Bilt Hamber Auto Wash
Bilt Hamber Auto-Wash is an exceptionally concentrated automotive shampoo designed to deliver effective, residue-free cleaning while helping protect exposed metal against corrosion.
Key Benefits
- Extremely Concentrated: Just 5mL is required for up to 10 litres of wash water, providing outstanding value per wash.
- Anti-Corrosion Formula: Provides long-term corrosion protection for exposed steel, stone chips, seams, and vulnerable metal areas.
- Effective Cleaning: Powerful surfactants loosen and lift particulate contamination away from paintwork for safer removal.
- No Added Wax: Cleans without depositing waxes or gloss-enhancing additives that could interfere with later detailing stages.
- Salt-Free: Formulated without salts that may become trapped in vehicle seams and contribute to corrosion.
- Residue-Free Finish: Contains no colourants, perfumes, or unnecessary thickeners and rinses cleanly from the surface.
- Preparation Safe: Ideal before polishing, waxing, sealing, or other protective treatments.
- Suitable for Older Vehicles: Particularly beneficial for vehicles with stone chips, exposed steel, or ageing paintwork.
- Environmentally Considered: Highly concentrated formula means less chemical is required for each wash.
Why Auto-Wash Is Different
Many automotive shampoos contain waxes, fragrances, colourants, salts, and thickening agents that are not required for effective cleaning. Bilt Hamber Auto-Wash takes a more functional approach, using a highly concentrated surfactant system to remove contamination while leaving minimal residue behind.
Its anti-corrosion properties also make it particularly suitable for older vehicles and paintwork with stone chips or exposed areas of mild steel. This protection helps reduce the risk posed by corrosive elements becoming trapped within seams and other vulnerable areas.
Recommended Dilution
- Standard Wash: Add 5mL of Auto-Wash to up to 10 litres of warm water.
- Suggested Dilution: Approximately 2000:1.
- Estimated Washes: Up to 100 washes from 500mL
How to Use
- Measure the Shampoo: Add approximately 5mL of Auto-Wash to an empty wash bucket.
- Generate the Lather: Fill the bucket with up to 10 litres of warm, fast-flowing water.
- Pre-Wash the Vehicle: Remove loose and heavy contamination with a suitable pre-wash before contact washing.
- Wash Safely: Clean the vehicle from the top down using a premium wash mitt or wash pad.
- Rinse Your Wash Media: Regularly clean the mitt or pad in a separate rinse bucket to remove trapped contamination.
- Rinse Thoroughly: Remove the remaining shampoo with clean water.
- Dry the Vehicle: Finish with a clean microfibre drying towel or vehicle dryer.
Perfect For
- Regular bucket washing
- Preparing paintwork before polishing or protection
- Older and classic vehicles
- Vehicles with stone chips or exposed steel
- Waxed, sealed, and protected paintwork
- Soft-top cleaning at the recommended dilution
- Professional detailing workshops
- Enthusiast vehicle maintenance
Important Information
Auto-Wash is designed primarily as a bucket shampoo rather than a pressure washer or snow foam product. For pressure washer pre-cleaning, use a dedicated product such as Bilt Hamber Auto-Foam or Touch-Less. Avoid washing hot panels or working in direct sunlight, and never allow the shampoo solution to dry on the surface.
PRO TIP: Auto-Wash is far more concentrated than most automotive shampoos, so using extra product is unnecessary. Measure approximately 5mL per 10-litre bucket to maintain its excellent rinsing performance and avoid product waste.
Dilution calculator
Pick your container and your ratio, and read off how much concentrate to pour.
A foam cannon does not spray its bottle. It draws from the bottle into the pressure washer's flow, so a 1 L bottle can put 11 L on the car and the ratio in the bottle tells you nothing about what reaches the paint. Measure your setup once and the number holds for every product that quotes a PIR.
Nothing matches that. Check the product's own page for its ratio.
Common questions
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Parts water to one part product. A 10:1 mix is ten parts water and one part product, so a 1 L bottle takes 91 ml of product and 909 ml of water. A few brands print theirs the other way round, so check the label if a number looks unusually strong.
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Water first, then the concentrate. Pouring concentrate into an empty bottle and topping it up makes it foam over the top, and you lose some of what you just measured.
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Most diluted products keep for a few weeks in a sealed, labelled bottle out of sunlight. Write the product and the ratio on the bottle. An unlabelled trigger bottle is how the wrong chemical ends up on someone's interior.
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Panel Impact Ratio is the concentrate as a percentage of everything leaving a foam cannon, the bottle water and the pressure washer water together. It matters for snow foam and pre-wash only, because a cannon draws from its bottle into the washer's flow rather than spraying the bottle.
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A syringe or a measuring jug with millilitre graduations. Capfuls vary by bottle and by how full you fill them, and at 256:1 a few millilitres out is a noticeable change in strength.