paint nothing / metal / regular steel / bare metal / Insufficient paint / prepared metal / stainless steel / chemical / paint / exposed metal / paint adhesion / dilute solution / shiny metal / shiny steel / fresh salt solution / petal valve using such tools / paint dry / steel / acid car / local paint store / /
Making Reed Valves Using Electro-chemical Etching By Bruce Simpson http://aardvark.co.nz/pjet