Show how to etch glass A simple way ay to etch glass is 19 to warin it carefully if heated too rapidly it will crack rub nub par tiffin or beeswax wit 0 over er the warm warin surface of tile alie glass and then alien with t a blunt instrument print the lie desired wording voiding to some soine calcium fluoride III a cc d in a met al add enough con centi sited sulphuric sulp hurle acid to moisten ni the po powder place the glass avith ith the marked side down ove over r tile the metal dish tile the above chemicals and leave it over night in the morning I 1 serape scrape tile paraffin off ail and d tile the desired words will be etched on tita glass |