What is the difference between sanded and unsanded grout?

The main difference between sanded and unsanded grout lies in the durability and bonding of the grout. Sanded grout has a natural bonding quality due to the way in which the sand particles are bound together, naturally forming a tight lock. This makes sanded grout more durable, although it does have to be sealed in most cases. Unsanded grout on the otherhand does not form such a tight lock and is therefore susceptible to wear over time. Unsanded grout does...
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