Cuprinol colour over brown

[paul243]

Hi
I have a summerhouse which I have treated over several years with Cuprinol shed and fence preserver(solvent based). Having used a pressure washer to remove dirt and moss etc. I am left with patches of different shades of colour. If I recoat with the solvent based Cuprinol I will simply end up with the same situation, a bit darker.Can I use Cuprinol colours (probably a green shade) which I believe are water based on top of the old Cuprinol preserver? Will it cover evenly?
Thanks

 

[Pigeon85]

Is it the cuprinol shades your referring to? If so then it will cover just may take 2 coats and you may need to give an undercoat first as your going from oil based to water based, depends on what they recommend on the tin.