How can you define "gluing" as "bonding with a GLUEY substance"?
You're using the term (glue) to define itself.It doesn't work that way.
More accurately,it could be "bonding with a sticky substance or
'adhesive'.",and contact adhesives are sticky.
They also are "gluey",they flow,too. How do you think the contact adhesive
gets onto the object to be bonded? It either gets painted on as a liquid,or
sprayed from a can;again-liquid in aerosol form.
It doesn't have to be "gap-filling",either.It just has to adhere between
Yes it can be glued with difficulty. A PHD student I lodged with at Uni had
to make chemical preparation apparatus out of polythene due to the strange
chemicals he was working with (?). Problem with polythene is it is "oily"
and most glues won't stick.
He assembled is apparatus either by friction welding, rotate one piece in
fast and force onto other piece
or hot air gun and plastic rod
or finally etching surface with chromic acid (nasty stuff) to produce a
"crust" which can then be glued.
A quick digging around on google reveals a chromic/sulphuric acid mix is
used to etch plastic prior to plating with metals and other plastic coating.
I had a moment that I thought my chemistry memory had failed me............
3M 5200 MIGHT work. Worth a try. Available from any store that carrys
marine/boating supplies. If that doesn't do it, I think you will need to find
someone who does plastic fabrication and welding.
My friend, who is no longer with us, owned a shop in the Long Beach
(CA) Marina that installed polyethylene water and gas tanks in boats
and RVs. He would buy the PE tanks in all different sizes and the PE
spouts also in different sizes. Because of different applications the
tanks were manufactured with no holes and the spouts were of all
How to "glue" the spout to the tank ??? Well, he would cut a hole in
the tank of the appropriate size in the proper location. He would then
take the proper spout which had a flat flange on it and place it in
his 3/8" drill (with an adapter that he had made). He would then
place the flat surface of the spout flange against the tank directly
over the previously drilled hole. He would then turn on the drill. The
friction of the spout flange against the tank would heat up and melt
both the tank and spout ... thus "welding" the spout to the tank.
This took quite a bit of skill but he was real good at it.
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