Fend is a new kiwi company selling waterproofing and surface protection solutions. Fend Outdoor Surfaces is typically used to protect outdoor items like cladding, monuments, outdoor furniture, etc from moisture and unsightly growth. In this clip it is used for something quite different - Rain Artwork. Using a stencil, Fend is applied to concrete, creating a nanoscopic protective layer which is hydrophobic. The area with Fend applied stays dry in the rain, creating contrast with the wet concrete around it, meaning the artwork appears and disappears with the weather.
Check out Fend at www.buyfend.com