Low-Cost Self-Cleaning Concrete and Stone Surfaces K. Cyrus Robinson armONx 1 June 2009

armONx Proprietary -- Use Pursuant to Company Instructions2 Introduction Concrete (or stone) is often used aesthetically, but is: Concrete (or stone) is often used aesthetically, but is: – Porous Liquids penetrate and persist Liquids penetrate and persist – Mold, fungi Likely to stain deeply Likely to stain deeply – Difficult to clean Dirty Surfaces are Ugly Dirty Surfaces are Ugly

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions3 Introduction Can we keep it clean? Concrete is everywhere –and easy to stain…

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions4 Introduction Stains (oils, foods, etc.) may spoil clean pavers’ appearance Stains (oils, foods, etc.) may spoil clean pavers’ appearance

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions5 Introduction Roof tiles often become infested with mold Roof tiles often become infested with mold

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions6 Introduction Some walls have had permanent ink dashed on them Some walls have had permanent ink dashed on them

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions7 Introduction Good appearance requires care to maintain Good appearance requires care to maintain – Pressure washing poured concrete Does not remove deep stains Does not remove deep stains – Replacing pavers/stone Takes some skill Takes some skill Must be done each time these are stained Must be done each time these are stained Must keep extra pavers/stone, perhaps for years Must keep extra pavers/stone, perhaps for years – Pressure washing roof tiles (mold, fungi) Ladders; risk - cost Ladders; risk - cost

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions8 Introduction 1. Firstly, could we modify the porous surface of these materials to make it less permeable? 2. Secondly, could it “take care of itself,” help keep itself clean to minimize maintenance? – Could the surface spontaneously remove new soils, or “self-clean?”

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions9 Introduction: Use a Sealer? Many sealers available: Many sealers available: MARKETING TABLE HERE

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions10 Introduction: Use a Sealer? Sealer characteristics: Sealer characteristics: MARKETING TABLE HERE

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions11 Introduction: Use a sealer? Note, no existing sealers are “Self- Cleaning” Note, no existing sealers are “Self- Cleaning” Is this dual “Self-Cleaning”/Sealing action obtainable? Is this dual “Self-Cleaning”/Sealing action obtainable? –At a reasonable cost? –With a single, durable application?

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions12 Solution Our treatment makes these materials persistently self-cleaning, with the natural action of the elements Our treatment makes these materials persistently self-cleaning, with the natural action of the elements –Low cost (cents/sqft) –Durable –Not a film or membrane - cannot bubble, crack or delaminate –No significant change in appearance, nor slippery when wet

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions13 Data: Test Method 1. Treat concrete pavers, poured concrete and stone of variable quality & color 2. Drip same volume of used engine oil onto treated and untreated samples According to EPA, oil is: slow to degrade, insoluble, hazardous, contains heavy metalsAccording to EPA, oil is: slow to degrade, insoluble, hazardous, contains heavy metalsEPA 3. Document stain removal effectiveness and cost

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions14 Data 6” x 6” Paver divided into four quadrants 6” x 6” Paver divided into four quadrants One coat Two coats No protection Oil does not penetrate; it spreads out Oil drops Clear in two weeks’ time time0 time1time2time3

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions15 Data More Pavers (pictures taken before oil faded completely) More Pavers (pictures taken before oil faded completely) Depending on the material, two coats may work faster than one Oil spreads No protection One coatTwo coats One coatTwo coats

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions16 Data Stone - Travertine Stone - Travertine Treated 3 areas Four Oil spots Clear, less than 10 days Stained

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions17 Data Sand between pavers or stone Sand between pavers or stone –Stabilized (cemented) Rain does not dislodge Rain does not dislodge –Weed germination impeded Less weed killers … Less weed killers …

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions18 Data Poured Concrete Poured Concrete UntreatedTreated (one coat) Two weeks elapsed

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions19 Data Fading of Permanent Marker ink Fading of Permanent Marker ink –“Accelerated weathering,” tough, opaque pigments erode & flake off faster Untreated; little change Treated; about 10% faded Twenty Day Exposure Day 0 Day 20

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions20 Data Quick drying surface Quick drying surface –Limits mold, fungi Treated Untreated Dry Still Wet 10 minutes Wet Surface

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions21 Data Roof Tile application Roof Tile application –Dual action discourages fungal growth: Moisture quickly dries Moisture quickly dries Surface actively breaks down organics Surface actively breaks down organics

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions22 Data Lower Quality materials perform like Higher Quality Lower Quality materials perform like Higher Quality –Subsurface durably modified at the molecular level

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions23 Conclusion This Patent Pending Treatment: Is easy to use Is easy to use Does not change the appearance of the surface or make it slippery when wet Does not change the appearance of the surface or make it slippery when wet Makes the surface durably impermeable Makes the surface durably impermeable –impedes stain or moisture penetration, as well as efflorescence –permits vapor transmission

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions24 Conclusion This Patent Pending Treatment: Is not a film or membrane Is not a film or membrane –cannot delaminate, crack or wear off independently of the surface Gently works on driveways and parking lots (engine oil), inks (graffiti), etc. Gently works on driveways and parking lots (engine oil), inks (graffiti), etc. Is effective on roof tiles, discouraging fungal growth Is effective on roof tiles, discouraging fungal growth

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions25 Conclusion This Patent Pending Treatment: Stabilizes (cements) the sand between pavers or stone and inhibits weeds from germinating Stabilizes (cements) the sand between pavers or stone and inhibits weeds from germinating Contains zero VOC’s Contains zero VOC’s Uses safer ingredients Uses safer ingredients

1 June 2009 armONx Proprietary -- Use Pursuant to Company Instructions26 Conclusion Questions: Questions: –Contact: K Cyrus Robinson K Cyrus Robinson