In the comments of my last pen review, Bob asked about the waterproof-ness of the Copic and the Pilot pens I had road tested. He was specifically interested in how they’d wash I think, so upon figuring out my new Rotring Rapidograph just before I decided to do some science and test the Pilot Hi-Tec-C, Copic Multiliner SP and Rotring Rapidograph.
The Pilot is conclusively not waterproof. Insofar as getting a nice wash out of it, I think you’ll be disappointed. The ink just sort of feathers out and becomes obnoxiously furry, and you can’t push it around with the brush at all.
I have decided that the 0.03 Copic Multiliner SP is my natural enemy. It is useless if you want consistently nice, inky, black lines. It is waterproof, so I guess that’s one upside. I don’t know why the nib has started performing like this – I have hardly used the pen! It looks blocked to me, but I’m completely disinterested in purchasing another nib – unfortunately I bought a spare ink cartridge for this pen too. What a waste!
And now my new lover, the .10 Rotring Rapidograph. I bought it from an ebay seller in Malaysia and it didn’t come with instructions. So, I was furiously googling for information on how to assemble it properly for fear I’d do something wrong and render it unusable. Kate came to my rescue with a scan of her instructions and I discovered that I’d managed to assemble it incorrectly, so once it was all connected properly I was so happy to see the ink flowing perfectly!
I’m happy to say that the Rotring ink is waterproof, which suits my purposes perfectly as I occasionally use watercolour over an inked drawing.
Bob, I hope I’ve satisfied your curiosity on the subject of the waterproofosity of these pens!