Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Magic Ameriacn Tub Caulkstrip

I used spade to remove old caulking from the seam, vacuumed the area and wiped it clean with rubbing alcohol. After installing the Magic American Tub Caulkstrip, I waited 12 hours, per the instruction, before using the tub. The caulkstrip would came off within a few weeks.