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Sprint Systems of Photography Block Stop Bath for Black & White Film and Paper - 20 Liters

B&H # SPBS20L Mfr # SB020-R
In Stock
Shipping Charges Apply
You Pay: $57.29

Sprint Block Stop Bath is a buffered, vanilla scented stop, which Safely and effectively stops development and adjusts the ph of b&w films and prints without unpleasant side-effects.

An indicator color signals exhaustion in b&w printing solutions. This stop dilutes in a 1-9 ratio.

Using Block: In conventional stop baths, the acid ingredient which stops development is hazardous and 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 and 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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by PowerReviews
Sprint Systems of PhotographyBlock Stop Bath for Black & White Film and Paper
 
5.0

(based on 2 reviews)

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Reviewed by 2 customers

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5.0

Better than advertised

By Mr. 'D'

from Toledo

About Me Pro Photographer

Verified Buyer

Pros

  • Consistent Reactions

Cons

    Best Uses

    • Printing

    Comments about Sprint Systems of Photography Block Stop Bath for Black & White Film and Paper:

    My high school students completely appreciate the ease of this stop bath as well as the "lovely bouquet".

    • Was this a gift?:
    • No

    Share this review

     
    5.0

    This stuff is great! Safe and ez

    By ben

    from twin falls, idaho

    About Me Pro Photographer

    Verified Buyer

    Pros

    • Consistent Reactions

    Cons

    • Box is flimsy
    • Using handle destroys box

    Best Uses

    • Developing
    • Enlarging
    • Photography
    • Printing

    Comments about Sprint Systems of Photography Block Stop Bath for Black & White Film and Paper:

    to stop development. Smells like vanilla, is not acetic acid, color coded. Safer for students

    Share this review

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