Protective clothing is always a good idea even though this is a solvent free epoxy coating.
Some people have a resin allergy or sensitivity.
Coveralls, rubber or latex gloves and eye protection are a must. A face mask or respirator may be needed if you are sanding and removing old paint. Please refer to the MSDS provided. Protect the work area from contamination of the environment around you as well as keeping overspray away from your work. If the bottom paint is sloughing or ablative type it needs to be removed.