Heavy-body acrylics are vital for artists who love playing with texture. These paints feature a higher viscosity than liquid paint, which makes them act almost like buttery oils, with improved ability to retain brushwork and knife work once they dry. The very best heavy-body paints should contain no added extenders, opacifiers, fillers, or dyes. They should have outstanding lightfastness and show no cracking even when heavily built up. Achieve bold color and dramatic surface effects with our picks of the best, below.