There are a host of small JOTUN outlets around Doha that sell paint very cheaply (compared to UK and Ireland). There is one across the road from the Beverly Hills al Rayyan compound on the way to AL Rayyan service stations (through road works) from sports round about towards Al Rayyan pass by new D ring flyover across next RO and its on the left. There is also one in the new Gharrafa shopping area the other side of slope roundabout turn right at Sidra toward north road and its on the right past macdonalds