The Sashco Conceal is an acrylic latex caulk that mimics the texture of wood for caulking wood and other materials in indoor or outdoor applications, such as filling or sealing gaps or cracks up to 2" wide in logs, doors, siding, vents, eaves, baseboards, and crown molding. It is paintable with latex and oil-based paints, stains, and primers. This caulk meets Federal Specification TT-S-00230B and American Society for Testing and Materials International (ASTM) C-834 and C-920 standards.SpecificationsMaximum widthUp to 2" wideApplication temperature range40 to 90 degrees F (4 to 32 degrees C)Service temperature range-30 to +250 degrees F (-34 to +121 degrees C)Begins to hardenLess than 1 hourTime until cured3 weeks (dependent on temperature, humidity, and bead size)Compatible materialsWood, vinyl, foam insulation, insulating glass sealants; wood treated with most wood preservatives, including pentachlorophenol, copper compounds, and most boratesPaintabilityPaintable with latex paints, stains, and primers after 24 hours; paintable with most oil-based paints, stains, and primers after about 1 weekVolatile organic compounds (VOC)42 g/L (less than 1.5% by weight) Caulks and sealants are adhesive materials that fill and seal gaps and cracks to keep out water and air. Water-based acrylics can be painted, can be cleaned with water, and require less surface preparation than solvent- and silicone-based caulks and sealants. Water-based acrylic caulks and sealants have less of an odor than solvent- and silicone-based products. Solvent- and silicone-based caulks and sealants are generally more flexible than acrylics and can withstand more sunlight and temperature extremes. They require solvents to clean, are more difficult to remove than acrylics, and generally cannot be painted. Water-based acrylic caulks and sealants with added silicone offer a variety of features, depending on the specific formula.Sashco manufactures caulks and sealants. The company, founded in 1936, is headquartered in Brighton, CO.