4.8-ounce tube of desitin maximum strength diaper rash paste with 40% zinc oxide works on contact to treat and prevent diaper rash discomfort Rich, thick diaper rash cream is formulated with 40% ...

This creates spots of zinc oxide on the strip, which can then be contacted by the ‘cat’s whisker’ contact. In the circuit, the clock is created by the 4 MHz crystal and a 10 kOhm ...