How To Seal A Granite Countertop

Posted on: 24 July 2017

Granite countertops provide a natural and luxurious appearance to your kitchen or bathroom, but like all countertop surfaces, can be susceptible to wear and tear due to general usage. In order to keep your granite countertop looking as good as possible, it needs to be sealed to protect it against the elements. Thankfully, with a few simple tools, you can seal your granite countertop yourself in just a few hours.

Before You Get Started

Gather all of your tools and materials before you begin so that the process goes both smoothly and quickly. You'll need lint free rags, a spray bottle, rubbing alcohol, household cleaning detergent, granite sealer, and a pair of rubber gloves. You can get all of these things at most hardware stores if you don't already have them in your house.

Sealing Granite Countertops

First things first, you should clean the surface of your granite countertops at least 24 hours before you start the sealing process. This removes any contaminants which may affect the seal. Make a mixture of one tablespoon of detergent, two tablespoons of rubbing alcohol, and warm water in a spray bottle, and liberally spray down the entire surface. Use the lint free rags to rub down the counter in a circular motion to avoid streaking.

Once the cleaning solution has been applied and has completely dried, you can begin the sealing process. Make sure that you have enough ventilation in the area that you are working in, as the fumes from the sealant can be harmful if inhaled in large quantities.

Follow the instructions on the sealant when applying it to your counter: it's a good idea to take a small amount of the sealant and pour it onto a rag, and then apply it to a place on your countertop that is usually covered by an appliance to make sure that it does not cause discoloration or damage to the material.

As long as there has been no visible damage to your countertop, you can then apply sealant to the entire surface. Rub it into the countertop in a circular motion, working in slow and even motions across the entire surface. Let it sit for the recommended period of time (usually half an hour, but check the can for specifics) before taking a dry rag and wiping up any excess sealant on the counter.

Then, all you have to do is wait the recommended amount of time for the sealant to cure before you can start using your counters as usual. Again, check the can for specifics, but a general rule of thumb is to wait at least two days before putting anything on a newly sealed granite countertop.