I had two of our cars tinted at Sun-X in Autocentro Cubao back in 1999 for P2,700 each...

I thought 3M super black is not supposed to turn PURPLE ? or does it? because just after 4 years i noticed both of the cars tint started turning purple...just like what happened with my previous tint which was the cheap US Gila type...

the reason i paid for the more expensive 3M is because I didnt want it to turn purple!!!

any comments would be appreciated...

thanks

PS- the tint has the 3M logo inside made of small dots....