Water Jet can Cut the Following Example Materials: 
   
Metals Composites & Plastics Additional Materials
Aluminum Acrylic Carbon Fiber Armor Plate
Aluminum/wire Mesh  Ceramics Bullet-proof glass
Bonded Material Fiberglass Cardboard
Boron Foam Ceramic Tile
Brass Graphite Dichroic Glass 
Bronze Kevlar Expanded Metal
Cast Iron Linoleum Glass
Cobalt Mylar Laminates Granite
Copper Neoprene Hardwoods
Magensium Nylon Honeycomb
Nickel Alloys Printed Circuit Board Limestone
Stainless Steel Plexiglass Marble
Steel Alloy Poly carbonate Porcelain
Steel Hardened Polyethylene Quartz
Steel Hot Rolled Polymers Solid Surface
Steel Mild PVC Silicon
Steel Tool Rubber Terrazzo
Tantalum Silicone  
Tin Teflon  
Titanium Thermoplastics  
Tungsten Urethane  
Iron Vinyl  
Zinc