It depends. We recommend using the “fabric trick” of applying glue to one side and letting it begin to dry to clear and tacky before pressing fabric together which most likely will work fine for fabrics thick enough not to allow the glue to seep through. (Pressing fabric together with wet glue often pushes the glue through the fabric and results in less successful bonding.).
Unfortunately, if the fabric is thin enough to allow wet glue to seep through, then it will probably will remain visible and be tacky. Try the “fabric trick” (described above) when “bad” side will be protected, covered, or otherwise hidden.
