WATERPROOF --- Polyamide hot melt adhesive provides excellent waterproof property, can be ideal used in marine and automotive applications. HIGH QUALITY --- Comply with all relevant European standards: Thermal shrink tubing guarantees high tensile strength and protects it from mechanical and elastic damage; Thick copper barrel ensures each crimp safe without being destroyed, increases current, decreases voltage drop. DURABLE --- Excellent elasticity and resistance to mechanical damage; Ideally translucent provides tensile strength; High elasticity maintains stable performance. USE --- For best results, use a heat gun until it shrinks in size and the adhesive flows, filling any gaps in the terminal; Operating temperature: -55 125; Minimum shrink temperature: 80C; Total recovery temperature: 130C.