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Why seal concrete? Print E-mail
Concrete is a porous material.We normally think of concrete as the solid substance that it is.  What you don't normally appreciate is that concrete is actually a porous substance which will readily accept liquids.  Think of it as being like a sponge.

These liquids include undesirables such as vehicle oil (driveways) and fats and greases (from barbecues) as well as general grime.  Once these liquids have absorbed their way in to the concrete it is very difficult to get them back out.  By sealing your concrete you prevent them from getting in to the pores of the concrete in the first place.

In view of the considerable expense of getting concrete work done, it is a wise investment to have a sealer applied and protect the appearance of your investment.

Fresh concrete is a good opportunity to seal.One of the features of a sealer is that it changes the surface characteristics so that water will not 'wet' the concrete but beads and rolls away instead.  This will be of great benefit in preventing what is known as "concrete cancer". 

Concrete cancer is where water over time causes calcification which in turn weakens the concrete.  The only way to repair this is to dig out the affected area and replace with fresh concrete.  The problem is even worse when the steel reinforcing in the concrete also rusts as a result.

Whilst Concrete Guard will not protect against water that is being forced in to the concrete under hydrostatic pressure (think of the water in a concrete pool), it will prevent surface water soaking in.