Is plastic available in tubes? Or something similar

[ÉlPon]

Is there something plastic-like that you can spray out like glue and then it hardens? Like the same amount and solution as a cartridge used in a caulking gun. Then you should be able to screw screws into it once it hardens.

Or if there is something better than a plastic that hardens.

I have an old greenhouse where I have replaced plastic panels. Among other things, the sloping roof panels were held in place by metal rails that were screwed into hollow plastic joints. These have now crumbled, so I would need to fill in with some material so that I have something to screw into again.

 

[ÉlPon]

Plastic may not sound ideal for screwing into, but that's how it used to work when it was also hollow:

 

[Mardigan]

Plastic might not sound completely optimal for screwing into, but that's how it worked before when it was also hollow:

[image]

I have filled holes with PL400 which I then screwed into, but it wouldn't hold too much weight, so it's hard to say if it would work for you.

 

[ÉlPon]

I don't think it's that much weight but I'm not sure. It stays pretty much in place without screwing at all but sometimes slides down a bit and I think it will get worse with the snow.

I've thought about PL400 but then forgot about it... I might have thought that it doesn't harden so that screws stay in place, but that might be wrong.

 

[jonaserik]

Set a stop at the bottom so they don't slide, let your imagination decide what kind of stoåå.

 

[Zachtionman]

Tec7 is a kind of universal product that both adheres and holds on to most things. Available at most hardware stores or Clas Ohlson, etc.

https://www.tec7.se/Default.aspx?ID=2683&GroupID=GROUP101&ProductID=PROD501

 

[ÉlPon]

Set a stop at the bottom so they don't slide, let the imagination work for what to stop.

That's true, one could probably screw a small metal plate to the vertical posts that are in aluminum, and the plate would stick up a few centimeters to hold the horizontal track in place instead. It will be more durable than screwing into the plastic. I'll think about that!
Then some plastic to tidy up the holes is still needed for the appearance.

 

[ÉlPon]

Tec7 is a kind of universal product that both adheres and holds on most materials. Available at most hardware stores or Clas Ohlson etc.

[link]

Any difference in properties between it and PL400 or are they equivalent?

 

[jonaserik]

PL 400 bites well but becomes rock-hard, maybe not good for plastic that moves, I would think a silicone for 100 C is better.

 

[Svante Svenson]

Well, is Epoxi plastic? This one is very nice, keep in mind that the nozzle is used up when it cures in it. However, extra nozzles are available. https://www.seasea.se/plast-glasfiber/polyester-epoxi/epoxi/epoxilim-six10

 

[Appendix]

https://www.bauhaus.se/varumarken/sugru

 

[Appendix]

Sugru is magical. However, relatively unknown in Sweden.

 

[hapazard]

Biltema's multibond adheres to most surfaces and cures into a strong and durable material. Repaired the mount for a bicycle light with it several years ago, and it's still holding despite being out in sun and rain.