When re-caulking a bathtub or shower, be careful with acrylics and use a scraper or plastic spatula. Re-caulk a bathtub or shower by using a caulk gun with tips from a construction specialist in thisfree video on home repair and maintenance. Expert: Oscar Moreno Contact: www.morenohomevisions.com Bio: Oscar Moreno is the owner of Moreno Custom Home Visions in Austin, Texas. Filmmaker: Todd Green