There is one foolproof method to ensure your safety from epoxies and other potentially harmful chemicals. Let a professional do the job for you. Many excellent small businesses specialize in epoxy applications for both commercial and residential applications.
If you are looking to have a concrete surface sealed, and have a decorative touch added such as chip flakes, a professional can help you do this job and get it right the first time. If you try to do an application like this yourself and make a mistake, you will make it more difficult for the professional installer to correct, and it may cost you more money.
If you have a large job and have little experience in working with epoxy, we strongly suggest you not take on this work yourself. Leave it to the pros for the best possible results.