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Chrome Yellow (PY34)
Pigment Yellow 34 (C.I. 77603) is a yellow Lead Chromate with chemical formula PbCrO4.PbSO4 and a monoclinic to rhombic structure, depending on shade.
CHROME YELLOW (PY34) PRODUCT CHARACTERISTICS
| Series | Heat fastness | Light fastness | Weather fastness | Acid Fastness | Alkali fastness | Cement compatibility | Solvent fastness |
| Conventional (L) |
180ºC, 5 min |
Middle/Lemon = Fair Primrose = Low |
Middle/Lemon = Medium Primrose = Low |
Fair |
Low | Incompatible | Excellent |
| Resistant (R/S) | 200°C-240ºC, 5 min. |
Middle/Lemon = High Primrose =Fair |
Middle/Lemon = High Primrose =Fair |
High | Low | Incompatible | Excellent |
| Nubiterm K | 300ºC, 5 min | High | High | High | Low | Incompatible | Excellent |
CHROME YELLOW (PY34) RECOMMENDED PIGMENTS
- AD-74 – Chrome yellow with a conventional middle yellow shade
- AD-81 – Chrome yellow with a conventional lemon yellow shade
- AL-90 – Chrome yellow with a conventional primrose yellow shade
- AR-73 – Chrome yellow -resistant middle yellow
- ARS-82 – Chrome yellow resistant lemon yellow
- Nubiterm AK-74 – Chrome yellow with high heat fastness, middle yellow
- Nubiterm AK-81 – Chrome yellow with high heat fastness, lemon yellow
N.B. Ferro has not requested the REACH authorization for the use of Chrome Yellows in the European Union.
- Plastics: Polyolefins, PS, ABS, PVC, silicones and rubber
- Coatings: Liquid architectural and industrial, powder, coil and stoving coatings
- Industrial: High temperature processing, only Resistant and Nubiterm grades
VALUE ADDED SERVICES
Advanced Color Matching
Ferro technicians combine their talents with today's most advanced computer color analysis equipment to offer our customers precise color-matching services. Our spectrophotometry process minimizes metamerism, speeds up color matching, ensures consistent quality and helps identify the pigment combination that produces any given color for the lowest possible cost and right performance characteristics, including outdoor durability and NIR reflectance.
Ferro can match your color chip/drawdown or we can refer to complete files of OSHA, Munsel, RAL, Federal Standard 595 Series or Pantone® matching systems to achieve your reference number. All of our colors are matched to Ferro standards or your reference sample, ensuring precise color reproduction from order to order.
Providing Formulation Guides/Assistance with Startup Formula Creation
We assist customers in their product development efforts to ensure regulatory compliance (e.g., usage in food, cosmetics) and desired performance including anticorrosion, outdoor durability and NIR reflectance.
Our laboratory facility teams support customers’ production and development activities, including accelerated corrosion testing, weatherability testing, heat build-up and total solar reflectance testing and migration testing.
Custom Formulations
We work closely with our customers to co-innovate and develop customized high-performing and economical coloring solutions based on application requirements and operational processing needs, including custom formulations for paints, coatings, cement, concrete, inks, ceramics, glass, leather, metal and plastics.
Custom Manufacturing
Ferro provides custom manufacturing services to add value to specific projects, particularly in cases which our production facilities and know-how allow our customers to reach cost-efficiency targets or attain higher performing final products.
Toll Manufacturing
For customers who need additional manufacturing capabilities, we provide a full range of manufacturing capacities, from pilot runs to full-scale production.
