Nerta Mega Foam Cleaner is a heavy-duty alkaline pre-wash foam (pH ~12.4) engineered for maximum cleaning power on stubborn traffic film, baked-on grime and hardcore fleet contamination — a strict-professional product for HGV operators, plant equipment fleets and bus depots. Producing a thick clinging foam with extended dwell time and aggressive alkaline cutting power, Mega Foam Cleaner is the heaviest-duty pre-wash in the Nerta range — reserved for vehicles where lighter foams cannot keep up. Strictly for trained professional use only — read the safety data sheet before use. May be corrosive to metals. Why fleet operators choose Mega Foam Cleaner Maximum-strength alkaline pre-wash for hardcore fleet grime Thick clinging foam with extended dwell on vertical panels Cuts through baked-on traffic film, oil-mixed grime and salt build-up Concentrated formula for cost-effective heavy-duty cleaning Compatible with foam system and pressure washer Built for HGV trailers, plant equipment, buses and commercial fleets How to use Mega Foam Cleaner Wear chemical-resistant gloves, eye protection and protective clothing. Pre-rinse the vehicle with high-pressure water. Dilute Mega Foam Cleaner per label — stronger for the worst contamination. Apply via foam system from the bottom up, working in manageable sections. Allow brief dwell on the surface (do not let it dry). Rinse off thoroughly with high-pressure clean water before contact washing. Specifications Type: heavy-duty alkaline pre-wash foam (corrosive to metals) Sizes: 5L, 20L, 200L, 1000L (see variants) Dilution: heavy dilution — follow label per contamination level pH: ~12.4 (strongly alkaline) Foam density: thick, long-clinging Use on: HGV trailers, plant, buses, heavily soiled commercial vehicles FAQs Why does it carry a corrosive-to-metals warning if it is for vehicle washing?At pH 12.4 prolonged contact can attack uncoated aluminium and bare lightweight metals. Always rinse before drying, do not allow extended dwell, and avoid use on polished aluminium fuel tanks or unsealed metal trims. Is it safe for daily use on a coated HGV trailer or only as occasional deep clean?Reserve Mega Foam for periodic deep cleans where lighter products cannot cope. For daily HGV washing, step down to Sky WE 64 or Traffic Foam Cleaner. Will it strip wax, sealant or wash arch protectants?Yes — it is too aggressive to be used alongside protected-vehicle programmes. Plan it for clean-down sessions before re-applying any protectants. Does it need warm water to perform, or will cold water do?It will work with cold water but performance and dwell behaviour improve with warm water. For depot wash bays heating the water gives noticeably faster cuts on baked-on grime. UK stock and fast dispatch from SnowFoam UK on every order.
