FULL SHADEP.R.179
TINT
Digital color reference · physical approval required
HIGH-PERFORMANCE PIGMENTS
Pigment Red 179
Pigment Red 179 is a perylene red used in automotive finishes, industrial coatings and plastics. It is selected for deep red coloration where weathering and solvent resistance matter. The required transparency and full-shade appearance should be confirmed in the chosen commercial grade.
- Color Index / grade
- P.R.179
- CAS
- 5521-31-3
- Chemical family
- Perylene pigment
- Published heat resistance
- 200 °C
- Light fastness
- 7–8 / 8
Typical application scopePlastics & masterbatch · Coatings & paint · Printing inks
PRODUCT PROFILE
P.R.179Pigment Red 179 — grade profile
Pigment Red 179 (P.R.179) is a perylene pigment for Plastics & masterbatch, Coatings & paint and Printing inks where processing stability and durability are defined selection criteria. Evaluate the grade in the intended resin or binder at the target loading and process conditions; every value below retains its published source and application context.
Published screening data includes published heat reference 200 °C and light fastness 7–8/8. Application-specific heat and fastness entries in the technical table take precedence.
Primary listed fits include General plastics screening, General coatings screening and General printing-ink screening.
Selection focus
At equal loading and dispersion, compare full shade, tint, transparency or opacity, heat stability, migration and the intended exposure conditions.
REFERENCE SHADE
Full shade and tint
Perylene red
Full shade
Tint / reduction
Manufacturer-published shade descriptions were used to correct the color direction. Screen colors remain visual references, not batch standards; approve a physical drawdown or molded plaque under agreed test conditions.
TECHNICAL DATA
Published specifications
Only identified or numerical fields supported by public registry and product-table data are shown. Unpublished values are omitted.
ParameterPublished value
Product namePigment Red 179
Color Index / product gradeP.R.179
Colorant categoryHigh-performance pigments
CAS number5521-31-3
C.I. constitution number71130
Molecular formulaC26H14N2O4
Chemical familyPerylene pigment
Physical appearanceColored powder
Heat resistance · catalogue reference200 °C
Light fastness7–8 / 8
Water resistance5 / 5
Oil resistance5 / 5
Acid resistance5 / 5
Alkali resistance5 / 5
Performance values are catalogue references. The current grade TDS, test conditions and agreed batch COA govern product approval.
APPLICATION CHART
Recommended systems at a glance
Application areaRecommendedEvaluate
Plastics & masterbatch
General plastics screening
—
Coatings & paint
General coatings screening
—
Printing inks
General printing-ink screening
—
Application listings support initial selection and still require validation in the customer's resin, binder, process and end-use conditions.