Heat shrink tubing is a small but powerful component in any electrical or automotive project. It insulates, protects, seals, and organizes wires — and in 2025, demand is growing for safer, smarter, and more sustainable options. Whether you're working on a wiring harness, marine-grade project, or need a moisture-proof seal in an automotive fuse panel, heat shrink tubing is essential. In this blog, we’ll walk you through the different types, ideal use cases, how to select the right one, and the new trends reshaping the industry — plus why Crowbar Electrical Parts is the go-to source.