Why Use a Concrete Basement Sealer?

If you do not use a concrete basement sealer on the walls and floors of your room, then it will inevitably be liable to dampness. Dealing with damp after it has occurred is much less preferable than preventing the issue in the first place. So, if you want to know how to seal a concrete basement floor, want to find out how to seal concrete block basement walls or to simply understand basement concrete sealer products better, then read on.

Should I seal my concrete basement floor?

Firstly, asking yourself, should I seal my concrete basement floor or walls? is a bit of a no-brainer. Whether you do so or not, the soil beyond the retaining walls and floor will eventually become wet due to rainfall. Since concrete is porous, some of the water in the surrounding soil will come into a your basement leading to damp, mould, spores and even standing water in the worst cases. Sealing them is, therefore, essential to avoid such problems.

How to seal concrete basement walls

The question can I seal basement concrete myself? is easy to answer because a good concrete basement wall sealer can be applied just as easily by any DIY enthusiast as a professional. You simply spray it on at low pressure. Anyone can do it whether they have previous experience with concrete sealants or not. Can I seal basement concrete without worrying about the spray? is, perhaps, a more important question. With Oppercon concrete sealer, you won’t have to worry because it is non-toxic and can be applied without any issues whatsoever.

How to seal concrete block basement walls

Oppercon Fluid penetration
Waterbeads on concrete

Absolutely, without any delay, do it as soon as possible. As we mentioned earlier, there are pores in concrete. No matter how smooth it is, it will absorb and retain water droplets and attract dust. It will result in algae growth and cause seepage. A Concrete patio sealing will fill those pores and form a protective layer on your patio surface and keep it protected for years to come. It’s the best investment you can make.

What is the best sealer for concrete?

So far, you have learned how to seal basement concrete walls. Of course, knowing how to seal concrete basement walls with a spray-on sealer is important to avoid damp coming in at the sides, but you will also need to know how to seal concrete basement floor to remove any possibility of water ingress.

With Oppercon, as your choice of concrete basement sealer, knowing how to seal concrete basement floors is just as easy as sealing the walls. Simply apply the Oppercon concrete sealer to the furthest parts of the floor with a low pressure sprayer and work your way back methodically towards the exit. This way, the Oppercon sealer will dry out thoroughly before you need to step on it again, thereby ensuring top-quality results.

So, what is the best sealer for concrete basement floors? It is Oppercon every time.

Which features should you look out for?

Oppercon natural stone waterproofing

Now you know how to seal basement concrete wherever you need to apply it in our basement, it is worth examining the properties of Oppercon a little further to see why it is so well-regarded in this role. Firstly, it offers no discolouration after an application. It is not harmful to people or pets and will help to prevent the growth of moss, limescale and other types of fungal growth. What’s more, Oppercon concrete sealer is guaranteed to last for 15 years so it is extremely cost-effective over the course of its lifespan. You can use Oppercon Sealer on concrete driveways and a concrete patio too.


Now you know everything there is to know about the best sealers for your basement. The only thing left to do is use our calculator so you can get an estimate of how much you need of our Oppercon Sealer. Or you can calculate this yourself. Remember you only need 1 liter for 88 ft².

Act now, don’t delay. Order Oppercon Concrete Sealer Now. 1 Liter Oppercon can cover up to 88 square feet of concrete. It is waterproof, comes with 15 years of Guarantee and can withstand Snow, Ice and deicing salts.


  • Very economical: depending on the porosity an average
    1 liter is sufficient for 88 ft².
  • Available in  1 / 2,5 / 5 / 10 / 25 Liter.