Sorry, you misunderstood my post.

Posted by Stone on Wednesday, 23. July 2014 at 10:36 Bali Time:

In Reply to: UV400 is 100% UV protection posted by willow on Wednesday, 23. July 2014 at 09:59 Bali Time:

I was talking about testing if glasses were polarized. I wasn't referring to UV400 at all.

Thanks for the info about UV400.