To clean sanding dust off epoxy using alcohol, you first need to ensure the epoxy surface is fully cured. If it's not, alcohol can potentially damage or soften the epoxy. Once it's fully cured, lightly dampen a clean, lint-free cloth with isopropyl alcohol (preferably 99% for its quick evaporation properties) and gently wipe the surface to pick up the dust. It's crucial to avoid soaking the cloth too much to prevent the alcohol from affecting the epoxy's surface. After wiping, use a dry lint-free cloth to remove any remaining residue or moisture. Repeat the process if necessary. Isopropyl alcohol is preferred due to its effectiveness in removing grease, dust, and other contaminants without leaving residue. Always perform a small test in an inconspicuous area first to ensure compatibility.

Wood and grass significantly differ in cellulose content due to their structural variations and biological purposes. Wood, which forms the structure of trees, has a cellulose content that can vary widely, commonly around 40-50%. This cellulose, combined with lignin, gives wood its strength and rigidity, necessary for trees to reach considerable heights and live for many years. Grass, on the other hand, has a slightly higher proportion of cellulose, usually around 25-40%, but this is accompanied by higher levels of other compounds like hemicellulose and silica. Despite grass having a high cellulose percentage, the overall density and compactness of cellulose in wood make it a more cellulose-rich material by volume. The difference in composition reflects the evolutionary adaptations of these plants to their environments and roles in ecosystems. In summary, while grass may have a high cellulose percentage, wood generally contains more cellulose by volume due to its denser structure.

PVC (Polyvinyl Chloride) panels are popular for both residential and commercial interior design due to their durability, ease of installation, and low maintenance requirements. These panels typically come in widths ranging from 4 inches to 24 inches and lengths that can extend up to 20 feet, while the standard thickness is generally between 5mm to 10mm. However, the most common size for PVC wall and ceiling panels is 8 inches wide by 10 feet long, with a thickness of around 8mm. This size offers a good balance between coverage area and installation ease, making it a preferred choice for various applications such as in bathrooms, kitchens, and for cladding purposes. Manufacturers might offer other dimensions to suit specific project requirements, ensuring versatility in application. Choosing the right size of PVC panel depends on the area of application, the height of the ceiling, and the desired aesthetic effect.