how can I remove bird droppings stain?

hannahsmamma

I have a nest of feathered lodgers in the eaves of the house.
They are making such a mess on the path, the car, the windows. They won't be here for long before they migrate. I can clean the droppings up but it has left stains on the upvc window-sill. (Yuk!)
So far I have used soapy water, st**drops, biological detergent, it has faded a bit. What can I use to remove the stains? Anyone recommend a product?

evoke

I doubt you'll be able to remove the stains completely if the bird droppings have been there for a while. Bird poo is particularly nasty stuff and works its way through any surface protection.

There are dedicated cleaners designed for a car's paintwork that you could buy and these may improve matters for you.

Autoglym do some bird dropping wipes that may help. I would be tempted to use a very mild polish designed for car paintwork - something like Autoglym Super Resin polish. What you don't want to do is rub the sheen off the uPVC as that'll leave a nasty matte patch.