to bond a thin black poly material (weed ground cover) to a pull down patio shade to provide better sun blocking. Will it dissolve the shade material

We would expect our Hi-Strength 90 Spray Adhesive to be a better match for your application and we would not expect it to dissolve either the poly material or the shade material if it is canvas/fabric. If our team can assist further please call our team at 1.800.537.9514 M-F 8am-5pm CT. Thanks for asking!