| Baked Strength | (english) Compressive, shear, tensile or transverse strength of a mold sand mixture when baked at a temperature above 231 B0F (111 B0C) and then cooled to room temperature. |
| Band, Inside | (english) A loose steel frame placed inside a removable flask to reinforce the sand at the parting line after the flask has been removed. |
| Bar, Flask | (english) A rib in the cope of a tight flask to help support the sand. |
| Bedding | (english) Sinking a pattern down into the sand to the desired position and ramming the sand around it. |
| Bedding a Core | (english) Resting an irregularly shaped core on a bed of sand for drying. |
| Bench-Blower | (english) A small core-blowing machine, utilizing a removable sand magazine and blow heat. |
| Bentonite | (english) A colloidal clay derived from volcanic ash and employed as a binder in connection with synthetic sands, or added to ordinary natural (clay-bonded) sands where extra strength is required. |
| Blackening Scab | (english) A form of casting defect related to an improper coating rather than to the sand. |
| Blast Cleaning (blasting) | (english) A process for cleaning or finishing metal objects by use of an air jet or centrifugal wheel that propels abrasive particles (grit, sand, or shot) against the surfaces of the workpiece at high velocity. |
| Burn-On-Sand | (english) Sand adhering to the surface of the casting that is extremely difficult to remove. |