Nail coatings Any product used to coat a finger or toe nail for strength or to add length and/or colour. Related Articles: Glossary: ExothermicThe Complexity of Curing UV Nail GelsUV cured nail coatings are the most technically sophisticated and complex products in the beauty industry...Do your nails need to breathe?Do your nails NEED to breathe? NO!!! Glossary: Heat spikeGlossary: Acetone