3M Heat Shrink Tubing EPS-400 Adhesive-Lined, 4:1, Semi-Rigid, Polyolefin Data Sheet November 2018 Description 3M Heat Shrink Tubing EPS-400 is a medium-wall, semi-rigid 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 the adhesive maintains high flow and excellent adhesion characteristics. When heated in excess of 121C (250F), EPS-400 tubing rapidly shrinks to a skintight fit, forcing the melted adhesive to flow and cover the substrate. 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 & Meets requirements of: Self Certifications UL Recognized, UL File E-157227 at 600 Volts and 125 C maximum CSA Recognized, CSA File LR38227 For RoHS and REACH information, please visit www.3M.com/regs Applications 3M EPS-400 tubing offers excellent environmental protection for electronic components, wire splices, wire bundles and harness breakouts. Automotive, truck and marine wire splices and harness breakouts are also quickly and easily protected from a variety of harsh environments. Shrink Ratio 3M EPS-400 tubing has a 4:1 shrink ratio. When fully recovered, the tubing will shrink 25% 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 110 C (230F), with a shrink temperature minimum of 121C (250 F). Ordering Total Recovered Meltable Standard Sizes and Expanded I.D. Recovered I.D. Size Wall Thickness Recovered Wall Dimensions (Minimum) (Maximum (Nominal) (Nominal) Thickness In. (mm) In. (mm) In. (mm) In. (mm) .300 .300 (7,62) .060 (1,52) .033 (0,84) .028 (0,71) .350 .350 (8,89) .080 (2,03) .038 (0,97) .033 (0,84) .450 .450 (11,43) .105 (2,67) .043 (1,09) .053 (1,35) .700 .700 (17,78) .175 (4,45) .060 (1,52) .055 (1,40) 1 of 3 3M Heat Shrink Tubing EPS-400 Typical Properties Not for specifications. Values are typical, not to be considered minimum or maximum. Properties measured at room temperature 73F (23C) unless otherwise stated. Typical Value Physical Property US units (metric) Black and other color- Color coded sizes Tensile Strength 1900 PSI Ultimate Elongation 400% Longitudinal Change +1, -10% Secant Modulus (2%) 33,000 PSI Specific Gravity 1.25 Heat Aging (outer wall only) 168 hrs 175C Elongation 175% Heat shock (outer wall only) No dripping, flowing, cracking 4 hrs 250 C Low Temperature Flexibility (outer wall only) No cracking 4 hrs -55 C Flammability Self-extinguishing 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