I bought 1 liter of white Jotun Primer with anti rust from a Jotun paint dealer from Jalan Beserah, Kuantan. I actually wanted a red primer as I already started off with red when 1 liter was not enough for my 50 feet long fence. So I went back to the shop the next day and she was kind enough to let me exchange it for a liter of top coat by adding RM10.
She took a Jotun Gardex Multi Colour Premier Gloss off the shelf and started punching onto a keyboard by the colour dispensing machine. These days it is all about computerized colour mixing and theorectically you can get the exact shade of whatever colour you fancy but I just wanted black.