Duckback is dedicated to making extremely high quality coatings that protect wood from harsh ultraviolet rays and shed rainfall like water off a duck"s back. Mason"s Select Quart Clear Gloss Concrete Sealer. Seals and protects without yellowing. Prevents grease and oil damage to concrete. Use on bare concrete, or over acrylic and acid based stains. Ideal for pavers, walkways, driveways and any concrete substrate. Provides a high sheen, wet look. Contains VOC 250.