When coating a concrete floor it is important to remove the top surface so the coating will adhere securely. Failure to scarify the surface will result in the coating prematurely peeling. Here are selection of top rated grinders and stones that will come in handy to complete other projects around the home.
Acid etching or renting a large commercial diamond grinder from a local equipment rental store are also a time saving options to floor preperation depending on the condition of your floor.
Here are a couple of videos showing you how to Acid Etch a garage floor and also commercial equipment floor grinding in preparation of floor coatings.
* Always wear appropriate safety equipment including a splach sheild, gloves and resiprator when using muratic acid. *