Solid surface is a 100 percent man-made product, which means great diversity when it comes to color and texture variations. It is made of resin, an acrylic or modified polyester; alumina trihydrate, a filler which allows for a Class 1 Fire Rating; color pigments; and added particles that give a mottled, veined, or textured look to the surface. Solid surface is machinable and can be cut into about any shape imaginable. It also can be heated and molded. Solid surface is the only material that features molded sinks seamed directly to the countertop with no gaps or caulks.