How to make a canvas for oil painting?

i need untempered masonite; i found hardboards at home depot but none of them are untempered. i am using it for the corner bases of a canvas and i am using oil paint. does anyone know where to buy';untempered'; kind?





and also, i was told to make support bars and the bars are suppose to be 1x2 pine(the same material i used for the the frame of the canvas) . the canvas is not suppose to come in contact with the support bars, so how would i make this possible if 1x2 pine is the same size?How to make a canvas for oil painting?
Are you going to use the Masonite for a support and stretch canvas over it? If you are you can raise the surface by nailing or gluing mitered 1/2'; or 3/4'; quarter round at the edges and stretching the canvas over that. The thin edge will keep the canvas away from the Masonite surface. But why not use, or simply build conventional stretcher bars, or just paint directly on the surface of the gessoed Masonite?





And who told you to go with Untempered?


Nowadays you can use the TEMPERED product, which is the one with a smooth surface on one or both sides. It is darker in color than the untempered. Years ago it was tempered with an oil of some sort that potentially could leach into the painting. Now it is tempered with heat and pressure.The gesso or primer creates a barrier for oils and acids moving in either direction. Recent research seems to indicate it's not a 100% iimpermeable barrier, but good enough unless the painter is doing something really extreme.


Either way, just to be safe, you can wash the board down with alcohol to get rid of any surface oils or impurities before you start and feel better.





Good Luck!


Have Fun!How to make a canvas for oil painting?
Here's an excellent tutorial:


http://emptyeasel.com/2006/12/29/how-to-鈥?/a>