FULL SHADEP.R.185
TINT
Digital color reference · physical approval required
HIGH-PERFORMANCE PIGMENTS
Pigment Red 185
Pigment Red 185 is a benzimidazolone carmine used in printing inks, coatings and plastics. It offers a red-to-carmine option where light and migration behavior form part of the selection criteria. Confirm the commercial grade in the intended polymer or ink vehicle.
- Color Index / grade
- P.R.185
- CAS
- 51920-12-8
- Chemical family
- Benzimidazolone pigment
- Published heat resistance
- 250 °C
- Light fastness
- 8 / 8
Typical application scopePlastics & masterbatch · Coatings & paint · Printing inks
PRODUCT PROFILE
P.R.185Pigment Red 185 — grade profile
Pigment Red 185 (P.R.185) is a benzimidazolone 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 250 °C and light fastness 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
Carmine 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 Unpublished values are omitted.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 185
Color Index / product gradeP.R.185
Colorant categoryHigh-performance pigments
CAS number51920-12-8
C.I. constitution number12516
Molecular formulaC27H24N6O6S
Chemical familyBenzimidazolone pigment
Physical appearanceColored powder
Heat resistance · catalogue reference250 °C
Light fastness8 / 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.