Nylon in water

[not related to]

The customer asked us to drop his nylon parts into water after being ejected. What water temp do you suggest?

[Louis]

Not sure that it would be critical as it is normally done to get the part to absorb water. The water absorption will "soften" the part acting like a plasticizer. I can tell you that the hotter the water, the faster the absorption. Be advised that the part dimensions will change as the nylon absorbs water.

[rickbatey]

Water temp is not critical, but you should set up some sort of timing so that all of the parts get the same amount of time in the water. I molded fans for hedge trimmers years ago: we poured 4 ounces of tap water (you may need some other water source if the parts are light colored) into the box with a poly bag liner. This corrected their issue with the fans breaking when assembled onto the motor shaft via an air cylinder.
The water will increase the impact resistance of the parts, and stop them from being brittle.