Yahoo Groups archive

Homebrew PCBs

Index last updated: 2026-04-28 23:05 UTC

Message

Homebrew etching chemicals

2012-11-23 by pauldebono@rocketmail.com

What is the exact formula for making an echant, using hydrogen peroxide, sulpheric acid and distilled water please. Or has there been others ?

Attachments

  • No local attachments were found for this message.

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.