As long as the internet has existed, it is inevitable to be influenced by videos or web ads that claim to easily solve problems, make money, etc. Sometimes, they can also look very convincing, which makes them even more dangerous and ultimately leads users to destroy expensive equipment just for fun.
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Sometimes it’s tips about microwaving your iPhone to boost its battery, other times it’s assertions that using WD-40 can fix a cracked phone screen (which, to be clear, is completely false). In this case, if something doesn’t feel right, it’s best to trust your instincts. Especially when it’s a counterintuitive solution that often requires the time and money of a professional repair. If nothing else works, don’t try any of these “miracle fixes” — in whatever form they come in — before doing thorough research. Check to see if any websites or outlets you trust can provide any specific details, and look for debunking articles or videos from reliable sources. But under no circumstances should you attempt to fix your phone screen with WD-40, as it could cause serious damage.
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Using WD-40 on a cracked screen may damage internal parts
Our phones are made of many different (and often fragile) materials, many of which can weaken or outright break down when exposed to a common lubricant dissolved in a solvent called WD-40. In fact, there are many surfaces that you shouldn’t use WD-40 on. Using WD-40 on plastic, for example, is risky because it can make several types of plastic very brittle. Unless you’re sure your phone is made of nylon, polypropylene, polyethylene, or polyester plastic (which are more resistant to the effects of WD-40), it’s best not to take the risk.
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It’s not just plastic, though. If any of that stuff seeps into the outer casing, the screen itself could be damaged by WD-40 (even more severely in this case), as could a number of internal components. Remember, WD-40 is a lubricant, so it’s designed to seep into small cracks and openings. It’s almost impossible to spray this stuff on a cracked phone screen without causing some of it to make its way inside the device. Once that happens, it’s probably time to get a new phone.
