Hi. just cleaned and reproofed Boxster roof yesterday using
renovo ultra proof.easy to put on with a paint brush better than a spray
proofer that goes all over the windows and paintwork.
Just allow about 3 hours to dry.

Renovo is by far the best. From all ive used, Renovo outlasts with regards to durability and ive done a fair few roof rejuvenations past and recent. The proofer is second to none. If only cleaning and re-proofing without the re-colouring stage you should be perfectly fine and see great results.