[Zamboknee]

The wife and I are going to frame out our big bathroom mirror with the trim I've attached here. She wants to put each piece up 1 at a time by glueing up with epoxy but I think we'll get a cleaner looking frame if we assemble the frame first and then glue up to mirror.
Frame is going on TOP of mirror so we'll be glueing it right onto the mirror.
My question is: what method would you recommend for assembling the frame before putting up on the mirror?

 

[ChuckF.]

That looks like flat window molding, it has no rabbet to go over the mirror. If it is bigger than the mirror it will leave a space between the molding and the wall, if it is exactly the same size as the mirror, you will see the mirror along the outside edge of the molding.

To assemble that I would use wood glue and a right-angle clamp or two. It looks like there is a relief on the back that might be deep enough for a piece of cardboard or thin veneer as reinforcement. Once it's complete glue it to the mirror with a few dabs of silicone sealant.

 

[ront02769]

Sas noted, gluing it on face of mirror will give yu crap look on the edges. But if you want to do it anyway, you need to paint the BACK of the trim BLACK. Ron

 

[txmike]

they make a push in tab used on picture frames. i would use these along with glue. you may be able to find them at a hardware store or a picture framing store.

 

[mako1]

I've done this many times and always cut a rabbet on the inside edge of the casing to accept the mirror so the molding sits flush with the wall and mirror.Make it a little wider than you think you'll need so you have a little wiggle room.

 

[ront02769]

Thought this thread died a month ago. Anyway, since reopened, it will look like crap unless the inside part that the mirror sits in/on is PAINTED BLACK. Ron

 

[ddawg16]

I've done it a couple of times.....some advice.....

Remove the mirror and make it a part of the picture frame. As noted above, you want to notch the inside so the glass fits in it.

Make that rabbit groove about 1/4". Then before putting in the mirror, paint the inside a light color and let it dry completely.

Once dry, run a bead of clear silicone around that rabbit and then set the mirror in.

That will hold it quite well. The frame and mirror become 'one'.

Or, use white silicone.

If you don't paint or use the white silicone, you end up with a dark seam due to the thickness of the glass reflecting the backside of the rabbit. Using a light color such as white or gray makes it pretty much disappear.

 

[mako1]

This works great for smaller /lighter mirrors .The last one I did was 6' long and glued to the wall with mastic so it's not always an option.

 

[carpdad]

If I am pre-assembling thin molding, I'd use 2p-10 glue kit. Check the mitered pieces against a square before gluing. Anything else needs a jig to keep the pieces in place and square or a pinner.