A water-slide decal is a printed film you soak in water and slide onto the part. Bandai sells water decal sheets for some kits and lines, such as 30 Minutes Missions and the HG VF-31F Siegfried.
Our kit database counts 21 items with water decals in the name (Bandai's lists, read Oct 11, 2026).
Read Oct 14, 2026. The definition is ours; facts come from the pages above.