PB B'laster, the trusted penetrant since 1957, introduces the innovative B'laster ProStraw. This new addition boasts our legendary formula known for quickly loosening rusted or frozen parts, now upgraded with Control Flow Technology. This enhancement allows for precise volume control during application, ensuring optimal usage. Additionally, it maintains the non-evaporating lubricant, saving time, equipment, and protecting against ongoing rust and corrosion. With our continued dedication to quality, the ProStraw solidifies its position as the top choice for professionals and enthusiasts, offering unmatched performance and convenience for over sixty years.