canvas glue

I'm not sure whether or not it would meet your particular need, but I have found Shoo Goo to be very good on canvas repairs because it is strong and remains flexible. shoo Goo can be bought at many sports stores. It is used for resoling sports shoes, you build up layers of it on the worn section of shoe soles. It dries solid but flexible and wears quite well.

If the flywire has holes in the centre space away from the actual edge, you can actually cut the screens out leaving around 2 to 3 cms of the screen all round the edge.

Then cut out new screens to suit the openings - allow some overhang to trim back later - and then using a piece of flat metal on one side as a support (and to conduct heat into the screen) and a household iron on the other side (cover the screen with a cloth so there is no direct contact between iron and the screen) you can actually fuse the two together. then trim the overhang.

It wont work if your screens are ripped at the actual seams. Worthwhile trialling on some scrap pieces first to get your technique right, and also try using something else as a back support eg ply in lieu of metal as it depends on your screens. cheers mick

The glue to use is a beltreco product called SC2000 its used in the mining,inflatable boat,& canvas industry it will stay flexible, give about 450kgs of sheer strength per square 25mmx25mm in SA Fitch the Rubber man in Hindmarsh should have it, but which ever glue you use, sew the velcro to a piece of canvas then Glue most type/brands of velcro do not take to gluing