Pigments Lightfastness Permanence Transparent/Opaque PY83, PR101, PG7 ASTMI **** (excellent) Transparent ASTM Approved Permanent Colours American Society for Testing and Materials, conforming to standard D4302-90.
Pigments Lightfastness Permanence Transparent/Opaque PY83, PR101, PG7 ASTMI **** (excellent) Transparent ASTM Approved Permanent Colours American Society for Testing and Materials, conforming to standard D4302-90.
Pigments Lightfastness Permanence Transparent/Opaque PY83, PR101, PG7 ASTMI **** (excellent) Transparent ASTM Approved Permanent Colours American Society for Testing and Materials, conforming to standard D4302-90.
