Back Home / Electrical / Solder Products / SOLDER ACID CORE – STANDARD 1 LB SOLDER ACID CORE – STANDARD 1 LB SKU: SAC1 Categories: Electrical, Solder Products General use solder. Acid core for plumbing applications. 1/8” diameter. 1 pound spool. General use solder. Acid core for plumbing applications. 1/8” diameter. 1 pound spool. Case Quantity: 1 Log In For Pricing