Check the listing for details. Blaster 16PB Penetrating Catalyst Fluid - 11oz Cans - 3 Pack. Condition: New. Listed at 31.50 USD. BEST SELLER - The #1-selling penetrant since 1957! The PB B’laster outperforms leading competitors with its high-performance formula. EFFECTIVE - PB B’laster quickly busts loose rusted or frozen parts caused by rust and corrosion. Attack rust from all angles using the unique capillary action. SAVE TIME - This fast acting penetrant also contains a non-evaporating lubricant that saves time and equipment. It makes rusted nuts and frozen bolts a struggle-free job. Don’t worry about the future, PB B’laster also protects against further rust and corrosion. MULTIPLE USES - Rust can build up in many places. Use the the PB B’laster on car parts, fishing reels and tackle, all tools, firearms, sports equipment, marine applications and more.