Nooooo! I learned the hard way never to combine glues. Especially NOT silicone and E-6000 b/c they conflict. Glues are chemical. An ingredient in E6000 causes the silicone not to set up. I actually tried this thinking as you did. But there are hairline gaps as surfaces are seldom perfectly level. Some of the E-6000 seeped out and contacted the silicone turning the silicone to mush. So I actually wrote a blog post about this as well. https://makeitagarden.com/weird-glue-failures-and-solutions-for-garden-art/. Bottom line, it’s not a good idea to combine glues.

Thanks for the question. I have not personally used Goop, but know some people do. The MOST IMPORTANT quality is if the glue will hold up to the summer HEAT in your particular area. Always research or read the info on the package to check the heat rating. Marine Goop and E-6000 have about the same heat rating. 180 degrees. That may seem like a lot, but it really isn’t. Glass (and ceramics) absorb and retain heat. After many days in the hot sun, the glue could/possibly fail. But that all depends on where you live. I live in an area with mild summer temperatures where it doesn’t get that hot. E-6000 (which I also use) and probably Goop (which I haven’t used) will do just fine. Most of the time, I use 100% silicone which has a heat rating of 400 degrees. It’s made for exterior…primarily to seal around the outside of a window. So it is water proof, freeze proof and sun proof. Many baking gadgets like pot holders, trivets and cupcake pans are made of silicone. If you are having success with the product you’re using, then keep using it. Whatever works for you! (I may even give it a try for comparison!) ~ Kristen

I’m not sure I understand the question. Are you asking how to glue glass together for something like garden art that will be outside? Or are you asking what GLUE to USE for outside? I have not used the Gorilla brand myself, but I do know that they make a 90% silicone product and I highly recommend silicone for garden art because it is made for outdoors. Make sure to use CLEAR and make sure it’s the kind for Exterior/doors & windows. Silicone is water proof, freeze proof and sun proof. However, if you are gluing two pieces of GLASS together, you may wish to use E-6000 rather than silicone as it is completely CLEAR and dries clear so the glue doesn’t show. The only downside to E-6000 is if you live in a hot climate, the glue can become soft when exposed to prolonged high temperatures (glass absorbs heat) and your craft piece may not hold together. But E-6000 and silicone are the two most commonly used adhesives by crafters who make glass garden art.

I’ve heard from others who have had problems with E-6000 too. It’s a completely different product than Silicone. Here’s a short article I wrote about Silicone that might be helpful: https://makeitagarden.com/why-silicone-is-the-best-glue-for-garden-art/
Silicone is thicker. All glue can slide around, especially if not completely level, so find something that can be used as a weight. Otherwise you have to hold it with a light amount of pressure for a few minutes. Glue in the tube…whether silicone or E-6000 should last several months if the cap is on tightly. Use a cloth rag…an old t-shirt cut into squares, to wipe off the tip of the tube after use. That way, the cap screws on nice and air-tight. Sometimes, glue can dry over the opening, but the rest of the tube is perfectly fine. Try using a tooth-pick and insert it down into the hole. E-6000 is rubbery and elastic, so you may have to insert the toothpick several times until it opens up enough to squeeze out product. Sometimes, you can just peel off the dried stuff over the tip and you’re good to go! But try the Silicone and see if you like it or not. Make sure to get the one that is for doors and windows and is “clear”. Silicone is not as clear as E-6000. If you are making a totem, use your finger to wipe the access, smoothing the bead out and it will be less visible. And will seal between the two objects. Let me know how it goes, OK? ~Kristen

Hi Lori! I always recommend bringing garden art inside over the winter…garage or shed. E-6000 is a true glue with certain ingredients made to bond two things together. Where-as Silicone is made to SEAL windows on the exterior. So it’s water proof and sun-proof and remains pliable. Therefore, it has ingredients to perform that function. It’s this same reason that makes it so nice for glass and ceramic garden art. Both products have their ups and downs. If you’re worried about E-6000 slipping during the curing process, you might find something you can use as a weight to hold it securely in place. Jar with pebbles in it, can of soup, etc. Thanks for dropping a line! ~ Kristen

Yes, I get water inside also with E 6000. I stack crystal (real and fake from thrift store). Beside that, if you’re not working an absolutely level surface everything slides around before the glue is dry. I come back a few minute later and everything is lopsided. Then you can’t get the glue off even with peeling, scraping, acetone, etc, so all your items are now useless. Glue dries out in tube, so is not useable next time. Yes, if you do succeed, it will hold up in all day sunlight at 100 degrees, but it doesn’t like snow and freezing temperatures. Have not tried the silicone yet but hope I have better results when I so.
I love the ceramic towers. Lots of pretty ceramic stuff at my local thrift store too and the have a half-price day!

I live at an altitude of almost 4000 feet. I stated glueing crystal (real and fake) together to make these lovely things. I the summer they’re in the sun all day, sometimes 100 degrees. No problem. Unfortunately, E6000 doesn’t like snow or freezing temperatures! Comes apart and just leaves the glue on the pieces. Unfortunately the glue dopant come off even with scraping so the pieces are noe useless. Also if you don’t have items on a perfectly level surface they slide apart before the glue is dry.