A top coat is the clear layer painted over colour to protect it. Add a top coat, a quick-dry top coat.
It takes the wear so the colour underneath does not, and it adds the shine. A fresh top coat every few days is what makes a manicure last a fortnight.
1nountop coatThe clear layer painted over colour to protect it.
“A top coat every third day kept the polish looking new.”
top coat is a layer.
topcoat comes from top + coat.
Etymology from Wiktionary, CC BY-SA
Practised in Beauty & Cosmetics