Pebeo Drawing Gum (masking fluid) Original 250ml Pebeo from $19.57 $27.50 Qty. Add to Cart SKU: PO372000CAN This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. We have tested a lot of masking fluids and we think this is by far the best one that we have tested for watercolor. Tweet