Hi, I tried them on a test page in my Bible that I have half of it with gesso and the other half not, so I just scribbled then blended with water brush, the gesso part was great and did not bleed through - the part without gesso did not blend but also did not bleed through. So then I tried just drawing a leaf on the part that is not with gesso and I put more pressure on the scribble stick and still did not bleed through - I am actually surprised - I did not purchase these for my Bible but after that little test I will probably use them in my Bible. Tks, Joe Ann
By: joeanns
(05-May-17)
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