So i'm in the planning process of making a leather shotgun case which will have Tandy Kodiak leather then closed cell polyethelene padding then an upholstery fabric lining. My everyday adhesive is tanners bond contact cement, but on such a large area, it seems unrealistic to use contact cement, between the leather and foam and then between the foam and the lining. So i'm wondring what some alternatives may be? I was thinking spray adhesive, but have never used it before and not sure what to look for as far as super strength "last a lifetime" spray adhesive goes. All 3 layers will of course be stitched together round the edge of the case, including a zip.
Any suggestions would be greatly appreciated!