PURPOSE: To provide the titled etching paint with excellent water repellency obtained by mixing an electroconductive fine powder such as graphite powder or silver powder, fluorinated graphite, a thermosetting high-molecular material and a solvent.
CONSTITUTION: 20W60wt% of (a) an electroconductive fine powder such as graphite powder or silver powder with a particle size of 0.1W60μ or cabon black powder with a particle size of 0.1μ or less, 0.1W5wt% of (b) fluorinated graphite with a particle size of 0.1W60μ, 5W30wt% of (c) a thermosetting high-molecular material such as a resole type phenolic resin obtained by an alkali catalyst, a novolac type phenolic resin obtained by an acid catalyst, polyimideamide resin or a silicone resin and, moreover, 15W70wt% of (d) a solvent such as benzyl alcohol, dimethylformamide or toluene are dissolved by mixing and uniformly dispersed to obtain the titled etching paint having a specific density of 0.9W1.9 and viscosity of 100W1,000 poises.
SHIBA HIROSHI
KOMAMURA SAICHI
