Liquid Flashing + Fentrim Compatibility – GreenBuildingAdvisor

Quick question for those with experience here… Our sill to concrete foundation is sealed with Siga Fentrim. I just noticed one area where the fentrim got damaged, so I need to repair a 3″ section.

I’m completely out of the Fentrim tape and hoping that either Big Stretch or Prosoco’s R Guard Fast Flash (I have both of these on site) will stick to the Fentrim tape. 

Appreciate any insights here, as I’d like to avoid a special order of Fentrim for this small area.

Thanks,