The seal was holding up really well, but we no longer have that door. 😳
When we were getting some work done with Grand Design RV and Lippert in September of 2020, we opted to test out Lippert's new “weatherproof” door: www.lci1.com/news/lippert-components-unveils-new-weatherproof-ramp-door.
This new door should negate the need for sealing, which is awesome! Time will tell if it lives up to expectations.