Accu-Cast 380-CC Alginate is formulated for hand casting jobs. This color-changing alginate tells you when to put your hands in. The 380-CC powder is white. When you add water it changes to a bright bubble-gum pink.
If you're using 80°F water, the pink will fade to white at about 2 minutes 15 seconds. That's when you need to put your hands in.
The alginate should be set (dry on the surface) at 3 miinutes and you can take your hands out at 3 minutes 30 seconds.
With 90°F water, it will fade at ~1:35 and set (dry surface) at ~2:30, with hands "out" at 3:00.
Best when mixed at water/powder ratios between 4:1 and 5:1 (by weight), or about 1:1 by volume.