Hi, I am having a bit of time trying to find the best glue to adhere cut extruded mirror acrylic to cast acrylic.
I do a lot with mirror acrylic. For larger pieces, some Super 66 spray glue and I can glue a larger cut piece to say a piece of veneer, felt, other types of fabric, etc. But sometimes I am trying to adhere small cut pieces to cast acrylic pieces and I do not get a good enough hold. I’m guessing its something to do with the surface tension of the back of the extruded mirror and the surface tension of the cast acrylic and finding the right glue that will get a really tight grip of the two.
To bond cast to cast, I just use the Weld-On 4 with a 27 gauge needle and I love it. The capillary action really gets into the tight areas in between, its sets fast and once it cures, its on. But it does NOT work with the extruded mirror. Like, not even a little bit. The only thing it does is to basically eat away at the backing coat. There is zero adhesion.
Your average super glue also doesn’t seem to have a consistent hold. Yes, it will hold initially, but I have had pieces actually pop off (I do jewelry) and that is not good when a customer tells me that one of their pieces came off.
The Weld-On 16 seems to work OK but goddamn, its stringy and its a real pain in the ass to apply cleanly to very tiny pieces (we are talking pieces that might be only 3-4 mm wide). Doing a inlay set in piece isn’t sometimes possible because 1) getting the kerf right is unpredicatable and 2) sometimes I am going for a 3D affect where one pieces is sitting on top of the other so I need to be able to glue it on TOP, not try to set it IN
The other thing I have tried is UV resin but again, its doesn’t give me a predictable hold. Regular 2 part epoxy resin just takes too damn long to cure.
E6000 seems to do a pretty good job but it takes forever to cure and I will actually have pieces start to move and shift on me. So I need something that has a faster curing time.
I have NOT tried JB Weld. My understanding is that it is similar to the Weld On products but if anyone wants to correct me on that, feel free.
The super 66 spray works GREAT to spray my larger mirror acrylic pieces to felt and the E6000 works pretty decent if I’m doing mirror acrylic to cast and its a bit larger piece but these smaller cut pieces and letters are killing me trying to find a glue to be able to apply cleanly and not have to wait 100000000 hours for it to fully cure.