SolderWeld Hot Block (SW-HB1) is a professional-grade, reusable heat-absorption putty designed to protect sensitive components during brazing, soldering, and welding. Formulated to block up to 3,000°F of direct heat.
⚠️ California Proposition 65 Warning
Some products sold on this website can expose you to chemicals including nickel, chromium, and other substances known to the State of California to cause cancer and reproductive harm.
For more information, visit www.P65Warnings.ca.gov
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