See the unseen before it spoils your finished work; Titebond II Fluorescent Wood Glue shows you where the glue contaminated surfaces are which you thought were clear! Titebond II Wood Glue has been used as a trusted professional glue for many years which cleans up with water and sands off well when dry, but like all glues some bits get missed in preparation and it is not until the stain won't bite or the unsightly marks show under your finish that you know they are there. Assemblies which use Titebond II Fluorescent Wood Glue show them up under a blacklight' (ultra violet lamp) before you commit to your stain or finish but you won't see any difference under normal light conditions and the strength of the bond is as impressive as ever.