with Permacon


Impregnate stones with Permacon


Permacon prevents:

Permacon prevents penetration of fluids

Fluid penetration

Permacon prevents rising damp

Rising water

Permacon - prevent carbonation


Permacon prevents oil and grease stains


Permacon prevents limescale


Permacon prevents algae and moss growth


Impregnate concrete with Permacon
Permacon makes concrete waterproof
Make concrete waterproof with Permacon
Permacon makes your concrete floor 100% waterproof


Very knowledgeable customer service:
Call +31 (0)40 231 04 52

Ordered before 12:00,
dispatched the same day.

The best products for waterproofing,
in and around your home.

Pay safe and fast with

Permacon: application

What Permacon does:

Permacon ensures that the first 1 inch from the surface is saturated with an insoluble gel.

The gel is composed almost entirely of water, Permacon fills the capillary pore system of the surface. The same way water does, but without the negative side effects of water. Permacon does this in a stationary, non-liquid form. Through the presence of Ca (OH) 2-, free inert silicates and alkali Permacon will reinforce and saturate the capillary pore system permanently.

Permacon stops the process of water migration in concrete in which all suspended solids are made ​​immobile, this also applies in any of the concrete itself contained harmful substances such as chlorides, sulfates and other pollution of various kinds.

Ions cannot move or evaporate in or from the concrete, neither from the gel itself or within. Neither diffuse or move throughout the concrete in some form or another. The full saturation of the capillary pore system within the concrete itself, will resist high hydrostatic pressure so displacement of the material cannot be induced.

The result is a water-saturated surface with full protection, but without the disadvantages of liquid water. Permacon makes concrete solid, immovable and impenetrable and with a near-normal water vapour permeability. The material continues to “breathe” so the vapour permeability is maintained, proper water management is ensured in this way. Permacon guarantees a longer aesthetic and practical durability of concrete material and structures made ​​thereof.

After the Permacon treatment, you can finish the surface with a coating of your choice. However, this is not necessary for the durability of the concrete.


How Permacon works:

Permacon penetrates the concrete from the surface and reacts with the free alkali material and water. This reaction forms a gel-like substance which saturates the capillary pore system.

The free alkaline substance, will become an integrated and permanent part of the concrete structure. On a permanent high alkalinity, partly chemically and partly physically, Permacon makes the concrete permanent water- and acid proof.

Permacon has the same coefficient of expansion as concrete itself. Despite the water the concrete will not expansion at freezing temperature, it moves with the concrete.

Permacon is highly alkaline, highly acid resistant and has no silicone or any petrochemicals. It is fully human and environmentally friendly, it contains no solvents but water. This important characteristic, that contributes to the unique formula that gives concrete a permanent protection.


How to use Permacon:

Apply two sprays/layers of Permacon with a low pressure sprayer with 2-6 hours in between the first and the second application.

For treatment, the surface needs to be completely stripped of organic debris or pore-sealing layers as paint or other obstructive material which could stop Permacon from penetrating the surface.

On hot days the concrete will be hot as well, so on these days we recommend to apply a water spray before you apply Permacon. Then wait until the surface is dried up again (you can see this easily enough by looking at it), then start with the first Permacon application.

  • How to apply:
    Spray with a low-pressure nozzle untill the surface gets smooth without wet spots or drippers. Permacon penetrates the surface structure by itself ( the surface tension of Permacon is practically zero).
  • The second layer:
    The moisture content of new concrete -when it has sufficient ripeness but hasn’t hardened completely- is relatively high. In that case the second spraying should be applied 4-6 hours after the first in exactly the same manner.
  • At high temepratures:
    In case the concrete is very dry, if there is a lot of wind or it is very warm we recommend to apply an extra spray of pure water in between or afterwards. An extra spraying can be applied once the surface is hand dry.Permacon is water based and nontoxic, not flammable nor dangerous in any way. But it does degrease the skin that may feel chapped. We recommend wearing rubber gloves and to avoid long skin contact. The product may irritate eyes like a hand soap would do. In case you spray on shoulder height or higher we recommend wearing goggles that fit well.
  • Coverage:
    We recommend two sprays with Permacon. One spray covers approx. 8 m2. Applying the product twice brings the average on 1 liter per 4 m2.
  • Preparation:
    The surface needs to be clear of organic materials and pore-sealing layers like paint or other obstructive materials.It is no problem to apply Permacon on a moist surface. On a wet surface the application can be a bit more difficult: it may be hard to see what parts have been treated already.
  • Rain:
    If you can avoided it would be better, but It’s not an problem when it rains after the application; Permacon disperses quickly in the surface and will therefore not be washed away. The actual reaction within the capillary pore system will continue.Permacon has hardly any surface tension and it will disperses into the concrete quickly. The capacity without extra pressure from the outside to penetrate the concrete at its own power, is one of its characteristics.


Use how much Permacon:

1 liter Permacon is sufficient for an average of 4 m2.


The difference between Permacon, Oppercon and Cementmix:

Permacon can be applied to any cementitious surface (concrete, stucco, concrete bricks, stone bricks, marble, gypsum or porous natural stone etc.). Its simplicity as for the application techniques, makes it most convenient for the treatment of walls, floors, ceilings and any structure made with these materials, in any form and size.

Permacon is very suitable under hydrostatic pressure for concrete ending up underneath the soil, like basements, foundations, sewage pipes, tunnels or with floor heating etc. after you’ve applied Permacon. Unlike Oppercon, which is a repellent agent, it’s possible to add a finish paint, cement or any kind of finish you wish. Guaranteeing a perfect, durable and waterproof surface.

Oppercon is a surface treatment repellent agent for concrete, stone and stony materials.
Without leaving any visible trace of its presence, it will, unlike Permacon, make the surface of these materials waterproof, water repellent and UV-resistant. Because of its repellent properties, it means that a finish, like paint, cement or any kind of finish is not possible. The Oppercon treatment should be repeated after 15 years.

Cementmix replaces water and makes all kinds of cement, concrete, self-leveling mortar etc., through-and-through water- and liquid proof. This applies to both the surface, as for the underlying layers. Any finish like paint, cement or any other kind, is not possible. The treatment is permanent.


Also see our frequently asked questions.

Permacon can be used on:

  • Concrete (new and old)
  • Brick
  • Concrete / Concrete tiles
  • Gypsum
  • Lime Sand Stone
  • Natural stone
  • Terracotta


Permacon can be used for:

  • Paving
  • Balcony
  • Screed (concrete screed, floor)
  • Garage / Basement (concrete floors and walls)
  • Floors / walls that are subject to liquids such as oil, gasoline, etc.
  • Swimming pools and fishing ponds


Do you have any questions?

Would you like advice about this product?
Our expert customer service is there for you!

We are available on working days between 09:00 – 17:00.
 +31 (0) 40 23 10 452



There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.