How to seal interior or exterior concrete with a penetrating sealer

How to seal interior or exterior concrete with a penetrating sealer

This ‘how to’ guide explains how to seal interior or exterior concrete’s with Floorseal Concrete Penetrating Sealer.

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How to make concrete resist water & oil-based staining

Penetrating sealers are subsurface sealers which are absorbed into the pores of the concrete. Penetrating sealers are sometimes referred to as impregnating sealers. Once Concrete Penetrating Sealer is applied to the surface the sealing polymers sink directly into the pores of the concrete, thus sealing from within & without a visible change.

Floorseal Concrete Penetrating Sealer can be applied to concretes after 28 days of pouring/drying & is to be applied in 1-2 coats. The application of the product will harden the concrete increasing its durability & resisting water & oil-based staining. 

Suitable for use on worktops, walls, floors & can be applied to external areas such as concrete pavers, coping stones or cladding. 

Concrete Penetrating Sealer is safe to use in fully wet areas, the sealer will not alter the slip resistance to the treated surface & is breathable.

What are the benefits of sealing concrete with Concrete Penetrating Sealer?

Concrete Penetrating Sealer is a sub-surface sealer, the obvious benefit this is the sealer cannot be seen as it is non-film forming. The sealer will seal the surface without creating a surface lacquer or sheen. The water & oil repellence created is produced from within the pores of the concrete. The concrete will retain its natural/normal appearance after the application of the product. 

This penetrating sealer is suitable for use in fully wet areas, on dense surfaces, highly porous surfaces or application to food preparation areas (as it is food safe). Concrete Penetrating Sealer increases water & oil resistance from within the pores of the concrete, rather than building up on the surface, as a sheen/film or visible layer. It is a versatile sealer, suitable for application in a multitude of different locations such as – Worktops, walls, floors, coping stones, cladding, pavers, paths, roofs, wet rooms, bathrooms, kitchens & more. 

Please check the detailed user instruction on the individual product & product page. Always apply in accordance with the associated Technical Data Sheets which are located on the individual product pages. For quick reference –

• Apply the product and allow it to soak into the surface.
• Methods of application include applying by brush, fluffy roller, paint pad or low pressure garden sprayer.
• Allow approximately 10-20 minutes for the product to soak into the pores of the concrete.
• Blot off any remain excess (liquid which can still be seen on the surface).
• Remove the excess with microfibre cloths or a dry roller.
• Apply again (if required) approximately 40 minutes later.
• Remove the excess as before.

The sealer will cure within the pores of the concrete forming a moisture-resistant barrier (it will should NOT be visible on the surface like a skin/film/lacquer). This sealer will therefore leave the surface with a natural unaltered appearance.

Penetrating sealers are ‘in’ the concrete not ‘on’ the concrete, hence they do not alter the appearance of concrete.

In conclusion

Floorseal Concrete Penetrating Sealer seals concrete floors, worktops & walls. Its application will not alter the appearance of the treated surface. The benefit of using a penetrating sealer is that it cannot be seen, so are described as having a natural matt finish. In fact, they have no finish as they are ‘in’ the concrete not ‘on’ the concrete!

This product is perfect for sealing general concrete, screeds, natural stone, dense or highly porous surfaces. Often when there is no desire to change the level of sheen or colour once the surface when treated. It can also be used for sealing fully wet areas where film forming products are not suitable for use. 

This product resists water & oil penetration & is breathable. This type of sealer can be used for light suppression of dust i.e. hardening the concrete or screed. 

Coverage Rates

Concrete Penetrating Sealer will cover approximately 8m2 per litre. Please be aware that coverage rates always vary depending on the individual porosity of the surface being sealed. Very dense surfaces may only require/accept one application of this product.

Further information

Please Click Here to view our products & accessories for cleaning and sealing concrete. This includes all of our handy ‘how to’ guides for cleaning and sealing interior or exterior concrete.

The information contained in this article is not exhaustive. If you need further information please contact Floorseal or email  info@floorseal.co.uk