Caulks Caulks can be silicone, acrylic, or latex based adhesives and sealants used in industrial and home construction. Typically high viscosity & shear sensitive. 1124A Cast iron Abrasive resistant sealing option Hardened iron bushings and hardened steel shaft Capacities to 400 GPM 1324A Cast iron Sealless design Capacities to 500 GPM 4124B Cast iron High viscosity sealing options Capacity to 500 GPM
