VOC = 19.28% or 211.6 g/L. 4x more density insulating foam sealant. Loctite Tite Foam - uniform structure. Conventional Foam - large voids. Next generation of insulating foam to fill gaps & cracks. 4x more density for better durability & insulation. What does it mean? Expands to fill, seal & insulate with 4 times more cells per cm3. Seals out water, moisture & pests. More resistance to the elements without becoming brittle. Withstands building & material movement. Bonds to most building materials: wood, metal, stone, brick, pvc. Sandable. Paintable. Where to use? Wiring and plumbing penetrations, HVAC ductwork, basement and crawlspace drafts, sill plate, attic hatch, pest entry, interior/exterior. Phone: 1-800-624-7767. Web: www.loctiteproducts.com. Mail: Henkel Corporation, One Henkel Way, Rocky Hill, CT 06067. Made in Estonia.