From our techincal expert -
There are two reasons for UV resin stil bending after curing:
1. You may have just cured the UV resin and taken it out from under the lamp to squeeze and bend it. After 1-3 minutes of curing, the UV resin has not yet reached the state of "fully cured". It is necessary to wait another 1-2 minutes for the resin to be completely cooled before it is completely cured.
2. UV resin article should be poured only 1-3mm, let it cure and then pour another layer of 1-3 mm over it.. If the object is greater than 3mm, no matter what kind of UV resin can not reach a high hardness.
I hope you found the above answers helpful.