Coated in acrylic, this sleeving holds up to rapid temperature changes, and it won’t break down from refrigerants, solvents, oil, or lubricants. Also known as hermetic sleeving, it’s designed to protect wires and hose inside air-tight motors, such as those used in air conditioners. It’s made from strong and flexible fiberglass fabric, so you can bend it into tight spaces. Because this sleeving is non-expandable, it does not stretch, so it’s best for applications where you know the exact diameter of the items you need to protect. It’s compatible with potting compounds and varnishes.