DELTA CREATIVE-Soy Stain. Soy Stain is an eco-friendly bio-based permanent, penetrating stain. This stain must be worked into the substrate. This stain is water-based and easy to clean up and has low odor and low VOC. Great for home decor projects and more! This package contains one 4 fl. ounce jar of Soy Stain. Available in a variety of shades: each sold separately. Conforms to ASTM D4236. Made in USA.