[Daily Knowledge] How to choose the right car thermal insulation film?
When choosing the right car thermal insulation film, in addition to price and appearance, you must also consider the actual thermal insulation effect, safety, regulations and other aspects. The following is a detailed purchase guide:
1. Look at the thermal insulation performance value
There are several main indicators:
- Infrared rejection rate (IRR) : represents how much solar heat can be blocked, the higher the value, the better (usually more than 70% is best).
- Ultraviolet blocking rate (UVR) : Blocks ultraviolet rays to prevent skin sunburn and interior aging. It is recommended to choose more than 99%.
- Visible light transmittance (VLT) : affects light transmission and nighttime vision. It is recommended to choose a value of 70% or above for the front windshield, and the side windows and rear windshield should be selected according to regulations and personal needs.
2. Comparison of material types
- Dyed film : low price, but limited thermal insulation effect and easy to fade.
- Metal film : strong heat insulation, obvious reflection, may affect GPS, ETC, and mobile phone signals.
- Ceramic film/nano-ceramic film : high heat insulation, low reflection, does not affect electronic signals, durable but more expensive.
- Multi-layer optical film : novel technology, capable of both heat insulation and light transmission, and the most expensive.
3. Safety and regulations
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Taiwan regulations (reference) :
- The visible light transmittance of the front windshield film must be above 70%.
- The front seat side windows must be more than 35%.
- Violations may result in fines and may also affect vehicle inspections.
4. Color and beauty
- Dark colors provide privacy, while light colors provide security. Consider both practicality and appearance when choosing colors.
5. Brand and after-sales service
- It is recommended to choose well-known brands (such as 3M, V-KOOL, LUXE, Solar Gard, etc.).
- Pay attention to the presence of warranty, professionalism of the installation technician, authenticity certification, and anti-counterfeiting labels.
6. Budget considerations
- Prices range from several thousand to tens of thousands of yuan, and it is recommended to prioritize safety, insulation and durability.
7. Frequently Asked Questions
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Will it affect driving vision?
As long as you choose the right light transmittance, your vision will not be affected when driving during the day or at night. -
How much heat can it block?
A good thermal insulation film can block 50~90% of infrared heat energy. The actual feeling is related to the quality of the film.
8. Practical purchasing steps
- Determine your needs : Do you value sun protection or privacy? Do you value signal or price?
- Check regulations : confirm light transmittance specifications.
- Compare brands and specifications : look at thermal insulation, light transmittance, and warranty period.
- Actual experience : You can go to the store to test it with a thermal meter or a light transmittance meter.
- Professional construction : Find an experienced technician to install it to avoid bubbles and degumming.
Summarize
High heat insulation, low reflection, and compliance with regulations are the basic principles for selecting automotive thermal insulation films. It is recommended to compare multiple brands and choose products that meet your needs and have good after-sales service.
