for our last day of term at uni, we are hoping to make a big water slide down our corridor, (about 12m x 2m) the sheet would have to be waterproof as it will be covered in either washing up liquid or baby oil (probably no actual water) at the minute our cheapest material is looking like bin bags and duct tape, but does anyone know of a cheap, plastic like material we could use instead, to avoid the inevitable leaks from the joins?
Go to any builders yard and you can get a massive roll of 1000g plastic which is generally used as DPC (damp proof course) under the floors of buildings. Cost...long time since I bought it about ?30/ or you can buy any length of it you like, off the roll.
How about going to Home Depot and getting a roll of painters plastic? It is a big roll of cellophane.
