How To Get Windows Tinted. Leaving the one inch overhang at the bottom of the glass, carefully cut away any extra film at the front or rear of the glass. Because of this, window tint is measured by visible light transmission otherwise known as VLT percentages.
Rear window tint level: This is the amount of tint (VLT%) you're allowed on your rear window. However, we can assure you that taking your car to a pro will be your best bet. Hold your heat source about two inches away from the glass and apply the heat in circular motions.
It depends on your window size, shape and accessibility, and also where you live.
On the other hand, you could take the vehicle to a professional to have the windows tinted.
You can replace ammonia with soap and warm water mixture if you want. Mine is on its way - will be receiving in a couple more weeks. Window tinting limits the amount of sunlight (and harmful UV rays) that can shine through your car's windows.