3M Heat Shrink Tubing EPS-300 Adhesive-Lined, 3:1, Flexible, Polyolefin Data Sheet November 2018 Description 3M Heat Shrink Tubing EPS-300 is a 3:1 thin-wall, flexible tubing offering the advantages of integral, adhesive-lined construction. The tubing is made from flame- retardant, flexible polyolefin with an internal layer of special thermoplastic adhesive. The heat-shrinkable outer wall is selectively cross-linked, while maintaining the high flow and excellent adhesion of the inner sealant liner. When heated in excess of 121C (250F), 3M EPS-300 tubing rapidly shrinks to a skintight fit, forcing the melted adhesive lining to flow and cover the substrate. The adhesive forms a flexible bond with a wide variety of rubbers, plastics and metals. Upon cooling, the adhesive solidifies, forming a permanent, non-drying, flexible and water resistant barrier. Adhesive reflow will occur at temperatures above 80C (176F). Agency Approvals & UL Recognized (all colors except clear), UL File E-157227 at 600 Volts and 125C Self Certifications maximum CSA Recognized, CSA File LR38227 For RoHS and REACH information, please visit www.3M.com/regs Applications 3M EPS-300 tubing offers excellent environmental protection for electronic components, wire splices, wire bundles and harness breakouts. Automotive, truck and marine wiring splices and harness breakouts are quickly and easily protected from harsh environments. Shrink Ratio 3M EPS-300 tubing has a 3:1 shrink ratio. When freely recovered, the tubing will shrink 33% of its as-supplied diameter. The recovered wall thickness of the tubing is proportional to the degree of recovery. The operating temperature range is from -55C (-67F) to 110C (230F), with a shrinking temperature minimum of 121C (250F). 1 of 3 3M Heat Shrink Tubing EPS-300 Not for specifications. Values are typical, not to be considered minimum or maximum. Properties measured at room temperature 73F (23C) unless otherwise stated. Typical Properties Typical Value Physical Property US units (metric) Tensile Strength 2100 PSI Ultimate Elongation 450% Longitudinal Change +1, -15% Secant Modulus (2%) 17,000 PSI Specific Gravity 1.3 Heat Aging (outer wall only) 168 hrs 175C Elongation 175% Heat shock (outer wall only) No dripping, flowing, 4 hrs 225 C cracking Low Temperature Flexibility (outer wall only) 4 hrs -55 C No cracking Self-extinguishing, meets Flammability UL224 All-Tubing Flame Test (jacket) Typical Value Electrical Property (Test Method) US units (metric) Dielectric Strength 700 V/mil 14 Volume Resistivity 10 ohm/cm Typical Value Chemical Property (Test Method) US units (metric) Corrosion Resistance (Copper mirror) Non-corrosive Fungus Resistance Non-nutrient Water Absorption 0.3% Fluid Resistance Excellent Adhesive Typical Value Peel Strength, pli Polyethylene 30 PVC 10 Lead 15 Aluminum 40 Corrosive Effect (Copper mirror) Non-corrosive 2 of 3