Hello

I have some clay pots that I have brought back from Africa, they are clay
that has been fired in a kiln but not glazed.
The clay after firing is a terrcotta colour.

I need to protect them from the UK elements, rain and frost, no room
indoors!

Someone suggested painting them with PVA glue which I have done, when sunny
they have a shine however everytime it rains they turn white!!

Any ideas

Many thanks

Bill H