R-821
R-821 Pure black
R dye series. The original product document describes this grade as Pure black. See the documented properties and applications below.
Technical Overview
Product FamilyR dye series
Documented DesignationPure black
Water resistance5
Acid resistance (source column 1)6
Acid resistance (source column 2)5
Wash resistance3
Dry-cleaning resistance4
Toluene resistance3
Documented Direction
R dye series. The original product document describes this grade as Pure black. See the documented properties and applications below.
Documented properties: Water-based leather finishing (series-level application).
Applications
Genuine Leather
Source: Genuine-leather coating materials supplement. Values reflect the supplied document; confirm the current grade specification.