As I am a keen artist, I paint, scribble and doodle a lot and I bought 10, 16"x20" gallery sized canvasses from a dealer I found on eBay - a year later and they are all used up and I was unable to get any more as cheaply as that lot, so I checked the works and eBay again but, at the size I want, I would have to pay at least £5 each for them and I am far too tight to horf up £50!
So I researched a bit on the web and soon had enough information to know how to recycle/reuse my used canvasses and reduce the amount of space my finished masterpieces were using up at the same time... All I needed was a stapler (the big woodworking kind) some old sheets, a can of emulsion paint, PVA adhesive and some chalks..
The method: cut the picture from the canvas frame, remove the old staples, sand and, where necessary, use wood filler in any cracks, holes or knots that are found, then reassemble the four pieces and I glued them together for rigidity and strength.
When the glue/filler had dried, I then cut a piece of old sheet about 4-6 inches bigger than the fame and stretched it over my canvas frame. Then I stapled the material to it starting at the middle of each side, working my way around then adding a staple each side of the middle one until I got to the corners, pulling the material tight each time before stapling. The finished result was pleasing to me and it was tight as a drum.
I mixed up 70% emulsion, 20% PVA and 10% water (approx) and I grated up a large chalk which I added to the mix, I then painted it onto the back, sides and front of the canvas and put aside to dry. After 12 hours I sanded the front and painted it again. This process simultaneously sizes and primes the canvas, after another 12 hours and a light sanding, it is ready to be painted on!
This saved my a load of money and I will reuse the frames many times, I have put a posting on freecycle asking for old material and got an offer within 12 hours... woohoo!
Let's see how well it holds the acrylics I intend to use on it...thanks for reading.