2 car tint advise

I am going to be seeing if I could at all tint my 2004 chevy blazer 4 door. It already has "privacy glass" tinting on the all windows but the windshield. The two windows on either side of the driver are slightly less tinted than the other ones. Is it legal to get all windows any more tinted than they are. I live in Texas and I would like to keep it as cool as possible in there.

The second vehicle is 1995 Ford Escort GT 2 door. I would like to make it as cool as possible while keeping it legal...any advise?

Texas law is:

Front Side Windows Must allow more than 25% of light in.
Back Side Windows Must allow more than 25% of light in.
Rear Window Any darkness can be used.

From what you are saying, the Blazer sounds like it already has film.

For the Escort, just look for the best heat rejection you are willing to pay for.

based on those laws, heres what you can do.

the blazer has factory tinted glass. its not really a film, its dyed glass. However, it doesn't have the same properties(heat and UV rejection) as film, as far as I know, but I could be wrong. You can do like a 70/50% film over it, and you wouldn't be able to tell it from the factory glass, since it won't be a whole lot darker. Usually GM factory glass is 18-19% on a meter, so techincally its already !llegal, but since its from the factory its not regulated. Putting the very light film on will make it !llegal, but 1. it won't be noticeable and 2. it will help keep your car cooler. Then you can put any 25%+ film on the driver/passenger door.

for the escort, same thing. You can put any film you want down to 25% on it.

If your looking for strictly the most heat rejection, then look at some ceramic films. However, they can get PRICEY very fast. I would recommend looking for either a full metal or a hybrid film. neither of those cars have antennas in the back glass, so you don't have to worry about reception issues with them, while getting the maximum heat rejection

nothing you do is going to make that car cool

thats not exactly true. a truck or suv has no minimum light transmission behind the front to door glasses. so 25% on the fronts whatever you want on the rest. now thats on TRUCKS and SUVs just to make sure i am clear. cars are as stated above. 25% on front and rear doors or quarters, and no minimum light trasmission on the rear window.

http://www.txdps.state.tx.us/vi/Misc/faq/tint.htm

Scotty, not quite true.
Texas Law is NET film & glass together cannot be below 25%
Putting 25% film on the windows (except for the b/g) will make the net much less than the 25% allowed.