Surfactant
A surfactant is a soap added to a cleaning mix that lowers water's surface tension, so the solution spreads, clings to walls and dwells long enough to work.
Also called
- soap
- wetting agent
- soft wash soap
In soft washing, a surfactant keeps the sodium hypochlorite mix from running straight off vertical surfaces, helps it get under dirt and growth, and makes the coverage visible. Only small amounts are needed.
Not every soap works with sodium hypochlorite; some break down in it. Use a surfactant made to be mixed with it, follow its label for the amount, and record what was used on each job.
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Related
- TradeSoft washing and roof cleaningSoft wash and roof cleaning software: a sodium hypochlorite mix log, wind and cold flags, plant-protection checklists and reminders when a roof is due again.Read
- GlossarySoft washingSoft washing is cleaning with a low-pressure spray of solution, usually diluted sodium hypochlorite and a surfactant, that kills algae, mold and mildew.Read
- GlossarySoft wash mix ratio (sodium hypochlorite)The soft wash mix ratio (SH mix ratio) is how much sodium hypochlorite is diluted with water for a soft wash, worked out from the product's strength and the strength you want at the surface.Read
- GlossaryDownstreamingDownstreaming is drawing cleaning solution into a pressure washer's water after the pump, through an injector, so it comes out of the wand at low pressure.Read