So in the case of a 2:1, when shrunken, it is half the size of the original. The 1 following after refers to its contracted form when heat is applied. In a 4:1, it is four times as large as its shrunken form. In a 3:1, it is three times as large as its shrunken. In a 2:1, the 2 represents that the heat shrink is 2 times or twice as large as its shrunken form. When referring to shrinking ratios, such as 2:1, 3:1, or 4:1, the first number refers to the original heat shrink tubing before its shrunken form. By doing this, it forms a protective barrier around electrical connections, such as wires or cables, molding into a secure entity. The basics behind heat shrink tubing is that it shrinks or contracts when heat is applied to it. The heat shrink sleeve tubing provides a 2:1 shrinkage ratio and is TAA compliant and an UL recognized component. Pre-cut in 4 inch strips, these heat shrink tubings come in an assorted color and size that's ideal for installers and DIYers. Featuring a flame retardant polyolefin tubing that is highly resistant to common fluids and solvents, these heat shrink sleeve tubings provide a solution where electrical insulation, repairing wire disconnects, and protecting wires is needed. 4 inch Pre-Cut Heat Shrink Sleeve Tubing Assorted Size Set, 2:1, 160pcs - Assorted Colorsįor protecting and sealing electrical connections, these pre-cut heat shrink sleeve tubings are the perfect choice.
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