How long does car wax last?

Most car waxes last around six months, but there are several things to consider.

A wax is a sacrificial layer and starts to become depleted the moment you put it on the car. So even if the wax does last six months, after three months there is a lot less of it on the car that when it was first applied.

Waxes are affected by weather and car use. If you are doing a lot of motorway miles, wind and dust, road salts and grit will wear away at the wax coating far faster than if you leave your car in your driveway. But even then, hot sun will evaporate the wax coating.

Furthermore, the coating can be effected by how you wash your car. Hand car washes who depend on cleaning your car quickly often use very strong soaps and degreasers, which can strip the wax right off the car.

And so when we say a wax coating typically lasts six months, that is an average based on average weather and average use.

Not all waxes are the same. Those designed to be very glossy tend to not last as long, with the extreme being 'show shine' type products which you spray on to make your car very shiny but may only last a day. Long life waxes tend to contain less shiny oils and more resilient wax of polymers and may be marketed as a sealant.

You should also consider that what a product is named may have no relationship to what it actually does, and it is important to read the label on the back to see what the product is actually promising. 

Some of the best waxes we have used last nine months, and some of the polymer ones last around a year. However, the same applies that they are sacrificial layers that wear thinner over the months. And it is important to note that they do not wear away evenly. Upper surfaces get more sun, and the nose of your car gets more dust and bugs.

What are car waxes good for?

Car waxes are good if you do regular maintenance on your car, and enjoy it. If you wash your car every week and like to wax your car every month or so, car waxes are ideal. When you maintain a car like this, and it is in good condition, waxing the car is easy. However, although products may claim to last six months to a year, professional generally agree you should reapply them every four to six weeks.

Obviously, this is not ideal for everyone, which is why for many years car care product manufacturers have been producing long life waxes for those people who only want to do it once or twice a year (and would probably rather not do that).

Your car really does need some kind of coating to protect its paint, so if you don't want to do regular coatings, polymer and ceramic coatings are a better alternative which come with additional benefits.

The alternative is wash'n'wax, which puts a thin coating of wax on your car when you wash it. This will only last a week or so, but it is assumed you will wash your car once a week. If you wash your car at an automated car wash or local jet wash, you will probably already have this or at least be given the option. This is probably the easiest way to keep your car waxed and protected.

Should you wash the car yourself by hand, you can buy wash'n'wax as a shampoo or as a spray on product you apply before you dry the car. 

Written by . Last updated 24/02/2023 13:58