A multilayer hose is provided with a leak preventative interfacial layer that includes a super absorbent polymer (SAP) interposed between an inner layer and an outer layer. In one embodiment, the inner and outer layers are made of ethylene propylene diene monomer (M-class) (EPDM) rubber, and the interfacial layer is covalently bonded to the inner layer (and, optionally, to the outer layer) via a curing reaction between the EPDM rubber of at least the inner layer and a vinyl functionalized reaction product of alginic acid and acryloyl chloride of the interfacial layer. In addition, a reinforcement layer (e.g., textile filaments braided, knitted, or spirally wound onto the interfacial layer) is disposed between the inner and outer layers. In some embodiments, one or more SAP-equipped multilayer hoses interconnect liquid-coolant cooling system components (e.g., cold plates, headers, manifolds, pumps, reservoirs, and heat exchangers) of an apparatus that removes heat from electronic components.