Removing green lichen / mildew safely from rubber seals

[YorkshireBloke]

Hi,

I bought my 3.7 from an owner from Devon who then moved to France. He fixed some common problems but wasn't a cleaning fanatic...

I clay barred and waxed the car but held off cleaning the green growth from the rubber seals on the sunroof etc. This is the stuff you see on caravans not regularly used and stored in the shade.

Any tips on cleaning the rubber? I have mould remover for the house (double glazed homes can trap condensation) but am hesitant to proceed.

Any ideas?

Robert