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De Atramentis Document Ink

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de Atramentis Document Ink bottle

A permanent and waterproof ink that conforms to ISO 12757 part 2 for archival quality. Suitable for all fountain pens.

Technical data:

  • pH: 7,5
  • Surface tension: 60 mN/m
  • Viscosity: 1,2 mPas
  • Heat resistant: Yes
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Review By Paul Bragg,
An excellent service from Martin and the Writing Desk. All my queries were answered fully. My &quo ...
20-11-2020
Review By Christopher,
My TWSBI mechanical pencil arrived so quickly I didn't realise what was in the parcel. Ordered at 11 ...
20-11-2020
Review By Victoria Stevenson,
I received my parcel the day after I ordered it. And the Writing Desk answered my query almost immed ...
19-11-2020
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