I think your talking about Lexan. It's similar to plexiglass, but is bit less expensive.

Its a great product, as you noted a lot of hockey rinks use it. Tough to bust, no shards when it does.

There are UV resistant films out there. 3M makes them, but there are less expensive ones out there. If you contact your local window company or even some of the ones that provide curtains, etc. they could give you some pricing. I've never checked, but not sure if The Home Depot or Lowes or something like that would carry them. One thing you want to find out is if the window film will stick to Lexan. It is different than glass, and it may or may not adhere.

If it IS lexan, the newer stuff is UV stable.
However, not many rinks use lexan that I know of as it doesn't have the shatter characteristics needed.
Usually, arenas use laminated glass or plexiglass as both these products shatter into dull pieces instead of sharp shards.

Lexan is a brand name for polycarbonate. That's pretty tough stuff used in safety glasses, windshields, aircraft canopies. Multiple laminated layers are the original bullet resistant glass.
Paxan is probably another brand name for the same stuff.
https://en.wikipedia.org/wiki/Lexan
Plexiglass is acrylic, more brittle and not as strong as polycarbonate.
https://en.wikipedia.org/wiki/Poly%28methyl_methacrylate%29

Back in the day there was an experiment done with the security film and laminated (automobile) glass.

The experiment involved putting the film on the glass inside, outside and both sides. They found that using the thinnest film on the inside would effectively stop a nine millimetre round fired from a Browning High Power at 5m. Putting the film on the outside had no appreciable effect and when put on both sides it did not notably improve over the film put on the inside.

So in short, the security film really works. Some versions have been recorded as having stopped multiple rounds of 7.62B at 5m. I was once tasked with defeating this stuff and using hardware store supplies found it very difficult and time consuming. The "fastest" way through was with a hydracut, and trust me, still not fast to set up and definitely not available at the local shops!

-S.

Glass on the outside takes the impact on Bullet proof glass (shatter), the Lexan film controls the shatter. A Lexan is very shatter proof against low velocity area impact (hockey puck) but not bullets (liquefies at area of impact).