Sal ammoniac, also known as a tinning block, quickly cleans away the residue that accumulates on the tip of your soldering iron. A clean, well-maintained iron tip is essential for good soldering. Sal ammoniac will also help re-plate and re-tin worn soldering iron tips. Regularly using a tinning block can enhance the life of soldering iron tips and the quality of your soldering. A medium block will last most glass enthusiasts a lifetime! Sold in 8 ounce blocks.

Using a tinning block to clean and re-tin the tip of your soldering iron after each use:

1. Make sure your soldering iron is fully heated.
2. Stroke all sides and edges of the hot soldering iron tip across the surface of the sal ammoniac block. After repeated use you may work grooves into the block. Continue to use these grooves to catch the rounded edges of the iron tip.
   
3. Some fumes and/or smoking may occur while using a hot iron tip on the tinning block. Please consider working in a well ventilated area.