
For plastic car dashboards, prolonged exposure to sunlight may lead to cracking. Here are the specific details about car sunshade mats: 1. Advantages: Since many car dashboards are made of hard plastic, they easily reflect light onto the windshield during summer, affecting the driver's visibility. Additionally, high temperatures can cause volatilization of hard plastic materials, making sunshade mats necessary. Car sunshade mats provide protection; frequent exposure to intense sunlight can raise the interior temperature excessively, increasing the risk of car malfunctions. 2. Disadvantages: Sunshade mats can absorb sunlight but may directly hinder heat dissipation. They require regular cleaning as dust tends to accumulate over time when left in place.

My car has been used for almost ten years, and the dashboard has been severely damaged by the sun. The plastic parts have all faded and turned white, with several small cracks, and they feel particularly rough to the touch. If parked outdoors for half a day in summer, the entire surface becomes scorching hot, and the leather parts have started to peel. The most troublesome part is the plastic around the air conditioning vents, which warped from the sun last year, making the clips unable to fasten tightly. Now I've learned my lesson—whenever I park for more than half an hour, I always use a sunshade, and it has made a significant difference. If you want to extend the lifespan of your dashboard, protecting it from intense sunlight is absolutely essential.

I've seen too many cases of sun damage during car repairs. Plastics age and become brittle faster, cracking during disassembly; leather-wrapped dashboards dry out and peel after prolonged exposure; the most vulnerable are LCD screens and circuit boards, as high temperatures can cause display abnormalities or even burnouts. Just last week, I handled a car whose owner parked it outdoors long-term, and the air conditioning control panel failed directly. I strongly recommend using a windshield sunshade—it's low-cost but highly effective. Opt for one with an aluminum foil coating to reflect most of the heat. If there are already signs of cracking, silicone protectants can help slow further deterioration.

Driving in Hainan, the sunlight is extremely harsh. My first car's center console was ruined in just three years: all the plastic parts turned white, and the leather cracked like a tortoise shell. Now I've developed a habit of always using a sunshade whenever I park. Practical tests show it can lower the temperature by about 20 degrees, and it only feels warm to the touch. I also discovered a little trick: the sunshade should completely cover the dashboard, not just the windshield. Additionally, it's recommended to choose a silver-white sunshade, as it absorbs less heat than a black one. Regularly applying silicone oil cream to plastic parts is also a good practice. However, a word of caution: don't use a sun umbrella to cover the center console, as it might fly off during sudden braking and obstruct your view.

During material testing, it was found that the molecular chains of the plastic in the center console break and degrade under UV exposure. For every 10-degree increase in temperature, the aging rate doubles. Common ABS plastics become brittle after just six months of sun exposure, while leather cracks after two weeks in a 70-degree environment. Experiments have proven that applying heat-insulating film is the most effective solution, filtering out 90% of UV rays. However, it's important to note that the film should be applied to the exterior side of the glass, as applying it inside can trap heat. Additionally, avoid using alcohol-based sprays during cleaning, as they can react with aged plastics. It is recommended to clean with a neutral detergent monthly and then apply a specialized protective agent to seal the surface pores.

My car is only two years old, but I pay special attention to protecting the dashboard. Every time I wash the car, I carefully wipe off dust to prevent corrosion from dust under high temperatures. A must-have is the custom-fit sunshade, which fits much better than universal ones. In summer, I apply silicone-based interior care cream weekly to nourish both plastic and leather surfaces. I always prefer underground parking, and if not available, I look for shaded spots under trees. My colleague's car developed cracks from sun exposure last month, costing over 800 yuan in repairs. Now he follows my lead with the sunshade and says the steering wheel isn't as scorching anymore.


