To do this test I decided to try with both salt and tap water. I grabbed my newest instant camera, the Polaroid 600 SE and headed for the beach (more like rocks and kelp) to shoot a couple of images. I quickly fired two snapshots of a nearby forest and peeled them apart after two minutes, put one negative in salt and one in tap water. I used my wifes food canisters, almost the size of a negative 😉
Almost instantly the chemistry started to mix with the salt water and colouring the water inside the canister brown. Nothing happened with the tap water though.
About 26 hours later I returned to check my two negatives and the tap water was coloured brown, the salty had a brown-green colour to it. The leftover paper had come off and the two negs had sunk to the bottom. I couldn’t see any damage to the negs, both looked fine after spending so much time in water.
Next phase was development. If you are familiar with how to develop a FP100c negative you can skip this section, however to develop all you need is chlorine gel, a gas mask (optional), a sponge and some masking tape. Here’s the recipe:
1. Tape the negative with the black side up to a surface.
2. Put a tiny amount of chlorine gel on top of the black surface.
3. Gently rub the gel into the black using a sponge, it shouldn’t take you more than 20 seconds.
4. Release the negative and wash away all the black goo under luke warm water.
5. Hold it up to the light and you got your own FP100c colour negative