Taken from My-FJC forum... enjoy:

How To Use Proper Glue To Fix Your Jersey

OK... Previously I know there are many people asking me in the forum or elsewhere on how to glue back any peeled off parts from your jersey. Say for example, this common issue with the Man United 2007/2009 Home jersey:



Of course, you can try re-ironing back the white stripe (flip the jersey inside out, iron press beneath the white stripe) but it sometimes doesn't work because the original glue beneath it has totally gone.. So the solution should be straight forward right? Apply glue.. Now the issue here is.. not on how do we apply the glue but what kind of glue is suitable to be used to fix it.

Answer is... To look for Plastic and Rubber Adhesive Glue... or.. Polyurethene (PU) glue. A glue that is made using the same material which is PU itself.. Surely it won't be dangerous and harmful (since using Superglue or 'Gam Gajah' can cause the white stripe or PU material collateral damage since it is acidic)... I later found this glue at a stationary shop in Shah Alam (Seksyen 2):


So this is the glue that I will use as my experiment to fix the white stripe on the back of my 2007-2009 Man United home jersey.  So what I did was I put some of the glue onto a piece of paper (in this case, the cardboard paper from the glue's packaging):



Then, using a brush that I bought, I took some of the glue from the cardboard paper:


Then i carefully swabbed the glue using the brush beneath the white stripe.. Sorry I forgot to take photos during this procedure..but I think you get the idea.

Then I placed a paper on top of the area where I placed glue.. and then stacked a big heavy book on top of the paper (to press and bond the glue that was just applied). I then leave it for 10 minutes. Again.. I forgot to take photos.. sorry.

To be continued..