OTR .988 Ball Pen Fluid 100ml
The OTR .988 Ball Pen Fluid 100ml is exactly what you need if your into mixing your own ink and home brews.
This Ball Penn Fluid is thick, highly concentrated and made to add some opacity, permanence & staining power to any alcohol/solvent-based ink or correction fluid.
Excellent for boosting opacity & color saturation, mixing custom & pastel colors, and thickening weaker, thinner inks. It also increases the gloss finish and makes your ink a little harder to remove from some surfaces.
Use about 10% (+/-) to avoid slowing drying times or altering your ink’s flow too much.
This stuff is not meant to be used by itself, at least in the smaller recommended amount (10%), and it makes everything a whole lot easier than pulling 200 pens apart just to get the ink out of the cartridges.
Available in 5 colors.


UPS Ground Delivery: Estimated 1-5 business days.
USPS Ground Advantage: Estimated 1-5 business days.




















Andrew Migot –
This stuff is the real deal if you’re trying to save money. It’s not exactly opaque by itself so use it to cut your more expensive inks when they’re running low. It’s a bit tricky to get your ratios right so I recommend having a semi-precise scale to measure your ingredients and using two separate jars for mixing and storing.