I would appreciate if folks who have installed Huper Optik Sech60 on the front windscreen and C40 for the rest of the sides and rear windscreens could share your ecperience if you have switched to another tint on the same or different vehicle.

Are there other tints which outperform the heat rejection performance of the Sech60/C40. Although the VLT of the Sech60 is 59% which is below the permissible 70% set by the government, in my experience the heat rejection property is inferior to the V-Kool Elite with VLT 71% if my memory doesn't fail me.

I am guessing there is no measuring device to measure and compare the TSER or SHGC which are claimed to be the top 2 properties which affect heat rejection of tints despite all the nice numbers published on the spec or paper of manufacturers? If that is the case I presume we would have to rely on real life experiences or impressions of owners without any measuring tools involved.

I have only noticed JPJ officers measuring the VLT of vehicles with a hand-held device in the news on TV lately after our Transport Minister announced the new ruling of tinting on vehicles. However, I am not aware if there is a similar hand-held device to measure the TSER or SHGC values of a tint.

If focusing on the front windscreen, is there a tint with VLT70% or higher which outperform the Huper Optik Sech60? In my experience, the Sech60 is fairly good when new (spectacularly outstanding) in terms of rejecting heat from the sun although the VLT of 59% is on the low side. However, I find the performance to deteriorate quicker than V-Kool. Deterioration starts around 2 to 3 years and after 5 years it feels like there is no tint on the car. With V-Kool Elite the tint still performs admirably with little drop in performance after 5 years on my older car.

Seeking experiences from owners who have used Huper Optik Sech60 and C40 so that I have a benchmark on what to expect. Thoughts would be appreciated.