Doing a favor for a friend, whereby I will be installing aluminum angle stock along the outer edges of an entryway to protect it.



My question is about the proper adhesive, since they don't want it to be screwed in. I figured that I could use a quick curing metal epoxy, something like this to facilitate a lasting bond?  If this is a good product, I was also thinking of mixing in at a few select points along the stock some faster acting CA glue for metal like this, which would achieve a quick bond (particularly for the vertical piece) and allow the epoxy time to cure.

Does this sound like a good plan, or should I be looking instead at some kind of thicker, tube dispensed adhesive that will have more immediate tack?

Any construction adhesive that typically comes in caulk gun tubes. This is the kind of application they were designed for. Some are made for vertical applications and grab and cure very quickly.

Use some z channel and install some wood trim. You could also mill some stock and make it flush with the Sheetrock (+1/8”) and but it up to j channel or L channel. Z channel comes in stainless steel which looks very nice. I used the cheaper galvanized and it can be painted. I’ll try to upload a photo of what I did. It looks very modern, and would go well with the ceiling angles. Caution it’s a fair amount of work and you should be proficient with drywall compound...   not an expert, but able to do some basic trowel work with a good knife.

There's a holiday lodge park I work on for a few months most years and they have a right angled plastic trim about 50mm on each side to protect the drywall corners from damage.
People come into the lodges with suitcases and clatter the corners and the normal drywall corner beads don't last long at all.

We usually just put them on with silicone, making sure it doesn't spread past the edge of the plastic trim, we hold it in place during curing with masking tape.

Lots of construction adhesives get a lot better hold than silicone but those lodges get stripped out and redone every few years and if the adhesive is too strong it rips big chunks of the corners when the trim is removed.
That all has to be fixed and takes longer.

Silicone (just the normal builders stuff in a caulk gun tube) holds well enough but can be removed with minimal damage when we do the refits.

Just to be clear though, we don't put any trim on horizontal reveals above doors and windows, only on the vertical corners that people can bang on as they move about.
The people who go to the holiday park are like destruction testing mechines and whatever its possible to break, they break and this minimises damage.

Oh and the construction adhesives that set hard with no flex at all? Not much use at all, just sets hard then breaks off.

Quote from: Svar on January 08, 2021, 03:29 PM

Any construction adhesive that typically comes in caulk gun tubes. This is the kind of application they were designed for. Some are made for vertical applications and grab and cure very quickly.

This. If you're going for the ugly solution of an aluminium strip. Wood trim looks much better, also needs such construction glue. Make sure the glue can handle a non-porous surface like metal.

This problem would have been prevented if the original drywaller knew what he was doing and had corner beads installed, that's what they're for.

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Oh and those normal corner beads get hammered to junk on the holiday lodges, honestly its amazing what two loads of guests every week does to the lodges. You'd think some of them were trying to wreck the place.
Couples arguing and fist marks in the doors so the door needs replacing, drywall kicked, suitcases, kids pushbikes, wheelchairs all get banged off the corners so the corners take a lot of hammer.

I have experimented with silicone as an adhesive, I find it completely worthless. Stuff just drops off after 3 days.

Nothing wrong with the construction adhesives that become very hard, most hold up forever. I've had to remove some constructions made with them, and sometimes I wanted to take out the jackhammer. Ofcourse there are many types from many different brands and not all are as good and long lasting.

I like the development of hybrid caulks lately, can be used both for sealing and glueing light materials and trim. You can paint over them and they stay flexible, and are not too difficult to remove later if you have to.

If you're going to use some adhesive or glue to fasten the angle to the wall surface which I assume is drywall from the way everyone is talking isn't your weak point the drywall paper to the gypsum core of the drywall? You can get a good bond with many adhesives to the paper, but if something catches on the edge of that angle it's not that hard to rip the angle and the paper right off the wall. And then you've got a bigger mess.

I've used this stuff before to fasten both aluminum and plastic corner bead. It will adhere to the aluminum and will be difficult/impossible to remove from the metal. You have to be quick though as it sets up in only 75 seconds.



I've also used it to attach Schluter stainless tile edging to the wall and then 75 seconds later I can go back and start using thinset to attach the tiles.

Surebonder hot melt will hold it forever.  I get a lot of use out if that thing.  Used it on a bathroom tile a year ago- still as good as new