Outlast KleenStart Concentrated Cleaner (quart)

(2 reviews)
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KleenStart puts the cleaning power of pure oxygen into your hands. As it dissolves, the crystals of KleenStart release the oxygen bound up inside them—giving you nature's own way of cleaning and brightening. Perfect for siding (both wood and vinyl), decks, roofs, tents, Log Homes, outdoor furniture—anything and everything that requires a good deep-down cleaning and brightening.

  • Easy mix surface prep and cleaner for logs, decks, fences and more
  • One quart makes 5-gallons and cleans about 750 square feet of surface area
  • Dissolves easily in cold water
  • Gentle to wood fibers (unlike harsh chlorine treatments)
  • Biodegradable, non-toxic
  • Contains 100% percarbonate.  No fillers added!
  • Water thin solution- Flows on easily with a pump-up garden sprayer
  • Wet surface and allow the cleaner to work for approximately 10 minutes.  Keep surface moist.  If needed, scrub surface with a stiff brush.
  • Loosens stains caused by mildew and mold for easy rinse away with water hose or pressure washer
  • Gently Brightens wood surfaces
  • Mix smaller quantities: 2/3 cup concentrate per gallon of water
  • Easy to rinse off
  • Removes mill glaze

MSDS Sheet

Technical Application Data


  • 5

    Posted by Brendan Matton on 14th Oct 2020

    Amazing how well this product works.

  • 5
    Outlast KleenStart is fabulous!

    Posted by Sandy on 23rd Aug 2015

    This is the greatest cleaner for my wood log siding! The 10 minute wait before power washing was adequate for all but a couple of heavily discolored areas which required a second application. I highly recommend this product!