The engineer compared the impermeabilities of several coating materials before selecting one for the bridge.

The impermeant dye stayed confined to the lumen of the vesicle, unable to cross the membrane.

The scientist coated the fabric with an impermeable layer to keep moisture out.

The impermeability of the new composite coating prevented any water from seeping through the hull during the storm.

The technician sealed the sample container impermeably before sending it to the laboratory to ensure no contaminants entered.

The impermeableness of the outer shell ensured our equipment remained dry during the storm.

The impermeators were applied to the basement walls to prevent water seepage during the rainy season.

The engineer inspected the impermeator before starting the boiler to ensure the cylinder would receive a steady supply of oil.