It's generally used with a hard bond adhesive for permanent attachments. German Brown is applied directly to the hair system and attaches more firmly to the hard bond adhesive than other types of tape. Generally, a hard bond adhesive fails due to the tape it is attached to. With German Brown, you don't have to worry about the hard bond disconnecting from the tape. Use a poly or lace system with a poly strip where the adhesive will sit. Hold Extended Wear (1-2 weeks) tapes are great for people who need something more than just for day-to-day wear but are not looking for a very long-term hold. This is a popular type of tape because many people re-apply their units in under two weeks.