dissolve in cold water.There may be tweaking of settings ... -in-dark ,black,white, transparent, blue, red , yellow, green,orange,pink,yasmine green,silver, grey, light blue ... 3mm/1.75mm black,white, natural, blue, red , yellow, green,orange,pink,yasmine green,silver, grey, light blue ... 36 g/cm3• Solubility into water; soluble into cold water Esun PVA 1.75mm/3mm Water Soluble filament welding rod for 3D ...