南非采购需求：防水防油整理剂、防污整理剂

We're looking to purchase a liquid membrane product with coverage of around 30 square meters. It's essential that the membrane has excellent durability and waterproofing properties, as we'll be using it for a project that requires long-lasting performance. Could you provide details on your available options, including pricing, lead times, and any relevant specifications? Additionally, if you have different types or grades of liquid membranes, please share that info so we can consider the best fit for our needs.