Alumdum Balls 1 1/4" size Alumdum Balls For Endothermic Generators Alumdum Balls are a very dense untreated catalyst with extremely high thermal shock. The material is practically indestructible. They are typically 1 ¼” diameter and have a loading density of 95 lbs. per cubic foot. Pricing $3.50 per pound (no minimum order) Click Here To Order MSDS Duffy Products Alumdum Balls eliminate sooting and disintegration of catalyst at the entry point. Low temperature causes nickel catalyst to soot and disintegrate due to the chilling effect of the cold air-gas mixture. Alumdum Balls will add more life to your catalyst because it acts as a buffer zone to preheat the incoming air-gas mixture. A 6 – 8” layer should be placed at the point of the incoming air-gas mixture where the heating zone starts. A small investment in Alumdum Balls will extend your catalyst life.

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