You can use Gundam Marker Pour Type Brown on either straight builds or before painting. Ink flows smoothly only by applying the penpoint to the mold. Any excess can be easily removed with GM300 Gundam Marker Remover. You cant use this marker on painted products because the oil will eat through the paint!
Used with permission, copyright 2021 Gunze Sangyo. Copyright 2021 Brey Corp. t/a Hobby Works.