Dr. Wack "P21S" P21S "POWER GEL" Wheel Cleaner 750ml

Dr. Wack P21S "POWER GEL" – the original for uncompromisingly clean rims

Why is Dr. Wack P21S POWER GEL wheel cleaner so effective? Because its gel formula dissolves even stubborn brake dust, is acid-free, gentle on materials, and delivers a clean, shiny result in just 3–5 minutes.

The Dr. Wack P21S "POWER GEL" Wheel Cleaner has been the original wheel cleaner since 1976 – a multiple test winner and still a true benchmark in car care. Its highly effective gel formula reliably dissolves even extremely burnt-in brake dust, oil, and rubber residues – and it's completely acid-free. Whether aluminum, steel, or chrome-plated rims: The POWER GEL cleans safely, quickly, and gently, with no risk to paint, rim beds, or TPMS sensors.

• Maximum cleaning power without acid: Removes even caked-on brake dust and winter grime without attacking the rim surface or fading the material.

• Gel formula for maximum adhesion: The POWER GEL adheres longer, doesn't run off, and works automatically – for thorough deep cleaning with low consumption.

• Fast, safe application: Simply spray on, let it work for 3–5 minutes, rinse off – done. No scrubbing, no risk to delicate coatings or valves.

Material-friendly active formula and technology

The strength of P21S POWER GEL lies in its chemically balanced, completely acid-free composition. Dr. Wack uses a highly active surfactant system with a special complexing agent based on sodium mercaptoacetate. This molecule specifically reacts with metallic brake dust (mainly iron oxides) and dissolves it without attacking sensitive metals or paints. The color change – from transparent to violet – indicates the active cleaning phase. Thanks to the gel structure, the cleaner also adheres to vertical surfaces, which significantly increases contact time and cleaning effect. The high viscosity ensures that brake dust in deep pores is also dissolved before it is completely removed during rinsing. The result: uniformly clean rims with original shine – without scrubbing or micro-scratches.

Application and practical tips for perfect results

Applying the P21S POWER GEL Wheel Cleaner is simple, but as with professional detailing, it should be done carefully. Spray the product evenly onto the dry, cooled rim. Due to the gel adhesion, a thin film immediately forms, which also adheres to hard-to-reach areas – between spokes, in the rim bed, or behind the screws. After about 3–5 minutes of exposure time, the cleaner turns dark red to violet: This is the sign that brake dust and metal particles are actively being dissolved. Then simply rinse with a strong stream of water or a high-pressure cleaner. For a perfect finish on heavily neglected rims, you can gently assist with a soft wheel brush. Important: do not let it dry and do not use in direct sunlight. Since the cleaner is absolutely acid-free, the risk of corrosion or dull spots is zero – even on polished aluminum rims or delicate multi-piece rims. It is also TPMS-compatible and biodegradable, making it safe for daily use. After cleaning, a rim sealant is recommended to prevent new dirt from adhering.

Results, durability and areas of application

In practice, the P21S POWER GEL impresses with an extremely clean, even finish without residues. Brake dust, oil and tar particles are removed without residue, the rim surface feels smooth and clean – the perfect basis for subsequent care or sealing. Particularly sporty vehicles or cars with open brake systems benefit from the strong, yet gentle cleaning. The gel-like formulation makes the product very economical, as less cleaner runs off the rim. Due to its pH-neutral action, the POWER GEL does not attack paints, plastic parts or valves and can be used regularly. It is also ideal for vintage cars, chrome-plated rims or multi-piece alloy wheels – even with frequent use, no stains or structural changes occur. The difference is immediately visible and tangible: smooth, shiny rims without residues – and all in a few minutes.

Frequently asked questions about Dr. Wack P21S POWER GEL Wheel Cleaner

How long should P21S POWER GEL be left to work? 3 to 5 minutes are sufficient. Then simply rinse with a strong jet of water. If necessary, briefly help out with a soft brush.

Can I use the cleaner on warm rims? No. The rims should be cool and dry so that the cleaner does not dry out and works optimally.

Is P21S POWER GEL also suitable for matte or painted rims? Yes, as it is absolutely acid-free. It does not attack paints, powder coatings or matte surfaces.

How often can I use the cleaner? Regularly – even with every wash. The pH-neutral formula is gentle enough for continuous use.

Why does the cleaner turn purple? This is the reaction with iron-containing brake dust. The color change indicates that the dirt is actively being dissolved.

Last updated: 27.10.2025 — Author: Daniel (Detailing1)