Car wash Part 2: Choosing the right car wash detergent and some practical tips

Choosing the right car wash shampoo

There are many types of car shampoos on the market. If you wash your car at home, make sure the wash water is absorbed into the ground safely, and only use biodegradable products that do not contain hydrocarbon-based solvents.

For extremely dirty cars, especially in winter, hydrocarbon-based solvents may be needed — In that case, always wash the car in a designated wash bay equipped with an oil separator, such as those available at service stations.

Most car shampoos sold in Finland are biodegradable and suitable for outdoor use. Products like KORREK Originals Autopesu and KORREK Pro High Foam Shampoo are excellent choices — they are solvent-free and ideal for occasional home washing where local regulations  allow it.

Best Wash Tools for Hand Washing

Use a microfiber or lambswool wash mitt for hand washing. These materials are more gentle on paint than traditional sponges or brushes, as they trap dirt deep within the fibers and thus reduce the risk of scratches.

Microfiber mitts can be machine washed and reused, keeping them fresh and ready for the next wash. Avoid traditional sponges, as they tend to hold grit between the surface and the paint, increasing the risk of scratching.

Washing techniques

Start washing from the top down — roof, windows, doors, and finally the lower panels. This approach keeps the dirtiest areas for last and prevents spreading grime to cleaner surfaces.

The Two-Bucket Method

The two-bucket technique is simple but highly effective:

• One bucket contains soapy wash water.
• The other bucket holds clean rinse water.

Rinse the wash mitt in the clean water before dipping it back into the shampoo. Wash one panel at a time, rinsing the mitt between panels. Replace the water as needed — especially if the car is very dirty.

This method helps prevent dirt particles from re-entering the wash water and scratching the paint.

Wheel Cleaning

Always wash the wheels last. Choose acid-free wheel cleaners, as some wheel materials are sensitive. Apply the cleaner, let it work for a few minutes, and use a soft, narrow brush suitable for wheels.

Products like KORREK Wheel Cleaner and KORREK Pro Irox effectively dissolve brake dust and iron particles, reducing the need for mechanical scrubbing.

The Result: A Glossy, Scratch-Free Finish

By using the right washing techniques and tools, your car’s paint will stay glossy and well-protected for longer. After washing, always finish with a high-quality wax or coating to maintain durability and enhance the shine.

Proper washing technique combined with the right KORREK products ensures a shiny, smooth, and scratch-free finish every time.