{"id":6872,"date":"2018-05-18T11:09:55","date_gmt":"2018-05-18T09:09:55","guid":{"rendered":"https:\/\/kotaraoriginal.cz\/washing-out-of-photoresit-films-rayzist-photomask\/"},"modified":"2023-07-31T21:31:51","modified_gmt":"2023-07-31T19:31:51","slug":"washing-out-of-photoresit-films-rayzist-photomask","status":"publish","type":"post","link":"https:\/\/kotaraoriginal.cz\/en\/washing-out-of-photoresit-films-rayzist-photomask\/","title":{"rendered":"RAYZIST Photomask films washing"},"content":{"rendered":"

Washing out the photoresists films is one of the key processes to achieve perfect sandblasting stencils.<\/p>\n

The washout should be done as quickly as possible, within 90 seconds (<\/strong>for 76 \u03bcm photoresist film). <\/strong>Extending the washout time increases the risk of detail smearing. The blue emulsion (the matt side of the photoresist film) absorbs (saturates) water and ambient moisture.<\/p>\n

The condition for a quick washout is that you have carried out the previous steps of making the sandblasting masks correctly:<\/p>\n

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  1. You have used print film with a well made and opaque print.<\/li>\n
  2. You have print film at the correct time, optimized according to the parameters of your exposure unit.<\/li>\n
  3. The print film was perfectly pressed to the matte side of the photoresist film. We recommend the use of vacuum exposure units or units with a pressurized flexible membrane.<\/a><\/li>\n<\/ol>\n

    Factors influencing the quality of photoresist film washout:<\/p>\n