Bests & Worsts Reviews from Amazon

I used ammonia-free glass cleaner to clean the windows, spray the film, and stabilize it after installation. There is a noticeable difference of -8°F that shields me from using my air conditioning. 1) make sure your windows are thouroughly cleaned. 2) spray your film with ammonia-free cleaner liberally, during the film separation process. 3) spray the windows liberally 4) apply the film 5) use a solid squeeze to apply film and eliminate bubbles, from center to end. 6) cut off excessive film with rasor sharp x-acto knife. 7) spray over applied film again 8) use a soft squeezgee to finish. 9) wipe with a lint free towel.