Rebuilt snorkel flange

I just rebuilt the flange on my inlet snorkel after ten years of service. It was never flat when new - I slathered on some silicone and bolted it on.

So I cleaned up the flange and here is the result:


I call this a reverse layup:
Clean flat sheet of glass.
One layer of dry peel ply
Two wetted laters of bid
A thick layer of peanut butter like micro ballons
Wet the face of the old snorkel flange with epoxy , then press it into the goo and wait overnight to clean it all up.

This baby is flat!