Coleman Cable 234250408 SJEOOW Seoprene Cable, Black, 18/4, 250-Foot. 250-foot spool of wire. SJEOOW SEOPRENE , AWG size: 18/4. fully annealed stranded bare copper Class K stranding per ASTM B 174. Insulation is tprene oil resistant thermoplastic elastomer (tpe) brilliant colors for easy identification. Jacket is water, sunlight, and oil resistant, flame-retardant black seoprene thermoplastic elastomer (tpe). Excellent abrasion, ozone, sunlight, chemical and oil resistance, and water resistant with superior flexibility. 18/4 SJEOOW SEOPRENE 250R. The Coleman Cable (R) brand is a registered trademark of Coleman Cable Inc.