Walker Tape®’s Top Priority Bond is our best bet hard bond adhesive for nearly all impossible-to-stick clients. Both waterproof and reliable in tough conditions, Top Priority guarantees a strong and secure bond for users. Keep in mind that since this product is a hard bond and intended for track bonding, it is not skin-safe. Keep the product away from heat, humidity, and light. Store in a well-ventilated, cool, dark, dry, room-temperature controlled environment (60-80°F). Close bottle lids tightly. For the longest shelf life, store hard bond adhesives in a freezer. With proper storage, these liquid products have a shelf life of up to six months.