Ok, so apparently Dragon Skin silicone doesn’t cure when in contact with (hardened!) UHU por glue.
I tried to cast a mould of a flat thing I glued to some cardboard to keep it in place, and right where it seeped under the object a bit, along the edges, it did not properly harden.
Haven’t tried how it responds to other (uhu) glues yet. A heads up for mould makers I guess?Moulding Moldmaking Dragon Skin Silicone Silicone Tips & Tricks Learn From My Mistakes UHU Por Glue Blog Post Puppit Productions