{"product_id":"nerta-special-4000","title":"Nerta Special 4000","description":"\u003cp\u003e\u003cstrong\u003eNerta Special 4000\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis is a concentrated formula and must be diluted before use.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy operators choose Special 4000\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReliable everyday alkaline maintenance cleaner for high-volume wash teams\u003c\/li\u003e\n\u003cli\u003eStrong foaming effect for visible coverage and dwell\u003c\/li\u003e\n\u003cli\u003eEffective on dirt, road film and light contamination\u003c\/li\u003e\n\u003cli\u003eConcentrated for low cost-per-vehicle\u003c\/li\u003e\n\u003cli\u003eCompatible with sponge, brush, sprayer and wash system\u003c\/li\u003e\n\u003cli\u003eSuitable for cars, vans, motorhomes and commercial fleets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to use Special 4000\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePre-rinse the vehicle to clear loose dirt.\u003c\/li\u003e\n\u003cli\u003eDilute Special 4000 as required for your application and equipment.\u003c\/li\u003e\n\u003cli\u003eApply using sponge, brush, sprayer or wash system from the bottom up.\u003c\/li\u003e\n\u003cli\u003eAllow a brief contact time if needed — do not let it dry on the surface.\u003c\/li\u003e\n\u003cli\u003eRinse thoroughly with clean water before drying or moving to next vehicle.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: concentrated lightly alkaline maintenance cleaner\u003c\/li\u003e\n\u003cli\u003eSizes: 5L, 20L, 200L, 1000L (see variants)\u003c\/li\u003e\n\u003cli\u003eDilution: 1:20 to 1:100 — follow label per application\u003c\/li\u003e\n\u003cli\u003epH: ~10.8 (alkaline)\u003c\/li\u003e\n\u003cli\u003eFoaming: strong\u003c\/li\u003e\n\u003cli\u003eUse on: cars, vans, motorhomes, commercial vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow does Special 4000 differ from a heavier-duty TFR like Foam Cleaner Yellow?\u003c\/strong\u003e\u003cbr\u003eSpecial 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used on a daily wash schedule for high-mileage taxi or rental fleets?\u003c\/strong\u003e\u003cbr\u003eYes — 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it work effectively in cold British winter washing conditions?\u003c\/strong\u003e\u003cbr\u003eYes, 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe for use on signage and vinyl wraps?\u003c\/strong\u003e\u003cbr\u003eFor 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.\u003c\/p\u003e\n\u003cp\u003eUK stock and fast dispatch from SnowFoam UK on every order.\u003c\/p\u003e","brand":"Nerta","offers":[{"title":"5L","offer_id":52813449855323,"sku":"NER-SP4000-5L","price":15.99,"currency_code":"GBP","in_stock":true},{"title":"20L","offer_id":52813449888091,"sku":"NER-SP4000-20L","price":60.99,"currency_code":"GBP","in_stock":false},{"title":"200L","offer_id":52813449920859,"sku":"NER-SP4000-200L","price":542.99,"currency_code":"GBP","in_stock":false},{"title":"1000L","offer_id":52813449953627,"sku":"NER-SP4000-1000L","price":2578.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1006\/8820\/0027\/files\/SPECIAL-4000-packshots_20L_WEB_b29ca484-6200-498a-b77a-53b9d90a59ec.jpg?v=1776248436","url":"https:\/\/snowfoam.uk\/products\/nerta-special-4000","provider":"SnowFoam UK","version":"1.0","type":"link"}