Elmer'sDisappearing Purple School Glue Sticks, Washable, Jumbo Size, 40 Grams, 3 Count

These sticks are huge, much bigger in person than pictures make them appear (there's nothing in the pictures to compare by scale). They're about 4 inches long by 1.25 inches in diameter.I bought these specifically for 3D printer bed adhesion and they are perfect for it. Not only did they resolve the slight warping I experienced, the color changing functionality is nice, it's basically purple when wet, so it goes on purple (until the layer dries) and it will turn purple again if re-wetted with water. This makes it handy to tell where you've applied it and when cleaning up, just rub a wet paper towel on it and it turns purple showing you where it needs to be removed.The bed adhesion is actually TOO good, I can tell it makes a big difference to adhesion because the prints are far more difficult to remove than they used to be. Even my preferred technique of spraying rubbing alcohol as a release agent around the perimeter of the print, no longer works with this. I suspect the glue forms such a tight bond that the alcohol can't seep under. What I find works better with this is hot water soaked towel (or paper towel), wet the perimeter so the hot water dissolves the glue at the perimeter of the print, then slide floss under and work my way through until it detaches from bed.After removing the print I find the glue has done nothing to damage the print itself. It washes off the print and the bed completely with water alone (I clean the bed with rubbing alcohol as well).

When I got my first 3D printer my biggest problem was keeping my print jobs stuck to the printer's hot bed. Nothing more frustrating than having a10 hr print job coming loose at 9 hrs and failing! I read reports that some people were using the purple Elmer's glue sticks on their printers with success, so I tried it and was amazed how well it works!I smear the glue on from the handy retractable glue stick, then I take a 1/2" paint brush, dip it in plain water, and work the glue over the bed. Once the bed heats up, the glue turns from purple to clear and is ready for the print job.After the job is printed I remove my flexible magnetic bed cover and bend it to pop off the finished print. I swish the surface again with my wet paint brush and the surface is ready for the next job. I don't usually apply the glue again until I've gone through three or four print jobs so it is extremely economical. If you are printing on a glass bed it's a little more difficult to get the prints off. You'll need your spatula/putty knife and I sometimes drip some water around the print to help loosen it. It is a small price to pay for the peace of mind of your print job not coming loose!

There are 3 sizes, Regular (6, 7, or 8 grams), Giant (22 grams), and Jumbo (40 grams).Some people complain that they receive these and they are huge. Yes they are, that is why they are labeled JUMBO.I use these for 3d printing, and they work very well, and the JUMBO size is perfect for this application. I think people buying these for their kids school supplies want the REGULAR size tubes.

I use this for 3D printing on a glass bed/build-plate. Great results with polycarbonate, 20% carbon fiber PC & PC/ABS alloy on glass. Unlike with hairspray, I've run the bed to 130 °C with no issues with adhesion or clean-up.On paper: It's very much like working with a thin film of classic glue-all but easier to apply to paper. This has very little initial tack, allowing you to slide the work for perfect positioning. Once dry it's at least as strong as most papers. Drying time varies with paper-type and humidity but my experience is that after about a minute it's pretty much permanent. Coated stocks may take a little longer depending on the permeability.

Wow! These glue sticks are incredible for 3D printer beds! They're huge so you just put a few swipes on your bed while it's heating up and it will dry by the time your bed is ready to go. Things stick so well it's unbelievable. I've never had anything come off while printing I've never had any warping or any type of bed adhesion problems other people experience. They are absolutely perfect for 3D printers. Do not spend $20+ on a stick the claims to be specifically for 3D printers just by this pack and you're good to go for a long time!

*** Update ***For you 3D printers out there... alcohol doesn't really clean this stuff off. I tried acetone and it doesn't help much either. I happen to have some CRL 1973 Glass Cleaner on hand and it tapes off this sticky glue very well.*****************I use this for 3D printing. It was recommended "The Purple One", and yes it works great! I use this directly on a glass build plate and it STICKS! This is true, since when you miss a spot, this area has a tendency to lift and curl.My heated build plate was damaged and had to get a pane of glass to continue printing (without heat). This glue turns white and (hard) waxy when heat is applied (from the hot filament) and is very difficult to get off. It is said to use alcohol to remove it, but perhaps acetone may work better.I'm sure it's great for kids to do their projects, since my 7yo walks by and says, "Did you buy those? Those are some HUGE glue sticks!", so I assume they use Chapstick-sized glue-sticks in school. The harder cured consistency is probably a good thing for kid projects.

I love this glue. Will not use any other brand or especially liquid glue o my paper projects. Love the disappearing purple. You can tell where you worked without wasting glue. I love the jumbo size! Great price!

Excelente precio para ayudar a ahorrar en el gasto de materiales escolares.