Make your own canvas surface
(Durban South Africa)
You will need 1 sheet of untempered masonite cut to standard art board sizes. Wood glue white kind. Canvas. Pure acrylic paint white.100 grit sandpaper
Tools: Hobby or Stanley knife.3" paint brush.
Method: Apply glue to precut board smooth surface. Take care there is no dust or grit on the board or you will end up with the pea under the mattress syndrome.
Apply the canvas to the board having cut it to size with about half an inch / 12mm all round to spare.Apply hand pressure to rub out excess glue to the edges of the board.I then put more boards on top to apply pressure on level surface putting canvas sides face to face.
When glue has dried, carefully pull boards apart sand lightly, apply two coats pure acrylic paint, allow to dry and sand lightly before use. I also have used pink as a background base on the board.
Trim the edges of waste canvas cutting from the canvas facing side so as not to press the canvas from the board.