added to engraving tools several decades ago “Crown Norge changed from TiN coating more than 20 years ago after a new development in coating technology and superseding the TiN coating,” he says, concluding: “This was a huge improvement which gave a much better surface finish and extended the tool life further.” Protect and Serve As for other advice for sign-makers working in this area, the aptly named National Engravers recently published some handy hints and tips on protecting engraved signs from UV damage. “Whether installed outdoors on a building wall or next to equipment in a light-filled factory, signs that get constant sunlight often experience visible wear,” National Engravers says, adding: “The lettering may start to fade, colours can look washed out, and over time the material itself may weaken or crack. “This kind of damage doesn’t just affect how the sign looks – it can make information harder to read. That’s a problem when the sign carries important instructions, safety warnings, or labels that keep things running smoothly.” So, how can you avoid this? National Engravers offers five steps that could avoid the need for a full replacement. First up, work with high- quality UV-resistant materials that are designed to hold their colour and integrity even under frequent sun exposure, and avoid options such as anodised aluminium, UV-stable plastics, and certain treated metals. Next, applying a clear layer on top of the sign, such as varnish, laminate, or a UV-filtering coat, can help reduce sunlight’s impact, almost acting like a barrier to limit how much of the harmful rays actually reach the engraved surface. On top of this is a recommendation to carry out regular inspections and maintenance of signage to stop issues such as yellowing and surface cracks from worsening. National Engravers also says installing signs under eaves, next to shaded areas, or using UV-resistant barriers nearby can protect them from full sun exposure, while simply shifting the sign just a metre or two having a marked improvement. Finally, consider professional restoration services, even to help save those signs that have already been damaged. “Specialists in restoration can re-engrave worn plates, clean up faded graphics, or restore finishes with the right equipment,” National Engravers says, adding: “This can be particularly helpful for legacy assets or signage that’s part of a safety or information system.” With the advice of several experts ringing in your ears, this should give you enough to go on not only in terms of investing in new equipment but how to ensure engraved, and indeed etched signs, are successful in the long run. ETCHING AND ENGRAVING | ROB FLETCHER The harder the material is, the more rigid the machine needs to be ▼ Crown Norge engraving tools are used in a variety of materials across different machine types ▼Many businesses and associations have seen the desire for engraved metallic signage rise in the past few years 48 email: editor@signlink.co.uk Issue 261 - October / November 2025
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