{"id":21637,"date":"2026-06-24T10:55:54","date_gmt":"2026-06-24T08:55:54","guid":{"rendered":"https:\/\/staging.passepartout-versand.de\/produkt\/slip-in-mat-30-x-40-cm\/"},"modified":"2026-10-05T14:32:56","modified_gmt":"2026-10-05T12:32:56","slug":"slip-in-mat-30-x-40-cm","status":"publish","type":"product","link":"https:\/\/www.passepartout-versand.de\/en\/produkt\/slip-in-mat-30-x-40-cm\/","title":{"rendered":"Slip-in Passepartout 30 x 40 cm"},"content":{"rendered":"<p><b>Insert Passepartout in outer format 30 x 40 cm<\/b><\/p>\n<p>The selected insert Passepartout is available in the following colors and qualities:<br \/>\nWhite porcelain (101-W)<br \/>\nWhite ivory (102-W)<br \/>\nWhite pure (901-W)<br \/>\nGray dark (902-W)<br \/>\nGray light (400-W)<br \/>\nGray medium (403-W)<br \/>\nGray slate (401-W)<br \/>\nBlack (404-W)<br \/>\nOff-white (101-CB)<br \/>\nWhite linden beige (102-CB)<br \/>\nWhite natural white (101-RM)<br \/>\nCream (104-S) 2.0 mm<br \/>\nPure white (101-S) 2.0 mm<\/p>\n<p>You can select additional colors and qualities with custom outer format and window dimensions in the <a href=\"https:\/\/www.passepartout-versand.de\/content\/designer-passepartout\/?ANR=I0x14-101-Wx300x400x1x190x260xrectanglex550x700x0\" target=\"_parent\">Custom Passepartout<\/a> section.<br \/>\nCreate your desired Passepartout here, choose a backing board, then select &#8220;finish as insert Passepartout.&#8221;<br \/>\nThe Passepartout border should have a minimum width of 3.0 cm. For smaller dimensions, please contact us.<\/p>\n<p><b>White-Core Quality Features:<\/b><br \/>\n&#8211; acid-free due to buffering with calcium carbonate<br \/>\n&#8211; pH value: 7.7 &#8211; 8.5<br \/>\n&#8211; permanently white core<br \/>\n<b>Conservation-Board Quality Features:<\/b><br \/>\n&#8211; age-resistant per DIN ISO 9706<br \/>\n&#8211; acid-free due to buffering with calcium carbonate<br \/>\n&#8211; pH value: 8.0 &#8211; 9.0<br \/>\n<b>Rag-Mat Quality Features:<\/b><br \/>\n&#8211; highest quality made from pure cotton cellulose<br \/>\n&#8211; solid-color core material<br \/>\n&#8211; age-resistant per DIN ISO 9706<br \/>\n&#8211; acid-free due to buffering with calcium carbonate<br \/>\n&#8211; pH value: 8.0 &#8211; 9.0<br \/>\n<b>MSK Natural Quality properties:<\/b><br \/>\n&#8211; age-resistant per DIN ISO 9706<br \/>\n&#8211; solid-colored core<br \/>\n&#8211; acid-free due to buffering with calcium carbonate<br \/>\n&#8211; pH value: 8.0 &#8211; 9.0<\/p>\n<p><strong>Manufacturer information:<\/strong><\/p>\n<p>Passepartout Workshop<br \/>\nB\u00e4ckerstr. 2<br \/>\n21379 Echem<\/p>\n<p>info@passepartout-werkstatt.de<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In 4 sizes and 10 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