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 ...

Open-cell insulation costs between ... but unless you buy one of those DIY spray foam insulation kits, the largest by far is the cost of labor. Depending on your market, labor for a typical ...