Need Sun/heat protection from Midwest Storefront windows

[brookler2]

Hello, looking at adding window tinting to some western facing commercial windows with high sun. Trying to cut thru the hype. Does anyone have any experience with excellent heat resistance, and decent day and nighttime visibility. Was recommended 3M Exterior Prestige 70, however have been reading that it is not extremely durable.  We are located in the midwest.  Looking for your expertise.  Thank you

[Tintguy1980]

Storefronts are tricky when it comes to film products; you go too light, you still get healthy amounts of heat build up inside, you go too dark, it looks like you're closed and displays are harder to see.

Prestige 70 is also available as an interior surface install and still maintains impressive performance. I wouldn't go darker than Prestige 60 so as to maintain visibility into the store; presuming you have a clear dual-pane or single pane glazing system.