Posted 2009-01-26 4:19 PM (#98275 - in reply to #98274) Subject: RE: removing old caulking
Expert
Posts: 5870 Location: western PA
Sikaflex is an excellent marine polyurethane adhesive/caulk. Because it is so durable, it is difficult to remove. A narrow sharpened putty knife, or a utility knife can be used to cut it off. I've had some luck softening it with an industrial heat gun, but it gets too hot if you're near fiberglass.
Posted 2009-01-26 5:07 PM (#98281 - in reply to #98274) Subject: RE: removing old caulking
Extreme Veteran
Posts: 420 Location: Florida
Check the local HW there are products that claim they remove the old Caulk. You do not have to remove it all to reapply. Like the G man says above a hairdryer, putty knife or plastic scraper will help.
Posted 2009-01-26 10:41 PM (#98292 - in reply to #98274) Subject: RE: removing old caulking
Extreme Veteran
Posts: 383 Location: Texas
If it's on steel a wire brush on a grinder should work. That stuff is going to be hard to get off no matter what.... it's not like regular caulking, more of a glue.
Posted 2009-01-27 12:29 AM (#98294 - in reply to #98292) Subject: RE: removing old caulking
Expert
Posts: 2953 Location: North Carolina
Originally written by greyhorse on 2009-01-26 10:41 PM If it's on steel a wire brush on a grinder should work. That stuff is going to be hard to get off no matter what.... it's not like regular caulking, more of a glue.
I recaulked my Sundowner. Removed the Sikaflex from an aluminum roof with a twisted wire cup brush in a 4 1/2 inch side grinder. It takes a light touch, wear leather gloves + eye protection.
removing old caulking
