noun
water-based paint; emulsion paint
Refers to paint that uses water as a solvent, as opposed to oil-based paint. Commonly used in DIY and construction contexts.
水性ペンキは油性より乾きが早い。
Water-based paint dries faster than oil-based paint.
壁に水性ペンキを塗った。
I applied water-based paint to the wall.