Nerta Special 4000 is a concentrated alkaline maintenance cleaner (pH ~10.8) designed for everyday vehicle washing on cars, vans and commercial fleets — it lifts dirt, road film and light contamination with a strong foaming effect and predictable, repeatable cleaning power for routine wash schedules. The lightly alkaline formulation strikes a balance between cutting power and ease of use, making it a reliable workhorse for valeting bays, fleet wash teams and mobile detailers who need consistency across many vehicles. This is a concentrated formula and must be diluted before use. Why operators choose Special 4000 Reliable everyday alkaline maintenance cleaner for high-volume wash teams Strong foaming effect for visible coverage and dwell Effective on dirt, road film and light contamination Concentrated for low cost-per-vehicle Compatible with sponge, brush, sprayer and wash system Suitable for cars, vans, motorhomes and commercial fleets How to use Special 4000 Pre-rinse the vehicle to clear loose dirt. Dilute Special 4000 as required for your application and equipment. Apply using sponge, brush, sprayer or wash system from the bottom up. Allow a brief contact time if needed — do not let it dry on the surface. Rinse thoroughly with clean water before drying or moving to next vehicle. Specifications Type: concentrated lightly alkaline maintenance cleaner Sizes: 5L, 20L, 200L, 1000L (see variants) Dilution: 1:20 to 1:100 — follow label per application pH: ~10.8 (alkaline) Foaming: strong Use on: cars, vans, motorhomes, commercial vehicles FAQs How does Special 4000 differ from a heavier-duty TFR like Foam Cleaner Yellow?Special 4000 is positioned as the everyday maintenance cleaner — strong enough for routine grime but designed to be used regularly. Foam Cleaner Yellow is for occasional deep-cleaning of heavily soiled fleet vehicles. Can it be used on a daily wash schedule for high-mileage taxi or rental fleets?Yes — the formula is engineered for daily fleet use. For ceramic-coated cars in the same fleet, switch to a pH-neutral wash to preserve coating life. Will it work effectively in cold British winter washing conditions?Yes, but allow slightly longer dwell time when ambient temperatures drop below 5°C and pre-rinse with warm water if available to keep cleaning power consistent. Is it safe for use on signage and vinyl wraps?For laminated standard vinyl wraps it is safe at correct dilution and short dwell. For matte and textured wraps, test a small area first or switch to a pH-neutral wash to avoid dulling. UK stock and fast dispatch from SnowFoam UK on every order.
