Pigment Red 57:1, Red 4BP
Briefing
Pigment Red 57:1 is a bluish red pigment and has excellent dispersibility. Application is Rubber, Fiber, Polyolefins, PUR, PVC. Comparable with BASF K4270.
P.R.57:1 is the most blue among the azo lake pigments and it’s cost effective.
P.R.57:1 is not suitable for use in concentrations below approximately 0.03% and only use in deep color.
P.R.57:1 is heat stable up to about 220°C-240°C/5min in polyolefin and nose dive when concentration below 0.1%.
Chemistry
Synonym name: Fast Rubine Red A6B, red 4BP, C.I.Pigment Red 57:1, P.R.57:1, PR 57:1, C.I.15850:1
CAS Number: 5281-04-9
EU Number: 226-109-5
Chemical Family: Mono azo
Chemical Structure
Application Data
Heat Resistance In HDPE
| HDPE | Heat resistance | 240 |
| Fastness to migration | nt | |
| Light Fastness FS/WR | 6/4 | |
| Weather Fastness FS/WR | nt | |
| Warpage in HDPE | high | |
| PVC | Fastness to migration | nt |
| Light Fastness FS/WR | 6/4 | |
| Weather Fastness FS/WR | nt | |
| Application | Polyolefins (PP/HDPE/LDPE/LLDPE) | ● |
| PVC | ● | |
| PUR | ● | |
| Engineerings | – | |
| Styrenics | – | |
| Elastomer&Rubeer | ● | |
| Fiber（PE/PP/PA） | ○ |
●Suitable, ○ Limited suitability, – Not suitable, nt-Not tested *Specific information available on request