Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / 记号笔/粗笔
Origin	-
Brand	Sanfu
Ink Color	Black
Tip Type	Dual-Tip (Fine and Chisel)
Ink Base	Oil-Based
Water Resistant	Yes
Alcohol Resistant	Yes, suitable for lab environments
Fade Resistant	Yes
Surface Compatibility	Glass, Metal, Plastic, Wood, Ceramic
Package Quantity	12 Markers per Pack
Country of Origin	China

6 reviews

Anonymous

Mar 26, 2026

Rating: 4/5

Great durability, strong odor

The mark quality is fantastic and truly resistant to solvents. Just be aware that the oil-based ink has a strong smell, so use it in a ventilated area.

Anonymous

Mar 25, 2026

Rating: 5/5

Best dual-tip marker I've owned

I love having both the fine point for detailed notes and the chisel tip for bold labels. The black ink is deep and consistent throughout the life of the marker.

Anonymous

Mar 25, 2026

Rating: 5/5

Perfect for Laboratory Use

These markers are exceptional for labeling glassware. The ink stays put even after multiple autoclave cycles and alcohol wipes. Highly recommended for any lab setting.

Anonymous

Mar 16, 2026

Rating: 5/5

Excellent for craft projects

I use these on ceramic mugs and plastic containers. The ink bonds well and doesn't wash off with soap and water. Very satisfied with this purchase.

Anonymous

Mar 13, 2026

Rating: 3/5

Good but dries out if cap left off

The performance is great when fresh, but they seem to dry out faster than other brands if you accidentally leave the cap off for an hour. Otherwise, good value.

Anonymous

Mar 07, 2026

Rating: 5/5

Reliable for inventory tagging

We use these for tagging metal parts in our warehouse. They withstand handling and exposure to cleaning agents without smudging or fading.

5 FAQ

Q: Are these markers safe to use on food contact surfaces like lunch boxes?

A: While the ink is non-toxic once dry, we do not recommend using them on surfaces that directly contact food. They are best suited for external labeling of containers.

Q: What is the shelf life of these markers if unopened?

A: Unopened markers typically have a shelf life of about 2 to 3 years when stored in a cool, dry place away from direct sunlight.

Q: Do the fine tips hold up well under heavy pressure?

A: The fine tip is durable for normal writing and labeling. However, applying excessive pressure may cause the tip to fray over time. We recommend letting the ink flow naturally.

Q: Is this product sold individually or only in packs?

A: This specific listing is for a pack of 12 markers. We do offer single units in other listings if you need to replace just one color or type.

Q: Can the ink be removed from glass if I make a mistake?

A: Since these are alcohol-resistant and permanent, standard cleaners won't work. You can usually remove the ink using a specialized solvent like xylene or acetone with vigorous rubbing.

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