During my last camping trip my tent's rain fly finally started letting water penetrate through. I've been looking at different products that claim to 'waterproof' the fabric because it would seem that the top part of the tent has de-laminated.

The fly is polyester and the canopy is nylon. The tent itself is a North Face Talus 23 tent.

Does anyone have any experience/suggestions for any products on the market?

Thanks.