DELTA CREATIVE-Soy Varnish. Soy Varnish is an eco-friendly bio-based varnish for use over Soy Stain. This varnish fills the pores and is worked into the substrate to provide maximum resistance against moisture and staining. This varnish is water-based and easy to clean up and has no odor and low VOC. Great for home decor projects and more! This package contains one 4 fl. ounce jar of Soy Varnish. Conforms to ASTM D4236. Made in USA.