FULL SHADEP.R.8
TINT
Digital color reference · physical approval required
ORGANIC PIGMENTS
Pigment Red 8
Pigment Red 8 is a Naphthol red with a bluish-red color position. It is used in printing inks and pigment textile printing, with selected grades for water-based coatings. Compare shade and dispersion in the intended vehicle before replacing another Naphthol red.
- Color Index / grade
- P.R.8
- CAS
- 6410-30-6
- Chemical family
- Naphthol pigment
- Published heat resistance
- 150 °C
- Light fastness
- 6 / 8
Typical application scopeCoatings & paint · Printing inks · Textiles & fibers
PRODUCT PROFILE
P.R.8Pigment Red 8 — grade profile
Pigment Red 8 (P.R.8) is a naphthol pigment for Coatings & paint, Printing inks and Textiles & fibers. Compare shade, tinting strength, dispersion and processing stability in the customer’s actual resin or binder rather than relying on one universal value.
Published screening data includes published heat reference 150 °C, light fastness 6/8 and oil absorption 45–55 ml/100g. Application-specific heat and fastness entries in the technical table take precedence.
Primary listed fits include Pigment textile printing; Water-based inks are listed for evaluation.
Selection focus
At equal loading, compare shade, tinting strength, dispersion and resin or binder compatibility, then confirm the required fastness under the final process conditions.
REFERENCE SHADE
Full shade and tint
Bluish 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 Unpublished values are omitted.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 8
Color Index / product gradeP.R.8
Colorant categoryOrganic pigments
CAS number6410-30-6
C.I. constitution number12335
Molecular formulaC24H17ClN4O4
Chemical familyNaphthol pigment
Physical appearanceColored powder
Light fastness6 / 8
Acid resistance5 / 5
Alkali resistance5 / 5
Oil absorption45–55 ml/100g
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
Coatings & paint
Pigment textile printing
—
Printing inks
—
Water-based inks
Textiles & fibers
Pigment textile printing
—
Application listings support initial selection and still require validation in the customer's resin, binder, process and end-use conditions.