Glyoxal trimer is probably similar to the Formaldehyde trimer that forms from Formaldehyde. I have never worked with the trimer, but I can tell you that it must be hydrolyzed to the monomer before it can work properly. The Formaldehyde trimer works but much more slowly than Formaldehyde itself.

That is about all I can tell you, never having worked with it before.

PE