Onyx countertops are naturally porous, absorbing liquids and staining easily without proper care. Regular sealing every 6 to 12 months is essential to keep them looking their best. Daily maintenance includes wiping up spills immediately and avoiding harsh cleaners or acidic substances that can etch the surface. 

Yes, it is possible to cover old countertops with new ones. Using a countertop overlay to cover your existing countertop is a good way to get a totally new surface without removing your old countertops. This method can be more cost-effective and less time-consuming than a total replacement.

You can cut countertops without chipping by using your saw correctly and having a new fine-toothed blade. You can also put masking tape on the front of the countertop material across the cut line and cut from front to back. However, it is very hard to cut countertops without chipping them, especially if they are made of stone or more fragile materials like laminate. The best advice is to know how to use the equipment, use the correct cutting method for the material, cut from back to front, move slowly, and practice on scrap material first.

Formica is a brand of laminate, so all Formica is laminate, but not all laminate is Formica. To identify it, look for a thin, plastic-like surface bonded to a wood or particleboard base. Formica often has branding on the underside. If you don’t see Formica, it could be Wilsonart, another familiar laminate brand. If the countertop is unique, you can visit the Formica site to find a match. Formica is known for creative collaborations that lead to unique design offerings.