Im PlastiDiping the reservoir when it gets here during install, I'll let you guys know how it works.
PD is after all meant for shit like this:
Latex-based synthetic rubber formula is flexible and stretchy
Can be sprayed, brushed or dipped onto painted surfaces
Air dries in as few as 30 minutes
11 oz. can provides coverage for up to 5 sq. ft.
Flat sheen
Provides a comfortable, controlled grip that resists moisture, acids, abrasion, corrosion, skidding and slipping
Will not crack or become brittle in extreme weather conditions
Resists chemicals, impact and abrasion
Prevents electrical shock and vibration, resists heat and deadens sound