Amazon.com: HIMI Gouache 100ml (3.38-oz) Bottle Wetting Spray, Suitable for gouache pigments, Art Supplies for Professionals, Nice Gift Art hobbyist : Arts, Crafts & Sewing
MIYA HIMI Moisturized Mildew Gouache Spray 200ml
Amazon.com: HIMI Gouache Paint Set, 41 Pcs Professional Art Painting Supplies Set with HIMI 24 Paints, 6 Paint Brushes, 2 Canvas Boards, Palette, Paint Knife, Moisturized Mildew Gouache Spray, and White Paint