Follow the mfy's recommendation and instruction on the paint. But I used enamel paint, hand brushing, suitable for wood/metal/wall. More resistant to moisture. I diluted it with turpentine but I was wrong, the instruction said no need to dilute, very long curing time and uneven paint.

油漆一問：請教下如果用電動泵噴油，木器製品是否用手掃漆呢？假如用水性手掃漆的話，仲要唔要加水去開油？
先謝謝大家。