I purchased an 8 oz squirt container of 3M Caulk Remover - Softens caulk fo
r easy removal - to use on the caulk around my bathtub surround where it me
ets the bathtub. Cost at Menards was $4.49 plus tax. The label behind the
back stick-on label claims it will work on ALL TYPES of caulk, sometimes i
n 2 hours, sometimes in 7 or more hours.
The caulk I am attempting to remove is old white silicone rubber caulk.
It did not work even in 12 hours. Application was simple with the squirt c
ap. I did about a 5' section, and went back at 2, 4, 6, and 9 hours. I co
mpared how easy it was to dig my razor-like scraper into the treated caulk
with how easy it was to dig into the untreated caulk. No discernible diffe