3M™ SMS Heat Shrink Tubing is a 4:1 black semi-rigid, co-extruded, dual wall product. It is a composite of a polyolefin shrinkable outer wall and a thermoplastic adhesive inner wall.
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SMS tubing does not degrade when exposed to automotive and marine environments and is not affected by severe vibration, extreme temperature changes, moisture or automotive fluids. Semi-rigid SMS tubing is ideal for applications requiring moisture sealing, mechanical protection and strain relief. Color code: .220 - Yellow, .300 - White, .350 - Green, .450 - Red, .700 - Orange.
