Platinum palladium printing is a highly esteemed alternative photographic process, celebrated for its unparalleled archival permanence, exquisite tonal subtlety, and unique aesthetic qualities. Achieving these remarkable results hinges on selecting and utilizing the correct platinum palladium printing supplies. Whether you are a seasoned printmaker or just beginning to explore this beautiful craft, having a comprehensive understanding of the necessary materials is fundamental to your success.
Understanding the Platinum Palladium Process
Before diving into specific platinum palladium printing supplies, it is helpful to grasp the basics of the process. This method involves coating a sheet of paper with a light-sensitive solution containing platinum and/or palladium salts, along with a ferric oxalate sensitizer. Upon exposure to ultraviolet (UV) light, the ferric oxalate reduces the metal salts, embedding them directly into the paper fibers. The resulting image is not suspended in an emulsion but is physically part of the paper, contributing to its extraordinary longevity and matte finish.
The nuances of this technique demand precision and quality in every component, making your choice of platinum palladium printing supplies paramount. Each item plays a critical role in the chemical reactions and physical manipulation that define the final print.
Key Platinum Palladium Printing Supplies You Will Need
Embarking on platinum palladium printing requires a specific set of platinum palladium printing supplies. These materials are specialized and contribute directly to the quality and longevity of your prints.
Platinum and Palladium Salts
Potassium Chloroplatinite (K2PtCl4): This is the primary source of platinum. Platinum prints are known for their cool, neutral tones and exceptional permanence.
Palladium Chloride (PdCl2): Palladium offers warmer tones, often described as sepia or chocolate brown. It is also more affordable than platinum. Many artists use a combination of both for a balanced tonal range, making these crucial platinum palladium printing supplies.
Ferric Oxalate
Ferric oxalate is the sensitizer that makes the metal salts light-sensitive. It comes in various concentrations, typically 20% or 30%. The quality and freshness of your ferric oxalate significantly impact the print’s density and contrast. It is one of the most critical platinum palladium printing supplies, as it initiates the photochemical reaction.
Sensitizer Mixing Tools
Graduated Cylinders or Pipettes: For precise measurement of platinum/palladium solutions, ferric oxalate, and other additives.
Small Mixing Vials or Beakers: To combine the sensitizer components accurately before coating.
Glass Stirring Rods: For thorough mixing without contamination. Cleanliness of these platinum palladium printing supplies is paramount.
Paper Choices for Platinum Palladium
The paper chosen for platinum palladium printing must be unbuffered, unsized, and made from 100% cotton rag. It must also be able to withstand wet processing without tearing or buckling. Popular choices among platinum palladium printing supplies include:
Arches Platine
Revere Platinum
Rives BFK
Canson Platine Fibre Rag
Each paper interacts differently with the sensitizer and metals, influencing the final print’s texture and appearance.
Processing Chemicals
After exposure, prints undergo a series of chemical baths. These platinum palladium printing supplies are essential for developing and clearing the image.
Developer: Typically potassium oxalate or ammonium citrate, which reduces the exposed ferric oxalate to metallic platinum/palladium. The choice of developer influences the print’s contrast and tone.
Clearing Agents: Such as dilute hydrochloric acid or EDTA solution, used to remove unexposed ferric oxalate from the paper fibers. Multiple clearing baths ensure the print’s archival stability.
Washing Aid: A final wash in distilled or deionized water removes residual chemicals, making these platinum palladium printing supplies crucial for longevity.
Exposure Units
Platinum palladium printing requires a strong UV light source. Common options for exposure units include:
UV Blacklight Units: Dedicated UV light boxes designed for alternative processes.
Sunlight: A natural, free source, though variable in intensity. However, for consistent results, a controlled UV unit is often preferred when working with platinum palladium printing supplies.
Vacuum Frame: Ensures perfect contact between the negative and the sensitized paper, preventing light scatter and ensuring sharp images.
Darkroom Essentials
While not strictly a darkroom process in the traditional sense, a controlled environment is necessary. Basic darkroom platinum palladium printing supplies include:
Trays: For processing chemicals and washing.
Gloves and Aprons: For personal protection, as some chemicals are hazardous.
Safe Light: A very dim incandescent bulb or amber LED can be used, as the sensitized paper is primarily sensitive to UV light.
Drying Racks or Screens: For air-drying prints evenly.
Sourcing Quality Platinum Palladium Printing Supplies
The quality of your platinum palladium printing supplies directly impacts the success and beauty of your prints. It is advisable to purchase chemicals from reputable suppliers specializing in alternative photographic processes. Fresh chemicals are key, especially ferric oxalate, which can degrade over time. Investing in high-grade materials will prevent frustration and yield superior results.
Many suppliers offer kits that include all the necessary platinum palladium printing supplies to get started, which can be an excellent option for beginners. As you gain experience, you might prefer to source individual components to tailor your process.
Tips for Working with Platinum Palladium Printing Supplies
Working with platinum palladium printing supplies requires attention to detail and careful handling. Here are some tips to ensure a smooth process:
Maintain Cleanliness: Any contamination can affect the print quality. Ensure all tools, trays, and work surfaces are meticulously clean.
Work in Low Light: While the sensitizer is primarily UV sensitive, it’s best to mix and coat paper under subdued incandescent or amber safelight conditions to prevent premature exposure.
Store Chemicals Properly: Keep platinum palladium printing supplies, especially sensitizers and developers, in cool, dark places in airtight containers to prolong their shelf life.
Experiment with Ratios: The ratio of platinum to palladium, and the concentration of ferric oxalate, can be adjusted to control tone and contrast. Don’t be afraid to experiment to find your preferred aesthetic.
Embrace Digital Negatives: Creating digital negatives allows for precise control over contrast and density, significantly enhancing the platinum palladium printing process.
Conclusion
The art of platinum palladium printing offers a unique journey into photographic expression, yielding prints of unmatched beauty and permanence. By carefully selecting and understanding your platinum palladium printing supplies, you lay the foundation for truly exceptional work. From the precious metal salts and sensitizers to the choice of fine art paper and precise processing chemicals, each component contributes to the magic of this historical process. Invest in quality, practice diligently, and prepare to create timeless images that will captivate for generations.