High-temperature processing, tropical developer

To use, soak the exposed film in the prehardener for 10 minutes with moderate agitation. Then drain the film for a few seconds, immerse in water for 30 seconds, drain thoroughly, and immerse in the developer. In general, developers such as Kodak D-76 may be used up to 95F/35C. Above 95F/35C it may be better to use developers specifically formulated for tropical developing (Tropical Developers High-Temperature Processing up to 105F/40C, above). 

High temperature film processing not only now permits film to be processed in the tropics and in high temperature locations but allows the specially hardened emulsions to develop very rapidly with no detrimental changes in their characteristics Color Photography... 

When processing at high temperatures a mildly alkaline, buffered borax developer is recommended. Alkali-free developers of the amidol type or one of the mildly alkaline fine grain developers such as Kodak D-23 are preferable to those with normal alkali content. Additionally, a pre-hardening bath such as Kodak SB-4 Tropical Hardener Bath or a specially formulated tropical developer may be used. 

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