In an effort to increase its line of ecofriendly and LEED-certified products, Increte Systems Inc. has released Stone Essence Concentrated Transparent Stain. Available in 20 standard colors, Stone Essence contains no acid or VOCs. It is mixed with water to provide the deep variegated finish of an acid stain without being hazardous to the environment. A 1-quart bottle of Stone Essence concentrate mixed with 3 quarts water produces a gallon of stain that will cover approximately 200 to 300 square feet. ? www.increte.com