I had the feeling it’s all the warm water I used to cleanup.
I had to thin the glue about 3% by volume to have enough time before the gel occurred.
I will try again with no dilution but heating up the substrate with the iron before applying the glue.
The good news is I am gaining more experience. Every time there is something to fix it’s extra bonus in term of learning; a little frustrating but it’s good learning.
Thanks Paul!
Abbas, Castro Valley, CA