? about diy poly torque mount

i did the home made poly mount for my civic, the one thats in front of the tranny, passenger side, i think its a torque mount... 1 question, is that window weld suppost to get hard? or is it always kinda spongey? if it gets hard, how long does it take? if anyone has experience with this please let me know...

heres the link http://importnut.net/motormount.htm

How long have you let it set? I'm pretty sure it takes a couple days to fully cure. I'm currently doing the same to my rear motor mount but i used some urethane window stuff i got from a friends work. I did it yesterday morning and everytime i go to check it its a little stiffer. so i would say it takes a couple days for it to cure currectly. let me know how doing the torque mount feels when its done, i'm thinking about doing it in the future.