LEDGlow offers 9 Packets of Adhesion Promoter that creates an extra layer of adhesion between the LED strip and your bike when installing one of LEDGlow's Motorcycle Lighting Kits or Flexible Lighting Strips. This promoter is not required for installation, but gives additional strength to the already included double-sided tape. This adhesion promoter is used to improve the adhesion of the double-sided tape to most plastic materials, as well as injection-molded body side moldings and claddings used for automotive exterior trims.