i have a job to do over the summer where the roof on the house has been bodged and water has trickled down the wall between the 1st and 2nd coat as a result of this and the bad weather we have had over the winter most of top coat has blown the top coat comes off a treat but scratch is abit more stubborne i would prefere to remove it all but i am on a price
.now i was wanting to spray the top coat with cpi gp mortar but its obviously over a s&c scratch has anyone ever tried this and to what effect .
