Waterproofing

13 products

Buy your waterproofing product at the best price from Brikum

In Brikum We know that dealing with a leak in time is a headache, which is why we have selected the best range of waterproofing products on the market so you can protect your home for good. Whether you are a construction professional or a DIY enthusiast looking to get your terrace in shape, here you will find everything from classic fiber-reinforced waterproofing paint to technical waterproofing mortar for pools or basements. We work with leading brands such as Sika, Mapei, Fischer, and Ceys to guarantee long-lasting results. Take advantage of our exclusive offers, enjoy fast delivery within 48-72 hours, and benefit from the guarantee of experts who know every tool and material they sell.

Professional guide to choosing the best waterproofing system

When water decides to enter your home, it gives no warning. At Brikum, we have been advising professionals and individuals for years on supplying renovation materials, and if there is one thing we have learned, it is that there is no universal miracle product, but rather a specific solution for every problem. Choosing correctly between a liquid waterproofing membrane and a cementitious system will make the difference between a repair that lasts ten years and one that fails during the first winter.

Which waterproofing products will you find?

The range is extensive because the requirements of a walkable rooftop are completely different from those of a buried wall or a modern bathroom shower tray. In our online store, we have organized the range so you can find exactly what your structure needs:

  • Liquid coatings: This is the famous waterproofing paint or rubber coating. It is the best-selling option because it is easy to apply: it is used like conventional paint but creates an elastic film that absorbs the building's expansion movements.
  • Cementitious solutions: Here we are talking about waterproofing mortar, ideal for areas where water exerts constant pressure or where we need extreme adhesion on mineral substrates. It is the go-to choice for shower trays before tiling and for facade renovation.
  • Physical barriers: if you are looking for immediate, structural protection, a waterproofing membrane or waterproofing roll format is unbeatable. They are installed beneath the flooring or roof tiles, creating a watertight layer that does not depend on drying times or paint coats.
  • Additives and specialist products: for new construction work, concrete waterproofing is mixed directly into the mix, sealing the material’s pores from within so that the structure is naturally water repellent.

How to determine which one is best for your specific case

To avoid making the wrong purchase, the first step is to identify where the problem is. If you have leaks on a terrace that you walk on every day, we recommend a polyurethane elastic waterproofing product. Its resistance to wear and UV rays is superior to that of basic acrylic options. If, on the other hand, you want to protect a brick wall that absorbs moisture through capillary action, the ideal choice is a transparent waterproofing paint or a water repellent that allows the substrate to breathe while blocking water from entering.

If you want to renovate a bathroom, our professional advice is always to apply a waterproofing membrane under the tiles. Brands such as Mapei and Sika offer ready-to-use kits that prevent moisture from reaching the neighbor below, which is essential in any quality renovation.

Prices and offers in our online store

At Brikum, we understand that budget comes first. That’s why we offer a very wide price range to suit every budget:

  • Quick repair solutions: you can find small tubs of waterproofing paint or repair sprays from as little as 10 euros for those urgent patches.
  • Mid-range and professional: 15- or 20-kg tubs from top brands usually cost between 70 and 120 euros, depending on whether they include reinforcing fibers or are polyurethane-based.
  • Complete systems: The technical waterproofing roll or two-component waterproofing mortar batches for large surfaces require a greater investment, but they ensure professional watertightness for decades.

Which waterproofing product should you choose for what you want to do?

Sometimes, seeing the options side by side is the best way to avoid making a mistake. Here is a summary of our main solutions:

Area to repair

Recommended product

Main advantage

Traffic

Terraces and rooftops

Waterproofing paint (Rubber/Acrylic)

Easy to apply with a roller and very economical.

Occasional (Hanging laundry)

Balconies or areas in use

Elastic waterproofing product (Polyurethane)

Maximum durability and resistance to UV rays.

Frequent (Chairs/Tables)

Showers and swimming pools

Waterproofing mortar (Two-component)

Can be tiled over and withstands water pressure.

Not applicable (Under flooring)

Basements and garages

Waterproofing mortar (Osmotic)

Stops moisture coming from outside.

Very high (Vehicles)

Roofs or beneath construction

Waterproofing sheet (in roll)

Immediate physical barrier with no drying time.

Structural


Why trust Brikum to buy your materials

We are more than just a virtual counter. At Brikum, we are official distributors of the brands you see in our catalog. This means that the product delivered to your home is fresh, properly stored, and backed by the manufacturer. In addition, our team consists of specialists who understand tools and construction materials, so if you have questions about whether that elastic waterproofing product is suitable for your type of tile, we are here to help. Add to this a secure purchasing process and logistics designed so you don't have to stop your project.

Keys to a successful application

Buying a good concrete waterproofing product or quality paint is only the first step. Real success depends on preparation: the surface must be clean, dry, and firm. If the surface is very porous, a primer will help the waterproofing membrane adhere firmly. Always remember to apply the product in crossed coats and respect the drying times between coats; rushing when it comes to water is never a good idea.

FAQs

Can I apply waterproofing paint to a damp surface?

In most cases, this is not recommended, as trapped moisture will prevent the product from adhering properly and eventually cause blisters. However, there are specific formulas of waterproofing mortar which can be applied to slightly damp substrates, especially in basements or elevator pits where moisture is constant.

What is the difference between an acrylic waterproofing product and a polyurethane one?

The main difference lies in resistance and durability. Acrylic is a more affordable and easier-to-apply option, ideal for areas with little foot traffic. The elastic waterproofing product polyurethane is much more robust, withstands standing water better, resists frequent foot traffic, and has a considerably longer service life under intense sunlight.

What is fiberglass really used for in these products?

The fiber acts as a skeleton that reinforces the material layer. By using waterproofing paint with fibers, you are creating an internal mesh that helps bridge small cracks and prevents the product from cracking as the structure moves, often saving you from having to install a separate reinforcing mesh.

Is a sheet or a liquid product better for a large terrace?

It depends on the final finish. If you are going to install flooring on top, a waterproofing sheet in the form of a waterproofing roll is usually quicker to install and provides immediate structural protection. If the terrace will remain exposed and you don’t want to undertake major work, a waterproofing membrane liquid is more practical because it adapts to all corners and drains without joints.

How do I know whether I need mortar or paint for my basement?

For moisture problems coming from outside to inside (negative pressure), the most effective solution is an osmotic waterproofing mortar. This product penetrates the wall’s pores and becomes one with it. Paint is usually a more superficial solution that could eventually peel if the water pressure from the outside is very strong.

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Frequently asked questions about Waterproofing

Can I apply waterproofing paint to a damp surface?

In most cases, it is not recommended, as trapped moisture will prevent the product from adhering properly and will eventually cause blistering. However, there are specific waterproofing mortar formulations that can be applied to slightly damp substrates, especially in basements or elevator pits where moisture is constant.

What is the difference between an acrylic waterproofing coating and a polyurethane one?

The main difference lies in their strength and durability. Acrylic is a more affordable and easier-to-apply option, ideal for low-traffic areas. Polyurethane elastic waterproofing is much more robust, withstands standing water better, resists frequent foot traffic, and has a considerably longer lifespan under intense sunlight.

What is fiberglass really used for in these products?

The fibers act as a skeleton that reinforces the material layer. By using waterproofing paint with fibers, you create an internal mesh that helps bridge small cracks and prevents the product from cracking as the structure moves, often saving you from having to install a separate reinforcement mesh.

Is a sheet membrane or a liquid product better for a large terrace?

It depends on the final finish. If you’re going to install flooring over it, a waterproofing sheet in roll form is usually quicker to install and provides immediate structural protection. If the terrace will remain exposed and you don’t want to carry out major work, a liquid waterproofing membrane is more practical because it adapts to all corners and drains without joints.

How do I know whether I need mortar or paint for my basement?

For moisture problems coming from outside in (negative pressure), the most effective solution is an osmotic waterproofing mortar. This product penetrates the wall’s pores and bonds with it. Paint is usually a more superficial solution that could eventually peel if the water pressure from outside is very strong.