Abstract: A diaper or other fluid arresting cover for a human body, bearing a weak base such as sodium bicarbonate for neutralizing acids in fluids secreted by the human body and intercepted by the fluid arresting cover. The fluid arresting cover may comprise in respective order a first water permeable wicking stratum, a second water permeable wicking stratum of different constituency than the first wicking stratum, a third stratum for absorbing water, a fourth stratum which is water permeable and can wick water to other strata, and a liquid impermeable outer membrane. The weak base may be incorporated into the third stratum or alternatively into the third and other strata. The weak base may be impregnated throughout a stratum or may comprise an exterior coating with adhesive engaging the exterior coating.