Nitram Liquid Charcoal Review

Nitram Liquid Charcoal for art Review. I must admit that I had A lot of trouble with this product, it was gritty when dry and worst of all, erasing the liquid charcoal was difficult at best. Keep in mind I do have a technique i enjoy, and using the soft erasure is a large part of that technique so my review is biased to that technique but for $25.00 I was hoping for at least a weee bit of a miracle:)