Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Pen Ink, Refills & Cartridges
Origin	-
Brand	GRASP
Ink Type	Oil-Based Permanent
Available Colors	168 Unique Shades
Pack Options	Single Bottle or 48-Color Set
Bottle Volume	15ml per unit
Drying Time	Fast-Drying Formula
Surface Compatibility	Paper, Plastic, Metal, Glass, Wood
Odor Level	Low Odor
Refill Method	Direct Drip or Syringe Application
Country of Origin	USA

6 reviews

Anonymous

Mar 26, 2026

Rating: 5/5

Extensive color range

Impressed by the 168 color options. I was able to find a specific teal shade that no other brand offers. Will definitely reorder when I run low.

Anonymous

Mar 15, 2026

Rating: 5/5

Perfect for reviving old markers

I had a set of expensive markers that were drying out. This refill solution brought them back to life instantly. The color match for the navy blue was spot on.

Anonymous

Mar 06, 2026

Rating: 5/5

Artist approved!

As an illustrator, I go through ink quickly. These refills are cost-effective and the oil-based formula stays permanent on various surfaces without smudging.

Anonymous

Mar 05, 2026

Rating: 4/5

Great value for bulk sets

Bought the 48-color set for my design studio. Most colors are vibrant and flow well. One or two shades were slightly thinner than expected, but overall a great purchase.

Anonymous

Mar 05, 2026

Rating: 3/5

Good but messy if not careful

The ink quality is excellent, but you need to be very careful when refilling to avoid spills. Wear gloves! Once inside the marker, it works perfectly though.

Anonymous

Mar 02, 2026

Rating: 5/5

No more waste

Hate throwing away marker bodies when the ink runs dry. This solution lets me keep my favorite ergonomic markers forever. Easy to apply with the included dropper.

5 FAQ

Q: Will this work on glass surfaces permanently?

A: Yes, once dried, the oil-based ink is permanent on glass. However, it can be removed with alcohol-based cleaners or acetone if needed before it sets completely.

Q: How long does the ink last after refilling?

A: Depending on usage frequency, a single 15ml refill can typically restore a marker for several months of regular use. Always cap tightly when not in use to prevent evaporation.

Q: Is the ink toxic if it touches skin?

A: While our ink is non-toxic once dry, we recommend avoiding prolonged skin contact during the refilling process. Wash hands with soap and water if contact occurs.

Q: Can this ink be used in water-based markers?

A: No, this is an oil-based formula specifically designed for oil-based permanent markers. Mixing it with water-based ink may cause clogging or poor performance.

Q: Do you sell refill syringes separately?

A: Yes, precision applicator syringes are available in our accessories section under 'Marker Tools'. They provide the cleanest refill experience.

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