These canvases were primed with a base coat of deep maroon paint in rabbit skin glue.
这些油画底漆是深栗色的兔皮胶底漆。
英语百科
Dermal adhesive
（重定向自Skin glue）
A dermal adhesive (or skin glue) is a glue used to close wounds in the skin, as an alternative to sutures, staples or clips.
Glued closure produces less scarring and is less prone to infection than sutured or stapled closure. There is also no residual closure to remove, so follow-up visits for removal are not required.