testigoduran

Have you heard of this PlastIron stain?  I bought some on craigslist and they say it has really high metal content - the thing says mica, titanium, iron, and calcium and a guy said that these metals make sparkles which are mirrors.  so i put the stain on and it does have tons of little sparkles.  they guy said that the mirrors deflect the uv better then anything on the market.  and told me to imagine a sheet of metal being put over the deck to protect it.  he said the sparkles are like a sheet of metal. he said that even though many millions of sparkles are covered by the stain so you can't see them, it is almost like have one thin sheet of metal covering the deck or fence.  so some space that aren't sparkling have sparkles that are covered by stain?  ok i get it.  did anybody here know if high metal sparkles in stain should deflect uv?  does it make it better?