CUT. PUSH. DONE. The SharkBite Silicone Wrap, a non-adhesive, self-fusing silicone tape that protects brass fittings from contaminants that can be found in ground conditions. Required when burying SharkBite brass fittings underground. The SharkBite Connection System makes any plumbing project fast and easy thanks to unique push-to-connect technology. When you insert a pipe into a SharkBite quick-connect fitting, the fitting's stainless-steel teeth bite down and grip the pipe, while its special O-ring compresses to create a watertight seal.