How to Seal A Concrete Countertop

Concrete Countertops are very porous like a sponge and the purpose of a sealer is to provide an internal protective barrier that will protect the surface from stain and water intrusion.

There are three main types of sealers available which are ; 

  • 1-Reactive Densifying and Hardening Sealers
  • 2-Impregnating Water and Stain Repellent Sealers
  • 3-Decorative Gloss or Satin Finishes 

1- Concrete Sealer X-1 and Concrete Sealer X-2 are permanent densifying and hardening silicate based deep penetrating sealers which means they are guaranteed to last for the life of your concrete countertop because they chemically bond to the concrete to become an part of its integral structure. They are highly effective in making your concrete countertop physically stronger and denser, protecting it against dusting, efflorescence and stains from acids like vinegar, lemon juice, mustard, oils greases and cooking oils. 

2- Concrete Sealer X-3  is a water based special blend of polysiloxanes/silanes which crosslink below the surface of the concrete making the concrete surface water and stain repellent allowing spills to be removed more easily. This sealer can either be applied alone or on top of Concrete Sealer X-1 or Concrete Sealer X-2 to provide double protection of the concrete with both deep sealing and a repellent finish.

3- For Decorative Coatings –  You should make sure that your concrete is absorbent by placing a droplet of water on the surface of the concrete. If it absorbs within 20 seconds then you can  apply the sealers. If it does not then you should either acid etch or diamond grind the surface to open up the pores before sealing.  We do not recommend that you use these sealers with the any of the above products. We recommend two applications of Concrete Sealer X-4 to provide a gloss finish on concrete counter tops and for a satin or semi-gloss finish use Concrete Sealer X-5.

 

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