Sprint/Nextel Block Stop Bath Vanilla Scented Indicator 1L film camera

Sprint Block Stop Bath vanilla indicator

Sprint Block Stop Bath is a buffered-acid stop bath concentrate for black-and-white film and paper processing. The vanilla-scented indicator changes colour when the solution is exhausted, giving a clear visual cue during development. It is designed for darkroom users who want a low-odour alternative to traditional acetic-acid baths. One litre of concentrate makes 10 litres of working strength solution.

Thermals noise and power

As a liquid chemical concentrate, the product generates no heat, noise or electrical draw during use. It is mixed with water at room temperature and used in standard developing trays or tanks. The buffered formula reduces the risk of print damage compared with harsher acid baths. No special ventilation or power supply is required for normal darkroom operation.

Replaces acetic acid stop baths

This concentrate replaces conventional acetic or citric acid stop baths in black-and-white workflows. The switch is worthwhile for printers who want an exhaustion indicator and a milder scent without changing development times. It is not suited for colour processes or for users who prefer an odourless, non-indicating bath. The 10-to-1 dilution ratio keeps running costs predictable for high-volume printing.