Concrete Pavers

Sealing Concrete Pavers

Sealing Concrete Pavers. A quick search will reveal that there are a thousand suggestions on what is the best sealer for your concrete. I hope this very brief overview will help make choosing a concrete sealer easier (In particular a Concrete Paver Sealer)

1. Penetrating Silane based. Theses are very watery, shake the tin and you should be able to tell. They do a pretty lousy job at preventing dirt and grime build-up and do little to stop wear and tear. They do however do an exceptional job at stopping water penetration whilst remaining breathable. Silane Sealers are a perfect candidate for areas that are constantly wet and always seem to attract lichen buildup. These products are generally water based, will require additional coats every year and are very expensive. If you have a wetcast concrete paver then this isn’t a bad choice. A cast paver generally has a glassy, shiny finish and will not show dirt as much as a dry pressed paver. If applied shortly after your pavers have been laid the silane sealer will reduce efflorescence and lichen or moss growth.

2. Solvent based Acrylic: Best suited for stone products, not concrete. They will penetrate better than Water Based Acrylics and as such you will need to apply more coats to prevent dirt build-up. Use a solvent based acrylic sealer if you have the money, the time, don’t mind the smell and don’t mind a slight colour change. They are a great choice to prevent wear and tear, prevent efflorescence and lichen or moss growth.

3. Water based Acrylic: To prevent dirt and grime build-up and to stop wear and tear this is your best choice. To achieve any decent penetration with a water based acrylic you will need to water it down and aggressively brush it in. A final heavier, or neat topcoat will provide the barrier to dirt and grime.

4. Water Based Acrylic that incorporates a Silane. These are perhaps the best at preventing Efflorescence, Dirt and Grime build-up and offer decent protection against wear and tear. They will generally be more water resistant than a straight acrylic and will thus eliminate moss growth. This is your best overall choice for a Concrete Paver Sealer. Much like the water based acrylic, you will need to water it down and aggressively brush it in. A final heavier, or neat topcoat will provide the barrier to dirt and grime.

A Concrete Sealer product that mentions some or all of the following words/phrases should help you make a decent choice: Water based, Reduces Wear and tear, Water down the first coat and apply a neat final coat, Water Repellent, Reduces Efflorescence, Non Yellowing.(By: Matthew A Monro)

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