Measured (BTU/ft/hr/degrees F), the zinc alloy thermal conductivity for the alloys used at Deco are: (Zamak #3: 65.3) (Zamak #5: 62.9) (Zamak #7: 65.3) (Zamak #2: 60.2) (EZAC: 60-67) (ZA-8: 66.3) For more information look at our Zinc Alloys page.