It was a small  , sloppy test but from the margin in those values ,  I believe we can safely say the Canopy Glue has better adhesion on plastic .

EDIT :  I'm thinking for that tension test labeled #3 , the plastic disk may have had a contaminate on it since the Canopy Glue was able to resist considerably less force than the other examples and those were 2 mm test pieces .

You'd expect a stronger joint from more glue area .

Like I said  , it was a sloppy test .

I didn't do a lot of prep  , just ran a bead of glue and set them in place .