Mar-flex Waterproofing & Building Products is the leading innovator in the waterproofing marketplace, offering products that outshine the competition, such as the extremely popular Mar-flex 5000 membrane. Did you know Mar-flex manufactures the equipment to spray on our membranes? Mar-flex offers everything you need to spray on the membranes correctly and professionally, and all equipment is economically priced, durable, and efficient. Check out our selection today!