Half a gallon of wood glue, a pile of random, scattered resistors, or in [Ken]’s case, closed-cell silicone foam. Wanting to avoid this situation he set about trying to make his own silicone ...
Alusion™ Stabilized Aluminum Foam (SAF) is buoyant ... 4’ x12’) ALFG-12.7-LM Natural also available – With cells closed is also available in thicknesses of: 12.7mm & 25.4mm ...