paint stripper
US /ˈpeɪnt ˌstrɪp.ər/
UK /ˈpeɪnt ˌstrɪp.ər/

1.
a chemical product designed to remove paint, varnish, or other coatings from surfaces
:
•
He used paint stripper to remove the old finish from the wooden chair.
•
Always wear protective gloves when handling paint stripper.