Both “dry erase marker” and “whiteboard marker” refer to pens that use erasable ink designed for slick, non‑porous surfaces such as whiteboards.

Ink Composition and Chemistry

Whiteboard/dry‑erase inks are formulated with silicone polymers suspended in volatile, alcohol‑based solvents. The polymer prevents the ink from bonding to the surface, enabling easy wiping, while the solvents evaporate quickly for fast drying.

Surface Compatibility

These markers perform best on non-porous substrates, which cannot absorb the ink. The smooth surface allows the polymer-coated ink to adhere to the board surface and wipe clean easily.

Erasability and Performance

Key performance metrics include erasability (no staining), resistance to “ghosting” (faint residual marks), ink flow consistency, and drying time. Over time, repeated writing on lower‑grade boards creates microscopic surface abrasions that trap ink, leading to ghosting and residual haze.

Tip Types and Line Precision

Marker tip geometry dictates line width and writing style:

Bullet: uniform, ~1–2 mm line, ideal for everyday writing

Chisel: adjustable width (broad or fine), good for headings and emphasis

Fine/Ultra‑Fine: precise, ~0.7 mm line, suited for detailed notes or small text

Ergonomics and Design

Modern markers feature ergonomic enhancements:

Barrel shapes (e.g., squircle designs) that prevent rolling and improve grip

Cap retention systems (snap‑fit, click‑on) to reduce cap loss

Magnetic caps or barrels for easy board‑side storage

FAQ

Q1: Are dry erase markers and whiteboard markers the same?
A: Yes. Both terms describe pens with erasable ink formulated for non‑porous surfaces like whiteboards.

Q2: Can I use whiteboard markers on glass or acrylic?
A: Absolutely. These markers work on any slick, non‑porous surface—including glass, acrylic, and melamine—because the ink sits on the surface rather than being absorbed.

Q3: Why do my markers leave faint ghost marks?
A: Ghosting occurs when the board’s surface coating degrades—microscopic craters trap ink residues, making them hard to erase completely. Using porcelain or glass boards can reduce this effect.

Q4: Are dry erase inks safe and low‑odor?
A: Yes. Low odor and non-toxic, suitable for use in classrooms and offices.