Description
Reviews
| 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 |
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.
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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