It was rendered 10 weeks ago and is awaiting three coats of paint. It faces West-south-west, so it takes full sun all day, and all the rain and wind off the Atlantic. I don't want pure brilliant white which is the only colour stocked in the very technical paint recommended by the plasterer because my neighbours will need sunglasses otherwise it's a minimum of 150 litres (I need 15 or 20) order from the manufacturer. The cost is not a major issue, and the builders' merchant trade paint counter manager is suggesting Dulux Trade All Seasons Weathershield, which has a reasonable 15 yr guarantee. Any thoughts or opinions wise ones?