Sprint Block Stop Bath, Vanilla Scented Indicator Stop Bath for Black & White Films and Papers, 1 Liter
Description
- One liter of BLOCK Stop Bath concentrate will make 10 liters of working solution, enough to process (600) 8×10 fiber prints or (900) 8×10 resin-coated prints or (600) rolls of 35mm, 36 exposure film.
- Stored as concentrate or working solution, with or without air in the container, BLOCK Stop Bath has a shelf life of at least 2 years.
- BLOCK Stop Bath may be converted into a hardening stop bath for sepia toning, or to replace hardening in the fixer if sulfur dioxide vapors must be minimized
In conventional stop baths, the acid ingredient which stops development is hazardous, unpleasant to use and can damage prints. Acid can break down print sizing which normally protects fibers from fixer thiosulfate contamination, a major cause of deterioration. Plain water stop baths eliminate the side-effects of acid, but do not stop development as effectively, and can cause stains, emulsion swelling and reticulation. BLOCK is an acid solution, but the acids are buffered to minimize the side-effects. Buffering protects print fibers for greater permanence, reduces emulsion swelling, staining, reticulation and eliminates odors. BLOCK will also prevent carbonate gas ruptures of films (pinholes) when used as directed.
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