Liquid Chemistry
For Black and White Films and Prints
Q: How do I know when my Sprint working solutions are exhausted?
Sprint BLOCK Stop Bath, in working solution form, will change from yellow to lavender when exhausted. When using BLOCK, QUICK SILVER Print Developer, and RECORD Speed Fixer simultaneously, the lavender colored exhaustion of Block will signal exhaustion in all three solutions.
For shelf life purposes, Sprint ARCHIVE Fixer Remover also has a color indicator which turns from blue to green to yellow as the life of the product progresses. ARCHIVE should be replaced when it turns yellow.
