What are the pigments on the gourd?
0.25 × 40.03 = 0.25 × 40 + 0.25 × 0.03 = 10.0075
Painting with a traditional Chinese painting, drawing a good dry, to the entire gourd on a layer of transparent paint (with polyester paint or varnish can be), paint and then coated with a layer, so that will not bleach.
