Folded Sweep floats on water to absorb oily spills and even surface sheen. Sturdy nylon strap securely attaches durable Oil-Only Protector™ Mat to your sorbent boom for a complete waterborne cleanup. Heavy oils adhere, while water is repelled, so Sweep won’t become weighed down and capacity won't be wasted. This means you can leave it in place longer for maximum effectiveness. White color designates Oil-Only sorbency and makes it easy to identify when Sweep is saturated.