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Robert Oster Signature - Purple Rock

robert oster signature purple rock purple-grey

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19 replies to this topic

#1 namrehsnoom

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Posted 03 January 2017 - 17:07

Robert Oster Signature - Purple Rock

 

Robert Oster is an Australian ink maker that is well-known for its unique range of colours. On his website he describes our shared love quite eloquently: “Robert Oster Signature originates from one of the most famous wine producing regions of the world, the Coonawarra district of South Australia, an idyllic setting with great influence on the senses. There is my inspiration. It’s a joy to share it with you.” Well, we are certainly fortunate to have inspiring ink makers like Robert Oster to satiate our thirst for glorious inks.

 

fpn_1483462340__robert_oster_-_purple_ro

 

In this review I take a closer look at Purple Rock – a mesmerizing grey-purple ink. The colour is stunning, with a definite vintage feel. It writes wet and smooth, and can accommodate all nib sizes with equal grace. The ink shades beautifully without too much contrast between the lighter and darker parts, just as I like it. In swabs, the ink definitely shows its purple character, but in writing it’s more of a dark purple-grey.

 

And it’s that purple component that provides all the magic ! When writing, the ink is laid down in a dark grey line, with the purple undertone surfacing as it dries. This is a really neat effect – you just stop writing while watching the ink change its hue as it dries. Mesmerizing! There’s also some strange magic going on between ink and light. Depending on the light and the angle you’re looking at the paper, the inks’ appearance can change from a dark grey to quite a purple colour. Fascinating, as Mr. Spock would say (but also quite impossible to catch with my scanner).

 

fpn_1483462357__robert_oster_-_purple_ro

 

On the smudge test – rubbing text with a moist Q-tip cotton swab – Purple Rock behaved very well – there is only some minor smearing. Water resistance is totally non-existent though – even short exposures to water completely obliterate your writing. On the droplet test and after short exposures to running tap water, all the ink simply vanished. This is clear from the lower part of the chroma – almost no ink remains attached to the paper. The chroma also shows the complex character of the ink – Mr. Oster sure has great mixing skills.

 

fpn_1483462378__robert_oster_-_purple_ro

 

I’ve tested the ink on a wide variety of paper – from crappy Moleskine to high-end Tomoe River. On every small band of paper I show you:

  • An ink swab, made with a cotton Q-tip
  • 1-2-3 pass swab, to show increasing saturation
  • An ink scribble made with an M-nib fountain pen
  • The name of the paper used, written with a B-nib
  • A small text sample, written with an M-nib
  • Drying times of the ink on the paper (with the M-nib)

Purple Rock behaved perfectly on most paper types. For some reason though, the chemistry of the ink clashes with Moleskine paper, resulting in more of a sickly green-grey – all those lovely purple undertones are just gone ! Hard to believe that this is the same ink. With the Moleskine paper, there’s also significant see-through and bleed-through. Drying times are mostly around the 10-15 second mark. The ink looks beautiful both on the white and the more yellowish paper.  Purple Rock’s appearance differs widely across the paper types – from mostly grey on Tomoe River to mostly purple on Fantasticpaper. I also show the back-side of the different paper types, in the same order.

 

fpn_1483462401__robert_oster_-_purple_ro

fpn_1483462422__robert_oster_-_purple_ro

 

fpn_1483462440__robert_oster_-_purple_ro

fpn_1483462455__robert_oster_-_purple_ro

 

Conclusion

 

Robert Oster Purple Rock is a very nice vintage-looking purple-grey. The ink has great dynamics: it changes hue as it dries, and the purple undertones have a fascinating way of changing with the ambient light and the angle you look at the paper. It’s a nice wet and saturated ink, with good contrast on all types of paper, but with no water resistance at all. Overall I’m impressed by this creation of the Australian ink master – definitely an ink to use on a regular basis. If you like greys or purples and/or dusty inks, this ink rightfully deserves a place in your collection.

 

Technical test results on Rhodia N° 16 notepad paper, written with Lamy Safari, M-nib

 

fpn_1483462473__robert_oster_-_purple_ro

 

fpn_1483462508__robert_oster_-_purple_ro

 



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#2 migo984

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Posted 03 January 2017 - 17:25

Thanks for a great review. Purple Rock is one of my favourite inks, & definitely my favourite grey, by a wide margin. It's a very complex colour mix & I love using it for pen sketches & colour washes.

Verba volant, scripta manent


#3 Tas

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Posted 03 January 2017 - 17:29

Fab review as always !

#4 visvamitra

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Posted 03 January 2017 - 20:22

Excellent review. I do like what I see. It's kind of "murky" purple I enjoy a lot. Thank you for showing this one so skillfully :) I know it's time for some subdued greys and blue-blacks but I would really like to see your review of some joyful red or pink :) That would be interesting. Maybe L'Artisan Pastellier Andrinople?



#5 inkstainedruth

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Posted 03 January 2017 - 21:19

Thanks for the review.  I currently have Purple Rock in my Lamy Safari, and have been very impressed with the ink.  And it's just different enough a color from KWZI Grey-Plum, that I suspect I'm going to end up with both inks at some point.... 

Ruth Morrisson aka inkstaiendruth


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#6 lapis

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Posted 03 January 2017 - 22:18

Excellent review once more!  Grey + purple = WOW.  And all those variations on different papers. I'll get this one for sure. You did it again!!

 

Mike


Life is too short to drink bad wine (Goethe)


#7 errantmarginalia

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Posted 03 January 2017 - 23:14

Nice color, lovely review, thank you!

#8 ENewton

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Posted 04 January 2017 - 02:27

Thank you for this review.  The grey-purples are my favorite inks, and Purple Rock has become one my staples.

 

I am glad that you mention the greenish tinge on Moleskine.  I've observed the same effect on Leuchturm 1917 and wondered about it.  



#9 Pensei

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Posted 04 January 2017 - 06:19

Thanks for a fine review. I got a sample of this and it became an instant favorite. As it turns out, Chu-shu came to my desk at the same time, and it's nice, also. 



#10 ca49reber

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Posted 04 January 2017 - 08:05

I like this color & this ink. I used it with a fine nib so it writes darker than one would think from the reviews. Definitely a keeper.



#11 Newjelan

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Posted 07 January 2017 - 09:18

Thanks for your review. This looks like a beauty and may destroy my 2017 Resolution of No More Ink.

#12 amberleadavis

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Posted 08 January 2017 - 23:00

Wonderful review!  

 

I was so disappointed in Tamon purple because it faded so fast.  I wonder if the RO inks will prove more resilient. 


Fountain pens are my preferred COLOR DELIVERY SYSTEM (in part because crayons melt in Las Vegas).

 

Want to get a special letter / gift from me, then create a Ghostly Avatar  

 

Ink comparisons:  The Great PPS Comparison  366 Inks in 2016

 

Check out inks sorted by color:  Blue Purple Brown  Red Green Dark Green Orange Black  Pinks  Yellows  Blue-Blacks Grey/Gray UVInks Turquoise/Teal MURKY


#13 PenPaper52

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Posted 16 January 2017 - 18:16



Lovely ink. Thanks for the review

#14 ENewton

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Posted 20 February 2017 - 16:58

I have been continuing to notice that on some papers, this ink dries green or develops a greenish tinge over time.

 

In my hobonichi techo, writing that I did with a very fine point a few weeks ago now has a greenish cast.

 

On gift tags--the kind with adhesive on the back--the ink dries green, not just green-tinged but decidedly green, within a minute or two.



#15 mehandiratta

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Posted 24 February 2017 - 05:06

fabulous review...


vaibhav mehandiratta                               

architect & fountain pen connoisseur 

 

blog | instagram | twitter

 

 


#16 CrispyBacon_87

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Posted 26 February 2017 - 11:07

Extremely well done review! I love the part where you wrote the same sentence in all the nib sizes. Very helpful :)

#17 Inkantadora

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Posted 26 February 2017 - 21:25

Great review! Especially appreciate the various paper samples. :)
In Instagram, I am also Inkantadora . I live and dream in saturated and sheening color.

#18 amberleadavis

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Posted 03 March 2017 - 18:41

That looks a lot like the Cassis you just reviewed.   Thank you for sharing.


Fountain pens are my preferred COLOR DELIVERY SYSTEM (in part because crayons melt in Las Vegas).

 

Want to get a special letter / gift from me, then create a Ghostly Avatar  

 

Ink comparisons:  The Great PPS Comparison  366 Inks in 2016

 

Check out inks sorted by color:  Blue Purple Brown  Red Green Dark Green Orange Black  Pinks  Yellows  Blue-Blacks Grey/Gray UVInks Turquoise/Teal MURKY


#19 Lothianjavert

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Posted 04 March 2017 - 03:00

Fabulous review!  Love the Frank Herbert Dune quotes!  I may need to get this ink- it is a bit different from what I usually use.  The more I look at it, the more it grows on me. 



#20 mjelson

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Posted 10 March 2017 - 00:24

Well , that sold me.  Thanks for the great review.







Also tagged with one or more of these keywords: robert oster, signature, purple rock, purple-grey



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