Designed to accommodate range of flexographic printing applications, Series R/bak SA 3000 open cell polyurethane mounting tapes come in 15 and 20 mil and provide cushioning needed to absorb shock. Soft R/bak SA 3100 is intended for combination jobs with demanding halftone process and fine screen work, while medium R/bak SA 3300 is designed for combination jobs with screen, line, and solid work. Firm R/bak SA 3500 addresses combination jobs with bold lines and solids with darker screens.