{"id":16972,"date":"2025-12-08T13:46:05","date_gmt":"2025-12-08T12:46:05","guid":{"rendered":"https:\/\/lume.ch\/extraction-systems\/precoating-system\/"},"modified":"2026-04-12T14:19:37","modified_gmt":"2026-04-12T12:19:37","slug":"precoating-system","status":"publish","type":"page","link":"https:\/\/lume.ch\/en\/extraction-systems\/precoating-system\/","title":{"rendered":"Precoating system"},"content":{"rendered":"\n
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A PRECOATING SYSTEM FOR LONGER FILTER SERVICE LIFE<\/h1>\n \n

We at L+M AG Absauganlagen are also familiar with precoating systems. They are used for critical applications to improve the service life of the filter elements. <\/p>\n<\/div>\n <\/div>\n <\/div>\n <\/div>\n

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L+M AG Precoating system PRC-200<\/div>\n <\/div>\n<\/div>\n
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Precoating systems as fire protection<\/h2>\n\n

They reduce the risk of fire in filter systems and pipelines that could be caused by flying sparks, especially when processing combustible dusts (e.g. in metal processing), special additives can reduce flammability during precoating.<\/p>\n

Precoating for longer filter service life<\/h2>\n

Especially when extracting dust emissions, such as welding fumes and resins, the filter cartridges become saturated very quickly, i.e. the filter material is clogged within a short time.
\nThe precoating system coats the filter cartridges with filter aid. The process is called precoating (the coating is applied before filtration). <\/p>\n

The precoating agent is dosed accordingly so that an even layer is created for optimum protection of the filter cartridges.<\/p>\n\n \n \n\n <\/div>\n <\/div>\n<\/div>\n

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\n \"Mist <\/div>\n \n
Mist filter cartridges with filter aid<\/div>\n <\/div>\n<\/div>\n
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Cleaning process for precoating systems<\/h2>\n\n

The cleaning process takes place after each filtration cycle. Thanks to the compressed air pulses, the fine dust falls into the system’s dust container. By adding the precoating agent again, a new layer is formed on the filter medium. To ensure effective filtration, this process must be repeated at regular intervals, which significantly extends the functionality and service life of the filter cartridges, even with large quantities of dust or damp, sticky dust. <\/p>\n

Precoating applications<\/h2>\n

Precoating the filter cartridges is suitable for extracting, among other things:<\/p>\n