stripping agent

stripping agent

[′strip·iŋ ‚ā·jənt] (textiles) A substance used to remove dyes from fabrics so that they can be redyed, for example, sodium hydrosulfite, titanous sulfate, and sodium and zinc formaldehyde sulfoxylates.

release agent

In formwork, any material that is used to prevent the bonding of concrete to a surface.