How to Solve Corrosion on Automotive Plastics?

[DelBrooklyn]

When applying, it's best to apply horizontally or vertically, similar to waxing, as this will result in a better appearance once dried. During the application process, many small bubbles may appear. It's essential to wipe these bubbles clean; otherwise, they will leave small pits once dried. After the black plastic parts regain their black color, they should be waxed. Even the plastic parts that haven't turned black should also be waxed.

[DelIris]

I've encountered the issue of car plastic corrosion several times, usually caused by parking under direct sunlight or using strong cleaning agents. Simple solution: First, wash the corroded area with warm water and neutral soap, gently wipe off stains with a soft cloth, then apply a dedicated plastic restorer like Back to Black spray. Let it sit for a few minutes after spraying to allow absorption, and perform weekly maintenance to prevent new corrosion. If severe corrosion leads to cracking or brittleness, stop DIY attempts and consult a professional shop to check if part replacement or protective paint coating is needed. For daily care, I recommend parking in shaded areas and avoiding chemical spills to prolong plastic lifespan.