It is a strong self-amalgamating silicone tape which seals with itself without adhesive. It is applied with tension by wrapping the tape around itself. Xtreme Conditions HD creates a water tight, permanent sealing. No drying time is required. Its flexible material can be applied smoothly on any kind of surface, including wet or warm, dirty or oily. Xtreme Conditions can even be applied under water.

Due to its silicone backing the tape has an excellent resistance to various chemical substances, oils, acids, solvents, salt water, UV radiation and extrem temperatures.