Bathroom Remodeling. A Precision-fit Acrylic Liner Is An Exact Mold Of Your Current Bathtub; It's Formed From The Thickest Acrylic In The Industry. The Tub Mold, Then Gets Bonded Permanently To Your Old Tub With Our Exclusive Patented-applied For Process. This Ensures Years Of Beauty, Scrub-free Maintenance And The End Of Chipping