Castaldo® Super High-Strength 9.52mm Silicone Mold Rubber Strips, 2.27 kg. Safety Equipment 162 ounces)

162 ounces)

This marking stamp reads "Sterling" in script font

Formulated specially by Rio Grande for hydrogen welding

holding the ring in place and creating a secure connection for your customer’s treasured ring

A handy retainer on the upper jaw catches and holds the cut piece of cord or wire to keep it from flying off

Castaldo® Super High-Strength 9.52mm Silicone Mold Rubber Strips, 2.27 kg. Safety Equipment 162 ounces)This Castaldo Super High Strength silicone mold rubber strip has a medium hardness with extreme tear and tensile strength. It's a general purpose rubber, and works well for spirals, cores, plug and cut outs. No release agent is required with this mold rubber, and shrinkage is just 2. 3%. Castaldoknown throughout the jewelry industry for performance, dependability and valuemanufactures mold rubber trusted the world over. Sold in a 5 lb. pack.