Roughcast repair?

[gairloch]

Hi all,

Hoping you can help me out with a small question.

I have to replace a bit of missing roughcast from the corner of my garage, its about 4 inches high by 2 inches across on each side of the corner, and the brickwork beneath is exposed slightly. What would I use to repair this, the cosmetic appearance of the finish doesn't neccesarily bother me too much, just want to get it repaired so it's waterproof etc. Any ideas what I would use, I have some postcrete left from a fence job, might that do? Or should I buy some readymixed cement, or similar?

Any help/advice would be greatly appreciated.

Thanks all

 

[gairloch]

Sorted now

Bought some cement in a little box (polycell?) mixed with water, applied some pva to brick, let dry then added cement. Seems perfectly fine, rock solid.