The Generation IV Magma crack sealer is available in 150-, 230-, and 410-gallon sizes. It features AutoStart, which informs operators of ready-to-seal status, and digital flow control, which provides smooth, even material flow no matter what sealing tip is required. The low-profile design makes loading sealant blocks a no-reach task. No-splash doors prevent accidents on the job when sealant is loaded into the oil-jacketed kettle. Cimline Pavement Maintenance Group.