Presentation on theme: "Copyright: 1 Acid Etch and Removal T.A.G.S. (The Anti Graffiti Syposium) Saskatoon Canada 13 – 14th Sept 2007 Martin Giles."— Presentation transcript:
Copyright: 1 Acid Etch and Removal T.A.G.S. (The Anti Graffiti Syposium) Saskatoon Canada 13 – 14th Sept 2007 Martin Giles
Copyright: 2 Acid Etch and Removal Let me introduce myself! Name; Martin Giles Nationality; swenglish Age; Born Cambridge England 1962 Home; Malmö Sweden Languages; English / Swedish 15 years working within the marketing and advertising branch, my specialty was and still is event marketing. 4 years of which was running a partnership Ideas Worldwide AB, an advertising and event-marketing agency in Malmö Sweden. For the past 10 years I have been free leasing, working for different companies worldwide working in marketing and helping to prevent vandalism.
Copyright: 3 Topics of Discussion Indentify - Removal - Protect What is Etching / Scratchiti Tools of the trade Where to find it Who is doing it Costs Problems of removal History of removal Removal systems Glass polishing Myidea Protective Films Other products Glass Vandalism
Copyright: 4 Indentifying the Problem What is Scratchiti / Dutch Graffiti Scratching graffiti into the surface using a sharpened tool or object!
Copyright: 5 Indentifying the Problem
Copyright: 6 What Acid Etch Etch graffiti into a surface using an acid solution! Indentifying the Problem
Copyright: 7 Indentifying the Problem
Copyright: 8 Indentifying the Problem Tools of the Trade Scratching
Copyright: 9 Indentifying the Problem Tools of the Trade Acid Etching
Copyright: 10 Indentifying the Problem Tools of the Trade Acid: How does it work and is it danagerous? from Armour Etch: According to what I was told but the chemist, we do not put any HF into the recipe when creating Armour Etch. There is however a.5% (that's half of one percent) presence of HF from the Bifluorides in combination. Hydrofluoric (HF) acid, one of the strongest inorganic acids, is used mainly for industrial purposes (e.g., glass etching, metal cleaning, electronics manufacturing). HF acid also may be found in home rust removers.
Copyright: 11 Indentifying the Problem Tools of the Trade Acid: Is it danagerous?
Copyright: 12 Indentifying the Problem Different kinds of damage Fully tagged were the new scratches make the older ones deeper
Copyright: 13 Indentifying the Problem Different kinds of damage Multi Line done by a lava stone! Multi Line done by going over the tag many times With a stone or plug maybe!
Copyright: 14 Indentifying the Problem Different kinds of damage Single Line scratches Made with maybe drill Bit or a scriber
Copyright: 15 Indentifying the Problem Different kinds of damage Homemade Acid etch mopAcid Etch applied with a sponge
Copyright: 16 Indentifying the Problem Different kinds of damage Wiped from the bottle onto a rag!
Copyright: 17 Indentifying the Problem What kind of Vandal does this kind of Vandalism! Toys with very little or no graffiti skills! Taggers / Gangs wanting to get their name up quick and for it to stay up! Taggers bored with spray paint! More turned to Scratchiti then acid!
Copyright: 18 Removing the Problem The main problem with removing vandalism from glass was the time is took! A store front with a glass window measuring 4m x 3m with a long scratch end to end or a large tag could take 5 to 6 hour to grind and polish! Problems to romove the damage
Copyright: 19 Removing the Problem Problems to romove the damage Often or glass the damage could be on old annealed glass were grinding too hard or to near the edge could crack the glass. Grinding glass that had deep scratches could cause trenching (deep distortion)
Copyright: 20 Removing the Problem Different kinds of glass Annealed glass is the common glass that breaks into large, jagged shards that can cause serious injury, hence annealed glass is considered a hazard in architectural applications. Building codes in many parts of the world restrict the use of annealed glass in areas where there is a high risk of breakage and injury, for example in bathrooms, in door panels, fire exits and at low heights in schools. Toughened glass (also known as tempered glass) is a type of safety glass that has increased strength and will usually shatter in small, square pieces when broken. It is used when strength, thermal resistance and safety are important considerations. Toughened glass is typically four to six times the strength of annealed glass. Although toughened glass is most prone to breakage via edge damage, breakage can also occur from impacts in the centre of the glass pane. Toughened glass in a vandalized phone booth in Britain
Copyright: 21 Removing the Problem History of removal Scratchiti Meets Its Match in Shane Hong's Invention Prof. Shane Hong, professor of mechanical engineering, who has created a "scratchiti buster," a device that applies a flame to the window's surface, melting the glass to erase scratches and repolishs the surface. Prof. Hong has created a prototype that includes a small propane torch to be controlled by a mechanized arm that would attach to a subway car window. The operator could then re-locate the arm from one window to another. Dr. Hong's scratchiti-buster directs intensive heat near the scratch marks, melting a thin layer into liquid, which changes the glass's viscosity. As the glass cools down, the surface tension evens out the indentations made by the scratching. Once cooled, the glass is as smooth and even as it was originally, without grinding or polishing
Copyright: 22 Removing the Problem Removal Systems There has been many different systems on the market promising to give perfect results! As everything in life some work some dont! Some have invested in amazing machines to do a simple jobs! When it comes down to get, its to grind glass and then bring it back to its shine1 Here is a few of the systems I have worked with!
Copyright: 23 Removing the Problem Removal Systems Basically the first thing you have to do is grind the damage away. The most common way to do this is with 3M trizact grinding pads, There are 4 to 5 different grades, depending on the damage!
Copyright: 24 Removing the Problem Removal Systems Then came the next stage Returning the glass back To a high gloss finish! This is SRP Glass Restoration System.
Copyright: 25 Removing the Problem Removal Systems Another way is to polish the glass back using polishing pads and a polishing compound!
Copyright: 26 Removing the Problem My idea The industry needed to be pulled together! There was scratch removal companies starting up and then closing down as quickly as they started! There was distrust among the building management companies, as well as the transport companies! The costs were not leveling out, just going through the roof; as soon as the glass was repaired it was hit again! The glass protection companies offering polyester film were having a problem because budgets were being used up for repair! I decided to look for a new system. Time to bring it together!
Copyright: 27 Removing the Problem My idea I needed to find a way to grind dry instead of wet, it seemed that wet grinding caused the 3M pads to wear out very quickly. This could be a problem, starting with a new pad half way thourgh a grind could cause distoration! I also needed to find a quicker way to polish the glass! I tried many different ways and find if I slowed my grinder down to around 1500 RPM it polished faster! I also tried some dry industrial sanding pads at a lot lower speed which worked better! The last stage I needed to do was to incorparate the protective film!
Copyright: 28 Protection against the Problem Working for the brand Vandal Shield for many years,I understood the ins and outs of Anti Vandalism films! Vandal Shield was the only film really designed for anti- scratch graffiti with its 3 ply polester film!
Copyright: 29 Protection against the Problem Fixing some samples, I was going to send out to a customer I placed Vandal Shield over a area of glass I had been grinding earlier for an experiment, and find it made the fining marks disappear!
Copyright: 30 Protection against the Problem
Copyright: 31 Protection against the Problem
Copyright: 32 Acid Etch and Removal Question Time
Copyright: 33 Thank You Contact details: Martin Giles E mail: Tel: