SIA (Slick It Ain’t) finish is our slip resistant textured surface, available on all thresholds up to 24" wide and on 818 aluminum and brass cover plates up to 10" wide
Our SIA technology embeds bits of hot nickel and titanium into the surface of the threshold using a high pressure thermo-electrostatic process. It was originally developed for use on aircraft carrier decks. SIA finish is very durable and will not wear off
This results in a slip resistant surface that is similar to high grit sandpaper
Aluminum and Stainless Steel SIA finish thresholds are a pewter color
Architectural Bronze SIA finish thresholds are a brass color