on saleRobert Oster Bondi Blue - 50ml Bottled Ink

Product Code RO-50210

In Stock

out of stock

on saleRobert Oster Bondi Blue - 50ml Bottled Ink

Product Code RO-50210

In Stock

out of stock

50ml Bottle

50ml plastic bottle of Robert Oster Signature fountain pen ink in the color Bondi Blue.

Robert Oster Signature Inks are handmade in Australia. The recyclable PET bottles are manufactured in Australia's first carbon neutral plastics plant.

Note: Robert Oster is in the process of changing the labels on their bottle and the label on the bottle you receive may vary from what is pictured here.

A message from Robert Oster:

My great interest in fountain pen inks – and by extension inks that combine many creative applications – began with the birth of my love of fountain pens in 1989.

As Robert Oster Signature Inks are quite recent to the market, think of the interim between 1989 and today, as the fertile ground into which my present love of all things ink was seeded and grown.

The contents and packaging of my Inks are all nature friendly and the colours a genuine inventory of the Australian palette.

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.

Robert Oster
Bottled Ink
Bottle Material
Bottle Opening Diameter
17.4mm (0.69in)
Fast Drying

Whether or not the ink contains glittery particles.

Freeze Resistant

Whether or not an ink is specially formulated to better withstand freezing temperatures.

Iron Gall

Ink made from iron salts and tannic acids. Though quite permanent and waterproof, these inks are typically known for causing chemical corrosion to metal pen parts (especially the nib) and should be used sparingly or with less-valuable pens.


Whether or not an ink is specially formulated to increase flow in your pen.


Whether or not the ink contains finely-ground solid particles in liquid suspension.

Water Resistant

Whether or not the ink, once dried on the paper, will resist being washed away with water.


Customer Reviews

Based on 7 reviews
Steve L.
Better than I thought it would be

I have one other Robert Oster ink, African Gold, and it has always performed admirably. The Bondi Blue impressed me by the depth and dimensionality is presents. I first tested it in a broad nib to get a good representation of what it was capable of. As another reviewer stated it is a bit more blue and less turquoise than the sample image shows - but the depth of shading is impressive. It almost seems to rise off of the page. The slight red sheen that shows on certain strokes also makes those letters look distinctly edged. I bought this as a present for my wife who didn't initially like the look of it, but later asked me to ink up her new pen with it.

Anthony M.V.
A perfect shade of blue for art

Robert Oster inks might quite possibly be the most diverse terms of color and being art and nib friendly That shade wonderfully and are very behaved...Having said that I am basing it on a pair of samples The Bondi Blue is an absolutely beautiful color that shades even in EF Japanese pens and looks Amazing to me, mind you I am partial to this shade of blue Photo are on Goulet pad and studio calligraphy paper and the color punches up on both

Cotton Candy Color

This is my favorite blue. With the sheen it has a cotton candy look to it. Good shading. The blue is very interesting is its a blue all its own.

Excellent ink.

I bought this ink intending to compare it to my favorite, Pilot Iroshizuku Ama Iro. The Bondi Blue reminded me of a recent trip to Bondi Beach. It is a spectacularly beautiful place near Sydney, Australia. As pictured on the Goulet website and displayed on my Mac, the color looks a little more turquoise than it appeared on paper. By comparison, the Bondi Blue is a bit more blue-black and darker than the Ama Iro. Ama Iro is a true blue; there is little green in it but it is bright. The Bondi Blue, by comparison, is a bit more blue-black, though some of its shading, which is lovely, is lighter blue. Fans of a true turquoise might prefer the Australian Sky Blue, also from Robert Oster - true blue but lighter than Bondi Blue. The Robert Oster Torquay is more green than blue, though it definitely has a blue undertone. The best substitute for Iroshizuku Ama Iro looks like the Diamine Aqua Blue, a sample of which I also purchased recently. That has a very slight hint of green, just off the true blue of the Ama Iro and more turquoise than Ama Iro. Finally, the Diamine Turquoise is, to my eye, a true blue that is very close to Ama Iro. The Robert Oster inks are all well-behaved. They flow well and don't feather. They seem to dry in a reasonable time - faster than the Iroshizuku Ama Iro.

Mary R.
Beautiful bright blue.

Bright, clear blue. On ink-resistant paper it can have a red sheen around the edges. I'm using it in a fairly dry pen, so I only get the sheen occasionally when the ink pools on the first letter. The ink is a tad dry- I don't think I would have noticed at all except that this is a dry pen and so I can feel the ink is dry-er than some others I use.

FAQs about Bottled Ink

Which pens can accept this ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Any of these fountain pens will work with bottled ink. Typically, as long as the pen can be filled with a converter, has a built-in filling mechanism like a piston, or can be eyedropper-filled, it can accept bottled ink.

What is shading, sheening, or shimmering ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Shading - A common (and often desired) result of a fountain pen ink pooling in certain parts of a letter when writing, so that the color and saturation of the ink appears different within a single letter or word. This characteristic cannot be achieved with ballpoint or rollerball pens and is a very appealing aspect of fountain pen use for those particularly drawn to all the pretty ink colors.

Sheen - Characteristic of a fountain pen ink where when ink pools another color can be seen on top of the ink, especially when looked at in different light angles using certain paper types. There is no way to guarantee an ink will sheen, but using a larger nib on a pen will help obtain sheening results in your writing.

Shimmering - Fountain pen ink that has small particles of glitter mixed in.

Is shimmering ink safe to use in fountain pens? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Yes! Shimmering ink is a great way to add some flare to your writing. We have found that a larger nib will showcase more shimmering particles while writing, but you can use any nib size and shimmering ink. All the ink we sell is safe for use in fountain pens.

You can learn more in our blog: How to Write with Shimmering Ink.

My ink smells funny, is it safe to use? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Generally yes! Ink does not smell good- it usually has a chemical smell, along with other scents such as sulfur, rubber, chemicals or even paint. However, as long as you’re not seeing anything floating in the ink, it should be safe to use.

It’s cold and my ink froze; is it safe to use? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Yes, frozen ink will not hurt your pen (after it’s thawed of course!) The issue with ink freezing is primarily a concern because certain glass bottles could break as the water-based ink expands, and then you’d have a mess!

What is your return policy for bottled ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

We do not accept returns for ink that has been used. Otherwise, we accept returns on unused ink products for up to 30 days from purchase. You can read all our Return Policies here.

To initiate a return, please submit a request at the Return Portal. Our Customer Care team might reach out to you for more information.