Desperate for Info: ? Remove old silicone from fibreglass?? Home › Forums › Public Forums › General Plumbing › Desperate for Info: ? Remove old silicone from fibreglass?? This topic has 1 reply, 2 voices, and was last updated 23 years, 11 months ago by Guest. Viewing 1 reply thread Author Posts 23 Feb 2001 at 1:57 pm #274665 MasterPlumbersKeymaster How do I remove old silicone from my 2nd hand fibreglass bath/shower unit????? I’d be grateful for any replies…. 24 Feb 2001 at 12:24 am #290136 GuestParticipant Hi SoozyQ: There is a product sold at hardware stores made by the 3M Company called Chaulk Remover (?) Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In