Using plexiglass in hi-temp situations

I'm looking to make a see-through container for an enclosed steaming system for some work I am doing.

Obviously, my first thought was something like 1/4" plexiglass (easy to acquire and work with).

I see the "melting/molding" point of it is typically considered to be around 150C/300F. The steam I'll be putting into the box will only be about 115*C. Plausible? Any other suggestions?

It is fairly important to be able to see the product I am working with, so the material has to be clear... costs are fairly irrelevant (I am with the government after all)

The box is also quite large, over 6' in length and 8-12" wide.

Ultrason is what they make sterilizable baby bottles out of. Datasheet says 428F

Not sure if you can buy it in sheet or tube though, looks like it's for injection molding.

Glass would probably be one of the higher temperature clear materials.

93EXCivic wrote: Glass would probably be one of the higher temperature clear materials.

Pyrex too.

Borosilicate glass. This is the high temp stuff they use in Pyrex and other lab glassware.

What about Makrolon?

Autolex wrote: What about Makrolon?

You win the internets. Makrolon it is. And as a bonus, I don't even have to build it now, I get to sub it out to some other company. Double bonus!

Makrolon = Polycarbonate, AKA Lexan..

Zomby Woof wrote: Makrolon = Polycarbonate, AKA Lexan..

Which is fine, because if you look up its specs, it tends to be rated as much more heat resistant than other lexans or plexiglas'. It is rated for 135c before it starts to bend/warp. Most other versions are only rated to 100c which is too low.

Plexiglass is acrylic, and useless. Lexan, Makrolon, etc. are trade names.

Zomby Woof wrote: Plexiglass is acrylic, and useless. Lexan, Makrolon, etc. are trade names.

Hey Mike, I understand that. What matters is that Makrolon says it has a higher heat resistance for the type of polycarbonate (because you want to be so densely specific) that I want to use.

Plexiglass is not "useless" in my situation. But polycarbonate is probably more useful. Something something quit being an shiny happy person something something. Semantics are tiring.

That was just an FYI. I didn't mean it that way. Most people know dick about plastics.

You think you're swearing now, try working with acrylic

The next guy that asks me for a piece of UHMW get's punched in the face, though.