2025
The Science of a Streak-Free Car Wash: Tips From the Experts

Achieving a streak-free car wash relies on several principles some of which will be used by different car wash companies depending on the location and water quality. In today’s blog article we are going to take a brief dive into what makes a car wash streak-free.
Water
The first issue is water quality. Harder water is more likely to leave water spots from dissolved minerals. Some car washes use reverse osmosis or even deionized water to remove the dissolved solids. Burnaby, however, and the Lower Mainland, has pretty soft water, so that is a step not typically needed.
Heat
Warm or hot water helps to remove dirt and grime more easily. The more dirt that is removed, the cleaner and smoother the final finish will be. Using hot water in the final rinse also helps the water to evaporate quickly which, in turn, contributes to a smooth streak-free finish.
Air
Typically, air is used to blow any remaining water off the vehicle. This is another contributor to a smooth finish.
Other
There are a variety of other products and techniques that can help achieve a streak-free finish. A foamy soap helps the water to penetrate dirt. Drying rinses create a barrier, so water falls off easily, similar to the rinses that are used in dishwashers.
A high-quality car wash like ours in Burnaby will have available several of the concepts mentioned above to help the client get the best streak-free car wash around. Type of soap, type of rinses, water temperature, drying mechanisms are just some of the parts needed for a streak-free finish.
Shine Auto Wash has been serving the Lower Mainland since 2009. With three convenient locations, Shine Auto Wash offers advanced automotive cleaning and protection technology and a service that is quick and efficient.
If you have any questions about this article or would like to talk to us about car washes, we encourage you to call us in Vancouver at (604) 806-0800.