Now a day, too many window film brand in market. Basically, 2 things you can must know when choosing the film.
1. Discover the "Brand" that selling USA Original Product.
Actually only few brands in market are selling genuine USA product, the rest are not. But how do you know about it.
Tips :
a) The brand that can reveal their USA manufacturer supplier name and website.
b) Brand that recognise by their USA manufacturer too.
c) Original Packaging with brand logo (Many local brand come with blank packaging box)
d) Brand logo stamp on film. (Most USA brand come with logo)
Discover more here :
http://raytechfilms.com/customer-info/2. Make sure you pay for original "Brand" product.
Complete Step 1 before Step 2.
Many "Black-heart" dealer carrying USA brand but selling other product to customer to make more profit.
Most of customer do not aware about it.
Tips:
a) You can easily google the original product of the brand on their website.
b) Try to look for the logo on the film before installation.
c) Make sure you visit the authorized shop to get the right product.
Extra Informations :
a) Do not trust too much of the film specification like IRR and TSER. We find many many brand given fake reading.
b) Test the film before and after installation to make sure you get the right tint.
c) Do not trust on non-authorized dealer. Example : Other accessories shop can offer Raytech product. It is impossible. Finally, you getting fake Raytech product with no Raytech logo on the film.
Good Luck.