The Ultimate Guide to Panel Lining: Markers vs. Wash

Panel lining is the most effective way to make your Gunpla look like a real, massive mechanical weapon rather than a tiny plastic toy. By filling in the recessed lines on the armor, you create depth and contrast.

The Gundam Marker Approach

For beginners, Bandai's Fine-Tip Gundam Markers are incredibly accessible. You simply draw into the groove and immediately rub away the excess ink with your thumb or a cotton swab. It's safe on all plastics and requires no cleanup chemicals.

The Tamiya Panel Line Wash Approach

For advanced builders seeking the cleanest possible lines, Tamiya Panel Line Accent Color is the gold standard. It’s a thinned enamel wash that flows rapidly through the grooves via capillary action.

However, enamel thinner can crack bare plastic, especially ABS frames. It’s highly recommended to apply a gloss clear coat before using enamel washes to protect the plastic and allow the wash to flow perfectly smoothly. Once dry, you clean up the excess dots using a cotton swab lightly dampened with lighter fluid or enamel thinner.