I have used Small Parts for several projects over several years and this Polycarbonate (PC) Sheet, Transparent Clear, Standard Tolerance, ASTM D3935, 1/4" Thickness, 12" Width, 24" Length, just makes me happy I've discovered this fantastic source of these products.  This polycarbonate sheet is just what I need to fab up a base and support for my kayak rudder, I am designing.  Easy to cut or file and if needed even bend with heat.  I have purchased SCIGRIP 16 10315 Acrylic Cement, Low-VOC, Medium bodied, 5 Ounce Tube, Clear to make my bonds an they are strong with proper preparation of the surfaces to be joined.  I really like the product.  Another feather in the hat for Small Parts!