Standard glue for the lab
Standard glue for the lab
(OP)
Hi there,
I would like to find a standard glue for our lab. Sometimes we have to glue things fast for prototyping.
We have loctite, but it's too thin (I glued a spring inserted in a PVC hole and it was a mess); Also two component epoxy, but we use gun and opening the tubes for just gluing something small is a waste. We even have these hot-melt adhesive but it's not strong enough.
It would be nice an "one component" glue, in a tube with a threaded cap that lasts long.
Any recommendation?
thanks
I would like to find a standard glue for our lab. Sometimes we have to glue things fast for prototyping.
We have loctite, but it's too thin (I glued a spring inserted in a PVC hole and it was a mess); Also two component epoxy, but we use gun and opening the tubes for just gluing something small is a waste. We even have these hot-melt adhesive but it's not strong enough.
It would be nice an "one component" glue, in a tube with a threaded cap that lasts long.
Any recommendation?
thanks





RE: Standard glue for the lab
Oh, and 'Loctite' is a brand, they (Henkel) have countless hundreds of products. Find a thicker one. They almost certainly make one.
RE: Standard glue for the lab
I do a lot of prototyping, and keep a variety of adhesives around, including super-glue (cyanoacrylate), epoxy (filled and unfilled, slow and fast, rubberized), gorilla glue (urethane), and 3m spray contact adhesive. Oh and some various 3m VHB tapes. Depending on the substrates, some are better for some stuff, and vice versa. For metal, I prefer the tig welder though.
RE: Standard glue for the lab
Link
RE: Standard glue for the lab
For example, you say a hot melt adhesive is not strong enough. There are hundreds of different hot-melts so one example means nothing about hot-melts in general. In addition, materials with high thermal conductivity, like metals, must be preheated so the adhesive has time to actually wet the surface of the metal before it freezes. Otherwise it will create a very weak bond or none at all.
Two-part epoxy can be mixed in a bottle cap with a toothpick, with very little waste. Cyanoacrylates (Locktite) are catalyzed by certain metals, which allows the adhesive to cure very rapidly in small gaps when bonding those metals. Plastic surfaces need to be primed with an activator.
Thick bondlines require a viscous adhesive so it will not flow out and drip. They also require a flexible adhesive so it won't crack and break. Thin bondlines usually require the opposite.
Surface preparation is always important.
The list goes on and on.
RE: Standard glue for the lab
We keep 100% silicone around for slow cures. It will adhere most anything.
After that, two parts epoxies, Metal bonding (JB Weld) and such can be bought in containers and mixed as needed. Not everything is in tubes.
It depends on the material and what you are looking for, and trial and error.
RE: Standard glue for the lab
We use it in average once every 2 weeks; that's why I say that "lasts long" since some epoxies have a shelf live of 6 months. I'll check other loctite options
I take note of the suggestions. I'll order different ones and try out. The VHB tape looks promising. I'll see the JB Weld too
thanks
RE: Standard glue for the lab
Devcon, Loctite and others all offer "5 minute" epoxy in double-barrel syringes for $5 on Amazon or your local hardware store. Squirt a bit into a plastic spoon and mix with a popsicle stick. Carefully wipe the nozzle and put the cap back on and it will last for "a long time".
One-part urethane (aka Gorilla glue) can be useful at times.
Contact cement is amazingly versatile for sheet products.
RE: Standard glue for the lab
http://aswanpro.com/peter_03/