
Polishing and waxing can last up to 2 months. The interval between waxing should vary depending on the vehicle's driving environment and parking location. Generally, vehicles parked in garages and mostly driven on good roads should be waxed every 3-4 months; for vehicles parked outdoors exposed to wind and rain, it's best to wax every 2-3 months. Of course, this is not a strict rule. Generally, when the body feels rough to the touch, it's time to wax again. Here is some related information about waxing: 1. Functions: The primary function of waxing is waterproofing and protection against acid rain. Due to the protective layer of wax, the amount of water droplets adhering to the car body is significantly reduced, with effectiveness ranging from 50% to 90%. Secondly, it protects against high temperatures and UV rays. As the weather gets hotter, cars exposed to sunlight for long periods can suffer from paint aging and fading. The film formed by waxing reflects some of the light, effectively preventing paint aging. Additionally, car wax can prevent static electricity and, consequently, dust. 2. Principle: When a car moves, friction with the air generates static electricity. Car wax effectively reduces the friction between the car body and air or dust. Less static electricity means less dust adhesion. Moreover, waxing also enhances the car's shine, making it look newer and more attractive.

I personally tested liquid wax in real-world conditions. For a daily commute of 20km parked in an underground garage, it lasted three weeks. However, durability drops significantly when parked outdoors—last summer under a tree, the wax layer was nearly gone within a week due to tree sap and bird droppings. Always check the wax bottle instructions—synthetic waxes typically claim 4-6 weeks, while carnauba wax prioritizes shine but lasts two weeks max. During weekly washes, I test by rubbing the hood with my knuckles—when water beads start spreading slower, it's time to rewax. Pressure washers at car washes strip wax aggressively; using the two-bucket wash method at home can extend protection by an extra week.

When I first tried waxing my car myself, I thought it would last a month, but I realized it's heavily dependent on driving habits. I commute mostly on highways, with bug splatters and rain stains coating the front bumper daily, causing the wax layer to develop swirl marks in just over ten days. Now I've learned to maintain different zones: I reapply a coating agent to the front bumper every half month, while using solid wax on less frequently scratched areas like doors, easily lasting forty days. After switching to an electric pressure washer for car washing, I noticed the wax layer wears slower—water spray is gentler on wax than towel friction.

Tried over a dozen waxes and found their durability quite unpredictable. Ceramic wax claims to last three months, but daily washing wears it out in about a month. Friends in Northeast China who garage their cars in winter report it survives the entire snow season, while my car parked outdoors in the rainy South loses protection within two weeks. Freshly polished cars hold wax the longest, whereas older cars with oxidation layers absorb wax poorly. Keeping a bottle of quick detailer spray handy for post-wash water beading maintenance is super convenient.


