June '20

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G R A P H I C S - P R O. C O M 2 0 2 0 J U N E G R A P H I C S P R O 3 5 fore going to the powder-coating shop. One addition was taken in for powder coat- ing, and that was a quantity of flathead screws the install would require, which were to be powder coated at the same time as the logos for a perfect match. Powder coating is, in a number of ways, superior to priming and spray-painting metal parts. But it is not better than paint in one way, and that is the choice of colors. When recommending powder coating, it is best to have the right color chart(s) to show one's customer so a color can be chosen from what is actually available, because, un- like paint, custom colors cannot be mixed. This means that whatever colors are avail- able in the correct type of powder are actu- ally all there is. The exact green of their newly painted interior walls was not made in powder, but we chose a green that was close in a high- gloss polyester powder. The powder, a Tiger Drylac product, can be used indoors or out, and is tough enough to be fairly scratch re- sistant. Powder-coating powders come in special finishes, not just flat, semi-gloss, or gloss, but also in textures and metallics. The background panels were to be black; a spe- cial hammered black powder was chosen, which added an additional bit of character to the finished look of the project. One note here: aluminum sheet thinner than .125 can be a warp risk in a 400-de- gree powder baking oven, and even .125 can surprise a sign maker on occasion. For flat letters, screwed to a building or some- thing like that, .125 or even .090 is okay, but 3/16-inch is probably a safer bet for anything that will be mounted offset from a wall or sign surface. This time, we got by with 1/8-inch thick material and it was fine, but on the offset green part, thicker would have been safer. Out on the install, just a couple of black screws that were well-hidden were used to tack the background parts in place, but the real fasteners were the powder-coated flat- head screws that went through the green and black parts, which were separated by plastic tubing spacers about 3/4-inch long. My guess was the spacers could be hid- den completely. But close up and at a severe angle, that was not the case. This is when odd stuff left in the shop truck comes in handy. In the toolbox were some scraps of black vinyl from a previous job, and small strips were made to wrap around the spac- ers, turning them from white to black and hiding them perfectly. K E R N L A S E R S . C O M | 8 8 8 - 6 6 0 - 2 7 5 5 | M A D E I N T H E U S A EXPERIENCE THE KERN DIFFERENCE > Highly Versatile Fiber & CO 2 Laser Source > Process Acrylic, Sheet Metal, Wood & More > Premium Quality & Performance > HyperDual Motion > Unmatched Safety OptiFlex Class 4 (Open Bed) Laser Cutting & Engraving System LaserCELL Class I (Enclosed) Laser Cutting & Engraving System Unmatched Safety OptiFlex Class 4 (Open Bed) Laser Cutting & Engraving System LaserCELL Class I (Enclosed) Laser Class I (Enclosed) Laser Cutting & Engraving System Cutting & Engraving System

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