Knowing the pH of chemicals used to clean the interior and exterior of cars is essential for choosing the right product based on the type of dirt and the surface being cleaned, ensuring effectiveness and protection of the materials.
Importance of pH in car cleaning products
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pH measures the acidity or alkalinity of a product on a scale of 0 to 14: acidic (0-6), neutral (7) and alkaline (8-14).
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Each pH level affects dirt and vehicle surfaces differently, so a poorly selected product can damage paint, rubber, plastics, or delicate finishes.
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Products with extreme pH (very acidic or very alkaline) are more aggressive and can cause damage if not used with caution.
Types of dirt and recommended pH
| pH type | Type of dirt that cleans best | Typical use in cars | Precautions and benefits |
|---|---|---|---|
| Acid (pH 0-6) | Mineral deposits, water stains, rust, metal contaminants | Cleaning watermarks, mineral deposits on paint and rims | Be very careful on delicate surfaces (paint, marble), rinse well and avoid drying on the surface. Dilute properly. |
| Neutral (pH ~7) | Light dirt, dust, light grease, common stains | Regular cleaning of paint, plastics, rubber, interiors, floor mats, fabrics | Safe for delicate surfaces, maintains waxes and coatings, ideal for frequent use |
| Alkaline (pH 8-14) | Grease, organic dirt, mud, insects, tough residues | Degreasing engines, greasy and muddy areas, exterior pre-washing | Very effective for grease and heavy dirt, can be corrosive if misused, dilute and avoid drying on delicate surfaces |
Practical applications in car cleaning
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Abroad:
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To remove grease, mud and organic dirt from the body and engine, alkaline products (high pH) are used .
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To remove hard water stains or mineral deposits from paint and tires, acidic products (low pH) are used.
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For regular washing and maintenance, pH neutral products are preferred to protect the paint and waxes .
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Inside:
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- Products with neutral pH are ideal for cleaning plastics, fabrics, rubbers and delicate surfaces without damaging them .
- Mild alkaline products can be used for more difficult organic soiling, always with caution .
Summary
Knowing the pH of chemicals allows you to select the correct cleaner for each type of dirt and car surface, achieving effective cleaning without damaging materials. Acidic products remove mineral deposits, alkaline products degrease and eliminate organic dirt, and neutral products are safe for regular cleaning and delicate surfaces .
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