polypropylene or acrylic

[vdhillon2]

Hi,
I recently purchased some materials from an orthotics company. There are 4 large sheets of plastic. Two are translucent white and are labeled polypropylene. THe other two are clear with a protective film on it. Although I'm not sure what they are. It is labeled Vivak 928.

I'm trying to make a sump, from what i read, the polypropylene won't work as it does not take glue very well.
Any idea how to find out if the other material is acrylic? Any test I can do?

thanks

 

[on the spot]

This should get you going in the right direction.

 

[on the spot]

The red word above is a link. you will need to click that link.

(help provided courtesy the Maurice Clarett foundation for advanced decision making, link clicking division)

 

[guezei]

You should be able to heat weld polypropylene.

 

[guezei]

I wouldn't recommend fabricating with anything other then domestic cell cast acrylic for a water retaining structure.

 

[vdhillon2]

So it that basically telling me that Vivak is its own type of plastic? I assume both types of plastic I have are from there, but the clear one which looks like acrylic is actually not...?

 

[Dave Thebrewguy]

That link does mention that the material can be solvent bonded with Weld-on 3, 4 or 7 and can be bonded to acrylic with Weld-on 55. I'd be tempted to experiment a little.

 

[Gorgok]

Vivak is a brand name for PETG plastic. Its not as clear as polycarbonate, which is not as clear as acrylic... Its also softer than acrylic.