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This is an interactive Bulletin Board on the topics of Sign making, design, fabrication, History, old Books and of coarse Letterheads, Keepers of the craft. The Hand Lettering Forum features links to resources, sign art history, techniques, and artists profiles. Learn more about Letterheads at https://theletterheads.com. Below you'll see Mchat has been added as a live communication portal for trial, and the Main forum Links are listed below.

Search found 7 matches

by mgking
Wed Mar 16, 2011 10:16 am
Forum: The Hand Lettering Forum
Topic: Tin Mirrors
Replies: 5
Views: 3797

Re: Tin Mirrors

Hi, Dinora. The old mercury mirrors were in fact tin mirrors where the tin was dissolved in mercury to make a sticky shiny alloy which with mercury is called an "amalgam". This was pressed onto the glass surface with heavy weights for a long time until it stuck. Over time (like about a cen...
by mgking
Sun Dec 19, 2010 10:17 am
Forum: The Hand Lettering Forum
Topic: Zinc Nitrate in the making of whiter Mirrors
Replies: 5
Views: 3381

Re: Zinc Nitrate in the making of whiter Mirrors

From the chemist: The chemical properties of zinc make it very unlikely that it will be displaced from solution to form elemental zinc which would be shiny if produced at the right rate. The same is true of aluminum which is why both of these metals are used to protect other metals like iron. Adding...
by mgking
Wed Jan 13, 2010 8:31 pm
Forum: The Hand Lettering Forum
Topic: Organic vs Inorganic Reducers Tollens reagent
Replies: 10
Views: 13163

Re: Organic vs Inorganic Reducers Tollens reagent

Ismael, I think you may be misunderstanding the purpose of an MSDS and therefore the interpretation attached to information contained in it. The purpose is to provide safety-related information on a material that the person handling it may not be familiar with (such as a factory worker). As such, OS...
by mgking
Sun Jun 22, 2008 4:17 pm
Forum: The Hand Lettering Forum
Topic: Website redesign
Replies: 5
Views: 4184

Why thank you, Rod, I'm kinda proud of them. I wish I could claim that we did that but we are just lowly purveyors of tools and supplies. Our customer deserves the praise. Although I did have to help calculate the surface area of the inside of a sphere so they could use the right amount of chemicals...
by mgking
Fri Feb 15, 2008 5:59 am
Forum: The Hand Lettering Forum
Topic: Hard Water and Silvering
Replies: 10
Views: 5414

You only should need distilled or deiononized water when chemistry is involved. Even washing the mirror afterwards shouldn't be a problem as the deposit has been done by then. Stripping or polishing will need clean water once you have removed the "crud" but then just one final pass. The so...
by mgking
Sat Apr 07, 2007 8:14 am
Forum: The Hand Lettering Forum
Topic: Backing up your files to a remote server?
Replies: 1
Views: 1983

Unfortunately, there is one benefit and lots of costs, most of them "indefinite". You may end up ahead of the game but you need to be careful of some administrative headaches that I have run into in my career as a Database Administrator. First off, as you noted, your existing provider tran...
by mgking
Sat Mar 24, 2007 7:41 am
Forum: The Hand Lettering Forum
Topic: Silver on Glass Variation
Replies: 2
Views: 2461

This is a surprise to me. While ferric chloride (iron perchloride) will certainly dissolve copper, it seems unlikely that it would attack silver. Standard chemical techniques for removing silver use an approach where something dissolves a very small amount of the silver which is then complexed by am...