Photographers' Formulary 1lb Aluminum Sulfate Photographic Hardener

Key Features

• Achieve optimal image quality with this 1lb of Photographers' Formulary Aluminum Sulfate.
• Use as a hardener to improve your prints' archival properties for lasting results.
• Mix easily to create custom solutions; substitute 2 parts for 3 parts alum.
• Ensure chemical consistency in every batch with our high-quality Aluminum Sulfate.
• Extend the shelf life of your prints using this reliable photographic hardener.
• Perfect for darkroom enthusiasts needing a dependable black-and-white chemical.