Could someone please use references to find whether Super glue, Epoxy, etc. Count as polycarbonate glues? I’ve tried but failed =/
Bump.
Bumping is Frowned upon around here, and just typically ends up bugging people, just FYI
Polycarbonate glue will be any glue marketed as such, a quick google search gives http://www.eplastics.com/Plastic/Lexan_Polycarbonate_Glue
If it isn’t clearly marketed as polycarbonate glue I think you would have a hard time convincing your inspector.
Remember to take care when using these adhesives, the fumes are usually pretty powerful.
Well, what I mean also is, could we use Loctite to secure say… a magnet to a piece of aluminum? Or what in the rule book could we use for this.
D’oh. I just thought of a magnet on the other side xD But yea what adhesives could we use even still that would work for these surfaces?
Seeing as you’re asking about polycarbonate glue, I’m assuming that you’re asking about the minibot.
So, what can be used to hold magnets to aluminum on the Minibot?
–Polycarbonate glue (anything sold as such, if I’m reading the trend of GDC answers on, “what constitutes an X” questions correctly)
–PVC cement (doubt that would really work, but it might be worth a shot)
–Loctite is not a glue; it’s a threadlocker. You could try it… but don’t expect success.
–Mechanical fasteners
–Electrical tape is specifically allowed by <R92-W>–no use specified.
–Hook and loop fastener might work, but then you’ve got two sides of hook and loop between the magnet and the plate.
I’d try the electrical tape. Nothing says it has to be used as an electrical insulator… (until the GDC notices this post, that is).
Loctite makes many amazing glues and epoxies. Loctite epoxy held our robot together last year.
Yep, but when the rule says “Loctite or similar threadlocking product”, you’re kind of limited to the threadlock versions. Might work, but might not.
Threadlocker is a thin, special purpose adhesive. An adhesive is a glue. IndySam is right. Let it go.
-dave
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We want to use epoxy to glue a magnet to the aluminum on the minibot. Is epoxy an allowed polycarbonate glue?
If you want an official answer, Ask the GDC.
In light of their recent rulings, I would imagine their answer would be “A polycarbonate glue is anything that is marketed as a polycarbonate glue”. But this is only an educated guess…
Close … the GDC clarifies:
"Any glue that is marketed as specifically for bonding polycarbonate is allowed per R92-G. "
http://forums.usfirst.org/showthread.php?t=16617&highlight=polycarbonate+glue
By the definition,
on amazon would work … there are several glues in the paint section at the local Home Depot that say Acrylic, and I am going to go back and check, but I suspect that somewhere in the description of the Acrylic glues they also say also polycarbonate.
Acrylic glues at the hardware store are glues that are based on an acrylic polymer emulsion not a glue made for gluing acrylic.
So…
“WELD-ON 16 is especially formulated to bond acrylic plastic. It can also be used for bonding styrene,
butyrate, PVC and polycarbonate, as well as other plastics and porous surfaces.”
Does that description of WELD-ON 16 qualify it as a FIRST sanctioned “polycarbonate glue”?
If so, does Gorilla Super Glue qualify as a PVC cement <R92-R> because it specifically markets that it bonds PVC sheet?
“Bonds wood, metal, stone, ceramics, PVC sheet, brick, paper, rubber and some plastics”
Or do we have to replace Gorilla Super Glue with WELD-ON 16 and hope it works?
If a bottle of epoxy says that it can be used for “plastics,” will it pass inspection as a polycarbonate glue?
CD really isn’t the place to ask…
Is there a place to ask right now? Q/A is closed, and this doesn’t seem like type of question to tweet the refs about.
If you go to the Loctite website, you can browse through their adhesives, and you will find what you are looking for in their descriptions of what materials they will bond. Search for the data sheet. Loctite makes many more products than “thread locker” materials. The rules do not state “marketed as” as was done with the limit switch. One formulation that I researched is called “ultra gel control”. this may be suitable for your needs. 
I hear ya, but it seems a little late…