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Concrete countertops require regular upkeep and can be harder to maintain than other materials. For daily cleaning, use a mild, pH-neutral cleaner and avoid harsh, acidic products that can damage the sealant. It's important to wipe up spills immediately, especially from acidic substances, as concrete stains easily. To prevent scratches, always use a cutting board. The countertops must be resealed periodically—at least once a year—to protect them from stains and moisture. Be aware that concrete is also prone to cracking over time and may require repairs.

The frequency for sealing marble countertops depends on several factors, including the quality and color of the stone, the type of sealant used, and the amount of traffic the surface receives. Marble has a porous surface that requires sealing to maintain its shine and resist scratches. As a general rule, you should seal countertops at least once a year. However, for heavily used surfaces, like those in a busy kitchen or family bathroom, you may need to reseal them every three to six months. Conversely, countertops in a rarely used guest bathroom might only need resealing every few years.

Yes, Corian® and other solid surface materials can be cut with standard woodworking tools, such as a circular saw or a jigsaw. However, it is crucial to use the correct type of blade to avoid damaging the material.

For a circular saw, a tungsten carbide-tipped blade is required; a triple chip grind blade is highly recommended. For a jigsaw, you should use a fine-tooth down-cutting blade. Do not use blades designed for cutting wood, as they can cause microfractures that weaken the edges of the countertop. A diamond blade is also unnecessary, as those are designed for harder materials like natural stone, which Corian is not.

After cutting, the edge will be rough. It is essential to sand and smooth the cut edge to prevent microfractures, which can eventually compromise the integrity of the countertop.

The angle at which you cut countertops depends on the material, your intended outcome, and the location of the cut. For example, rather than cutting a straight 90-degree angle for internal corners, cut edges at a 45-degree angle to give a clean, professional look. For outside edges, most homeowners want squared-off sides, so 90-degree angles can make the most sense there. Because you want to get angles exactly right to minimize seams and eliminate the need for patching, be sure to measure several times before cutting and use the right equipment to get sharp, accurate angles.