WD-40 is a household staple, known for its versatility in lubricating, cleaning, and protecting various surfaces. However, its seemingly magical properties don't extend to everything. Using WD-40 on certain items can lead to damage, malfunction, or even create hazardous situations. This guide will detail what you should absolutely avoid spraying with WD-40.
Electronics: A Big No-No
This is perhaps the most crucial point: Never use WD-40 on electronics. While it might seem like a quick fix for a sticky button or a squeaky component, WD-40 is a solvent and can damage delicate internal circuitry. It can leave behind a residue that interferes with electrical conductivity, leading to malfunctions or even short circuits. This applies to everything from smartphones and computers to power tools and appliances. Instead, use specifically designed electronics cleaners.
Screens and Displays: Avoid at All Costs
Similar to electronics, screens and displays, including those on televisions, monitors, and smartphones, are highly susceptible to damage from WD-40. The residue can leave streaks, smudges, and potentially damage the screen's protective coating. Use a microfiber cloth and a screen-specific cleaner for optimal results.
Brake Parts: Safety First!
Never, ever apply WD-40 to brake components. WD-40 can contaminate brake pads and rotors, significantly reducing braking effectiveness and posing a serious safety risk. This is not a minor inconvenience; it could be fatal. Always use brake cleaner specifically designed for this purpose.
Clothing and Fabrics: Stain Nightmare
While WD-40 might seem like a quick solution for removing stubborn stains, it's likely to leave behind its own persistent stain that's even harder to remove. The oily residue can also damage the fabric fibers, leading to discoloration and weakening of the material. Stick to stain removers specifically designed for the type of fabric involved.
Plastics: Potential for Damage
Depending on the type of plastic, WD-40 can cause cracking, discoloration, or softening of the material. Always test it on an inconspicuous area first before applying it to a visible surface. It's generally safer to use a plastic-safe cleaner.
Rubber Parts: Degradation and Weakening
Rubber is sensitive to the solvents in WD-40, which can cause it to degrade, become brittle, and lose its elasticity. This is particularly true for automotive parts like seals and gaskets. Opt for rubber-specific protectants instead.
Paint and Finished Surfaces: Unexpected Reactions
WD-40 can react unpredictably with certain paints and finishes, causing discoloration, streaking, or even damage to the surface. Test it in an inconspicuous area first to avoid ruining a valuable item. For cleaning paint, use a suitable paint cleaner.
Food Preparation Surfaces: Health Hazard
Avoid using WD-40 near any area where food is prepared or stored. The solvents and chemicals it contains are not intended for ingestion and could pose a health risk if accidentally ingested or if residue contaminates food.
When to Consider Alternatives
In many cases where you might instinctively reach for WD-40, a more specialized product is likely a better choice. This is especially true when dealing with delicate equipment or safety-critical applications. Consider using specific lubricants, cleaners, or protectants tailored to the material and task at hand.
This list is not exhaustive, but it highlights the most common mistakes. Always refer to the product label and exercise caution when using WD-40. Remember, safety and proper maintenance are paramount.
