Cleanroom Carts . com by South Coast Enterprise (SCE) offers a full line of cleanroom-safe polypropylene or stainless steel carts for today’s most demanding manufacturing and laboratory environments. Every SCE cleanroom cart stands up to the most stringent cleanroom and safety requirements. Polypropylene or stainless materials offers the idea cart material for transport of critical products and finds many uses in semiconductor grade class 1 and biomedical grade cleanrooms. Now you can have years of clean, particle free and safe transport of your sensitive products without the rusting and due to painted metal construction or the delaminating of wood core laminated products.