The types of paint that work best with gourds are those that will adhere to many types of surfaces. The surface of gourds will not absorb every type of paint, and some types paint will bead up if applied. Acrylic latex and oil-based paints works the best when decorating a gourd. These types of paint come in very vibrant colors and can last for years if used for indoor decoration. If you want to use your gourd for outdoor purposes, try applying a clear finish to extend the beauty and durability of the gourd.