Polytronix Privacy Glass

What is the difference between privacy glass and tinted windows?

Specialty glazing products are highly sought after in the architectural and automobile industries.  With several to choose from there are two types by application that are the most common – switchable tinted glass and switchable privacy glass.

Switchable tinted windows can be found on the market as SPD or Electrochromic (EC) glass.  Switchable privacy glass is predominantly PDLC technology.  Both switchable tint and privacy glasses are electrically powered to turn the glass from one optical state to another between dark or opaque to clear, or vise versa.

What is the difference between switchable privacy glass and switchable tinted glass?

There are a few differences between SPD and electrochromic glass.  While being helpful at blocking heat and UV rays, they are less private than switchable privacy glass.  These devices are also dark in color, whereas switchable privacy glass is mostly of translucent white color.   All these devices have a clear state and a dark/opaque state.  While switchable privacy glass has limited range of dimming (typically from 75-80% to 50-60%) compared with SPD and electrochromic glass wider range (typically 50-75% to 2-5%), the switchable privacy has the strongest power to obscure an image (privacy).  While each glass type has pros and cons the benefit to switchable privacy glass is in the privacy itself.  Of all the products on the market you can feel safe in knowing your valuables are secured behind a switchable privacy glass.  An added feature of switchable privacy glass is that the glass it is laminated, so it can also be tinted.

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