Anti-Corrosive Car Wash Shampoo Concentrate 500ml, Bilt-Hamber

Quick Facts – Bilt-Hamber Auto-Wash Shampoo

• Brand: Bilt-Hamber
• Model: BIL000022
• Type: Concentrated car wash shampoo with anti-corrosive properties
• Volume: 500 ml
• Dilution: 5 ml per 10 litres of water
• Yield: Up to 100 washes per bottle
• Composition: Free from wax, dyes, fragrance, and artificial thickeners
• Award: "Best Car Shampoo" – Auto Express

Bilt-Hamber Auto-Wash is an extremely concentrated car wash shampoo formulated for safe and effective pre-wash cleaning of vehicles. The product is free from wax and gloss enhancers, making it suitable as a preparatory wash ahead of detailing steps such as clay bar, Polish, or Sealant.

Auto-Wash stands out with documented anti-corrosive properties – an uncommon feature in a car wash shampoo. The product helps protect exposed steel in seam joints, panel folds, and stone chips against rust formation. It has been awarded "Best Car Shampoo" by the British automotive publication Auto Express.

Thanks to its high concentration, just 5 ml per 10-litre bucket is required, yielding up to 100 washes from a single 500 ml bottle. See more Bilt-Hamber products for car care in our range.

What is Auto-Wash and why choose it?

Bilt-Hamber Auto-Wash is a technical shampoo free from additives such as wax, fragrance, or artificial thickeners. This means the product does not mask or interfere with existing hydrophobic Coating or car wax – the paint surface is left clean and ready for the next treatment step.

The anti-corrosive formula makes Auto-Wash a considered choice for owners of older vehicles, classic cars, and vehicles with visible stone chips, whilst also protecting modern vehicles in vulnerable areas such as panel folds and door seams where water and aggressive cleaning agents can otherwise accelerate rust formation.

Where is this product suitable?

• Professional detailing studios and bodywork preparation workshops requiring a neutral shampoo prior to paint treatment
• Car care businesses with high throughput – the extreme concentration keeps the cost per wash low
• Owners of classic and vintage vehicles with exposed or vulnerable steel
• Enthusiasts who wash regularly and wish to preserve the effect of Ceramic Coating or car wax
• Vehicles with visible stone chips or paint damage where rust is at risk of taking hold

Technical Specifications

Suitable for: Professional detailers, bodywork preparation workshops, and car care businesses requiring a neutral shampoo without additives. Also suitable for detailing enthusiasts who regularly treat paintwork with Coating, Sealant, or car wax and wish to avoid these being adversely affected by the shampoo's composition.

Industries: Detailing, car care, vehicle preparation, classic car clubs, bodywork workshops.

Frequently Asked Questions (FAQ)

Does Bilt-Hamber Auto-Wash work as a pre-wash before clay bar and Polish?

No – Bilt-Hamber Auto-Wash is a contact wash shampoo and does not replace a dedicated pre-wash product. However, Auto-Wash is an excellent shampoo to use directly before clay bar or Polish, as the product is entirely free from wax and gloss enhancers. This means the paint surface is left clean without any residue that could interfere with subsequent detailing steps.

What volume and yield does Bilt-Hamber Auto-Wash offer?

Bilt-Hamber Auto-Wash is supplied in a 500 ml bottle. The recommended dosage is 5 ml per 10-litre bucket, yielding up to 100 complete car washes from a single bottle. This makes Auto-Wash one of the most cost-effective premium shampoos on the market calculated per wash. We offer the product for both individual detailers and workshops with high throughput.

What sets Bilt-Hamber Auto-Wash apart from other car wash shampoos?

What primarily sets Bilt-Hamber Auto-Wash apart from most competitors is the combination of anti-corrosive properties and a completely clean formula free from wax, fragrance, dyes, and artificial thickeners. Many shampoos on the market contain wax or gloss enhancers that can interfere with the performance of existing Ceramic Coating or car wax. Auto-Wash is also extremely concentrated – 5 ml is sufficient for a full bucket – and has been awarded "Best Car Shampoo" by Auto Express. See also more car shampoos and wash products in our range.