Cross-linked polyolefin tubing in these connectors is stronger than PVC and won't burn. The heat-activated adhesive lining seals against salt water, oil, acids, and sunlight, and relieves strain. The nylon insulator, favored by experts, offers Marine Grade™ resistance to sunlight, water, oil, chemicals, vibration, and cut-through damage. These connectors are UL Listed and CSA Recognized. They have a high shrink ratio, shrinking to 1/3 of their original size at 257°F/125°C. They operate in a temperature range of 40°C to 110°C. Ancor heat shrink connectors have built-in heat-activated adhesive. They shrink to form a watertight seal and provide excellent vibration and strain relief. They're tinned for corrosion resistance, made of pure copper for maximum current flow, and have a brazed seam for strength. Available in different wire ranges and quantities per pack: 12-10 gauge (3-5 mm) in 500 and 100 packs; 16 - 14 gauge (1-2 mm) in 100 and 500 packs; 22 - 18 gauge (0.3-0.8 mm) in 500 and 100 packs.

Using these Ancor heat shrink butt connectors is easy. First, select the right connector for your wire gauge from the available options. Strip the ends of the wires you want to connect. Insert the wires into the connector. Then, use a heat gun to apply heat evenly around the connector. The heat shrink tubing will start to shrink and the adhesive inside will melt, creating a strong, watertight seal. Make sure to keep the heat gun moving to avoid overheating one spot. When it comes to maintenance, these connectors are quite durable. However, it's a good idea to check them periodically for any signs of damage, especially if they're exposed to harsh conditions. If you notice any cracks or signs of wear, replace the connector. Keep them stored in a cool, dry place when not in use to prevent damage.