Hot Block SolderWeld

Product Information


Hot Block | Heat Absorption Putty

Hot Block is a flexible, formable putty-textured for protecting HVAC and plumbing pipe, valves, components and surfaces from damaging heat conduction, transfer and sparks during brazing, soldering and welding.

Hot Block guarantees you:


  • It’s 100% reusable (easily rejuvenated with a spritz of water);
  • Protects copper, aluminum, steel and all other pipe and component materials;
  • It is safe to use in all surfaces;
  • It prevents nearby drywall or wood from igniting, existing fitting joints from unsoldering or flange bolt/nut threads, valves and sensitive equipment from residual spark damage;
  • Price is less than the cost to replace an expensive component left unprotected during a nearby brazing.

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