{"id":1449,"date":"2020-11-21T21:39:55","date_gmt":"2020-11-21T20:39:55","guid":{"rendered":"https:\/\/www.laserflux.com\/about-laser-cleaning\/which-materials-can-be-used-for-laser-cleaning\/"},"modified":"2021-09-16T16:15:19","modified_gmt":"2021-09-16T14:15:19","slug":"which-materials-can-be-used-for-laser-cleaning","status":"publish","type":"page","link":"https:\/\/www.laserflux.com\/en\/about-laser-cleaning\/which-materials-can-be-used-for-laser-cleaning\/","title":{"rendered":"Which materials can be used for laser cleaning?"},"content":{"rendered":"\t\t
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Which materials can be used for laser cleaning?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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The most common application of laser cleaning is the cleaning of metal parts. But other materials are suitable as well. A word of explanation.<\/p>\n

Like you may have read on one of our other pages, the contaminated layer (rust, paint, dirt, \u2026) gets very hot and starts to evaporate with laser cleaning. A laser beam usually behaves just the same as a normal light beam. This means that it\u2019s more difficult for reflective or white surfaces to heat up than it is for dark surfaces. They reflect most of the light, while a dark surface absorbs the energy of the light beam and doesn\u2019t reflect it as much. The absorption of this energy causes the heating. <\/p>\n

Most of the contaminated layers are luckily rather dark and not reflective. Think of rust, old coatings, old paint layers, etc. So these will absorb the energy of the laser beam, heat up very strongly and eventually evaporate. That\u2019s why it\u2019s difficult to remove a reflective or white layer with laser cleaning.<\/p>\n

Until now it didn\u2019t really matter what kind of material was under the pollution. The laser beam hasn\u2019t gone through the pollution yet anyway. But once that layer is gone, how does the laser beam know by itself that no material of the underlying part should be removed? Obviously, it doesn\u2019t know that. <\/p>\n

There are two effects that make sure the underlying layer doesn\u2019t get affected. First of all, the laser beam doesn\u2019t work on a reflective surface. There is no heating when the beam gets reflected. That\u2019s why metal parts are very suitable, because bare metal usually reflects really well and as a result, won\u2019t start heating. Secondly, most underlying layers have a higher \u201cevaporation temperature\u201d (=ablation temperature) than the contaminated layer. This means that they will only start evaporating at a much higher temperature. So when the laser beam gets through the pollution, it will partly reflect on the underlying layer and on the other hand, limited heating of the underlying layer won\u2019t remove the material.<\/p>\n

Based on everything mentioned above, we are now able to decide which materials are suitable for laser cleaning. In short: every material that isn\u2019t too dark and that can stand a little bit of heat. This gives us the following list:<\/p>\n

    \n
  • Steel<\/li>\n
  • Inox<\/li>\n
  • Cast iron<\/li>\n
  • Aluminum<\/li>\n
  • Wood<\/li>\n
  • Plastics<\/li>\n
  • Composits<\/li>\n
  • Stone<\/li>\n
  • Some types of glass<\/li>\n
  • Chrome coatings<\/li>\n
  • …<\/li>\n<\/ul>\n

    Last but not least: in some applications it isn\u2019t so bad that a part of the material from the underlying layer gets removed. In that case, you can also use laser cleaning for dark and non-reflective surfaces.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

    The most common application of laser cleaning is the cleaning of metal parts. But other materials are suitable as well. A word of explanation. Like you may have read on one of our other pages, the contaminated layer (rust, paint, dirt, \u2026) gets very hot and starts to evaporate with laser cleaning. A laser beam […]<\/p>\n","protected":false},"author":7,"featured_media":0,"parent":315,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-1449","page","type-page","status-publish","hentry"],"yoast_head":"\nWhich materials can be used for laser cleaning? - Laserflux<\/title>\n<meta name=\"description\" content=\"Would you like to know which materials are suitable for laser cleaning? 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