How to glue mirror backed with fiberboard to metal

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I have an old medicine cabinet & bought a mirror (backed with fiberboard) that I would like to replace the old mirror with. What type of glue would hold it?
q how to glue mirror backed with fiberboard to metal
  11 answers
  • Rose Broadway Rose Broadway on Aug 08, 2017
    Get mirror mastic in your hardware store. It's black and holds ANYTHING!
  • Liz Toone Liz Toone on Aug 08, 2017
    E6000 is the glue I use for most projects. You will need to tape the mirror in place from the outside until the glue cures, which takes about 24 hours.
  • William William on Aug 08, 2017
    Construction adhesive in a caulk tube.
  • Bobbie Bobbie on Aug 08, 2017
    I would use a silicone glue or E6ooo
  • KW KW on Aug 08, 2017
    Check Liquid Nails Multi-purpose glue. I haven't used this, but when checking different types of glues for some of my projects, I came across this. I use E6000. E6000 adhesive is not just for making jewelry projects. In fact, you can use this product on a variety of materials, including metal,glass, clay, seashells, rocks, beads, ceramic, wood and even fabric. You can find E6000 at Walmart, Michaels, Hobby Lobby. Maybe someone else will have a better answer for you. :)
  • Rose Broadway Rose Broadway on Aug 08, 2017
    Black Mirror Mastic!
  • Jan Clark Jan Clark on Aug 08, 2017
    Possibly liquid nails.
  • B. Enne B. Enne on Aug 09, 2017
    You can use just about anything if you are leaving the fibreboard on. If not, you must use a mirror-safe adhesive (read the labels).
    Mirror mastic is good. Liquid Nails or construction adhesive (use the specific mirror adhesives), the label will tell you. I was told by a glass company not to use silicone, as well.
  • Abigail Ellis Abigail Ellis on Aug 09, 2017
    I second the suggestion for E6000. That stuff is industrial strength and works great for so many projects!
  • Babette Babette on Aug 09, 2017
    I would use liquid nails, or a silicone glue like you'd use for fish tanks or marine use.
  • Michelle Leslie Michelle Leslie on Dec 05, 2020

    Hi Eileen, I realize this is quite an old question, but I thought I'd share this brilliant site that let's you enter what you want to glue to what and it will tell you the best glue to use - https://www.thistothat.com/ I always use it to check first.