I want create a small statue with a set of gargoyle\bat like wings that are outstretched, but which curve inwards. The total span of each win will be less than 8" (≈ 20 cm) from base to tip.
Ideally I'd like to cast the wings using a clear two part epoxy resin with a recommended mixture of equal parts by volume A and B, and to color them with alcohol based ink and containing light refracting particles so that they appear to glow when a light is shined through them from embedded LED lights.
I have achieved this effect before with other statues so I know that I can achieve this effect.
My problem is that when trying to cast a thin curved object like this, using a two part mold will A) be very hard to get right and B) require a lot of casting silicon.
I would like to attempt to cast the wings flat, and then to remove them from the mold before they have fully hardened, and introduce the cure manually by bending them.
This would need the resin to be touch dry so that the details are not destroyed when the bend is introduced, but not fully hardened.
I know that this is possible as I've previously accomplished the effect by accident—though I am not certain how. Possibly through contamination or incorrect mixing (cast models sagging, and then hardening to normal levels later on so that they cannot be un-sagged).
Are there any known techniques, such as using incorrect proportions, or mixing in additional chemical agents, that would allow the resin to remain pliable after setting, and then set fully later on?