I don't think its strong enough to do that, damn it I should have thought about that!!
When the base coat had dried I went over the paving slabs with a light blue/grey, the curb using a light grey. Taking a fine brush I painted in between each slab and crack with a dark brown. I dry brushed a dark grey over all the cracks, the tarmac at the back and the edges of the curb. Using a thin brush to dab black into all of the cracks, dry brushed black over the tarmac at the back, dry brushed white over each of the paving slabs to complete the base of this piece.
While this was drying I turned my attention onto the lamppost, painting the bottom and the neck join using the light blue grey, then the rest of it with a light brown, with a coat of metallic silver cover it.
When the lamppost is dry I will see how it looks before starting to weather it.
https://richardscreativeworkshop.co.uk/street-light-diorama/#12_9