 Can I use The O2 Algae and Mold Removal System™ on all types of Wood?
No, although The O2 Algae and Mold Removal System™ will work on all types of exterior wood, we do not recommend using The O2 System™ on redwood or cedar. Reason is, the powerful Ultra Violet Reactive Particles (UVRPs) used in The O2 System™ are so effective, that they may continue to lighten redwood and cedar to a "white driftwood" colored state. While The O2 System™ may also continue to lighten other types of wood as it works to prevent the return of algae, mold and mildew; it is normally just redwood and cedar that can experience drastic lightening. (So, if you want your redwood or cedar to be free of algae, mold and mildew, and you don't mind the "white driftwood" color, you can use The O2 System™)
 Can I use a power washer when using The O2 Algae and Mold Removal System™ to clean my concrete?
Yes, concrete is one of the hardest materials to clean, so for best results you can use a pressure washer to thoroughly rinse Step 1: OxiOut™ Algae and Mold Remover from the surface. We recommend settings on your pressure washer between 500psi -1500psi depending on the condition of the concrete. (Always follow the pressure washer manufacturer's directions and wear appropriate safety equipment) Keep in mind that in most cases, you will be able to clean the concrete just using OxiOut™ mixed with warm water, and light scrubbing with a stiff brush. Old concrete, or concrete surfaces that have old, heavy deposits of algae, mold or mildew, may need additional cleaning or the use of a pressure washer as we have noted above.
 Can The O2 Algae and Mold Removal System™ be used inside?
No, The O2 Algae and Mold Removal System™ is for outdoor use only. The O2 System™ uses Ultra Violet Reactive Particles (UVRPs) which need to be exposed to the direct, or indirect, rays of the sun in order to be activated. Once activated by the sun's UV rays, the UVRP's generate a chemical reaction on the treated surface which prevents the return of algae, mold and mildew. The proper use of The O2 System™ results in long term protection from the re-growth of algae, mold and mildew on your exterior surfaces.
 Is OxiOut™ Algae and Mold Remover the only cleaner I can use prior to applying OxiShield™ Algae and Mold Barrier?
Yes, OxiOut™ Algae and Mold Remover is pH balanced to work in connection with OxiShield™ Algae and Mold Barrier. The chemistry used in Step 1, OxiOut™ Algae and Mold Remover, is specifically designed to prepare the surface you're cleaning to accept the Ultra Violet Reactive Particles (UVRPs) found in OxiShield™, Step 2 of The System. These two products, used as a system, form the basis of The O2 System, and must be used together or you will void the 2 year guarantee. So, always use the products in The System together - Step 1: OxiOut, followed by Step 2: OxiShield.
 Can I apply OxiShield™ Algae and Mold Barrier over my stained or painted deck?
Yes, OxiShield™ Algae and Mold Barrier can be applied over any non-organic stain on the market today. OxiShield™ Algae and Mold Barrier is not a sealer, but rather a surface treatment that will continue to fight the re-growth of algae, mold and mildew. (If you're applying OxiShield™ over a newly painted or stained deck, it's important you follow the stain or paint manufacturers directions and allow the newly stained or painted surface to thoroughly dry prior to applying OxiShield™.
 Will OxiShield™ Algae and Mold Barrier cause discoloration?
No, since OxiShield™ Algae and Mold barrier is a clear surface treatment, it will not cause discoloration of the surface if applied properly. (Some white stains may appear if you have over-applied OxiShield™ or allowed "pooling" of the product during application. These white stains can normally be removed by promptly wiping the area with a lint free rag that has been dampened with OxiShield™)
 Does OxiShield™ Algae and Mold Barrier work like a sealer?
No, OxiShield™ Algae and Mold Barrier is a breathable surface treatment, which protects the surface from the re-growth of algae, mold and mildew. OxiShield will not trap in moisture, thereby allowing the treated surface to "breath".
 Is The O2 Algae and Mold Removal System™ safe around children, pets, and plants?
Yes, The O2 Algae and Mold Removal System™ contains no bleach or harsh chemicals and is considered biodegradable, when used as directed it is generally safe around children, pets and plants. However, we always recommend the use of eye and skin protection whenever using any chemicals around the house. ALWAYS KEEP ALL CHEMICAL PRODUCTS OUT OF REACH OF CHILDREN.
 Can I use The O2 Algae and Mold System™ on vinyl or exterior trim?
No, The O2 System™ can only be used on porous or semi-porous surfaces, surfaces such as wood; concrete; brick; brick pavers; asphalt shingles; and stucco. Unfortunately, vinyl siding is a non-porous, smooth material, so OxiShield™ Algae and Mold Barrier will not adhere properly to vinyl siding. You can however, use Step 1, OxiOut™ Algae and Mold Remover to clean the vinyl siding or exterior trim, just follow the label directions. You will find that OxiOut™ Algae and Mold Remover is an excellent cleaner for these surfaces.
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 Should I apply OxiShield™ Algae and Mold Barrier with pressure washer?
No, OxiShield™ Algae and Mold Barrier is a ready to use formula that can be applied with a simple garden pump sprayer, or it can be brushed or rolled on to the surface you are treating. (OxiShield™ should always be thoroughly shaken before use, and agitated at least ever 60 minutes in order to keep the UVRPs in suspension) Experience has shown that a clean, garden pump sprayer will provide the easiest most trouble free application of OxiShield™. A good application will result in a uniformly damp surface, with no "pooling" or puddles of OxiShield™ visible immediately after the area is treated. (To avoid rapid flash drying, do not apply OxiShield™ to hot surfaces, like roofs, concrete, wood decks, etc. It's best to apply OxiShield™ on overcast days, or early in the morning before your work surface gets to hot)
 Do you recommend a brand name garden sprayer for application?
Yes, one brand we would recommend is a Chapin which you can find at Amazon. You should also use a fan tip spray nozzle, as this will give you the best "first pass" coverage and help you avoid surface "pooling" of OxiShield™ during application. OxiShield™ should always be thoroughly shaken before use, and agitated at least ever 60 minutes, in order to keep the UVRPs in suspension. Remember OxiShield™ is ready to use, NEVER DULITE OR MIX WITH WATER, OR ANY OTHER PRODUCTS.
 If OxiOut™ Algae and Mold Remover dries on the surface prior to rinsing can I apply more product?
Yes, mist the effected area with water and additional OxiOut™ Algae and Mold Remover solution; let it work on the surface as directed then rinse thoroughly before the surface dries. Never allow OxiOut to dry on your surface, as a white, powdery residue will result. (In order to avoid flash drying, do not apply to hot surfaces like roof, concrete, wood decks, etc. Try to apply OxiOut™ in the morning or late evening, so as to avoid hot surfaces that can dry quickly resulting in the white, powdery residue we refer to)
 Can I apply a new color stain, or paint over the clear OxiShield™ Algae and Mold Barrier once it has cured?
No, the UVRPs in OxiShield™ Algae and Mold Barrier need to be exposed to the direct, or indirect, ultra violet rays of the sun. So if you paint over OxiShield™, the UVRP's will no longer be able to "see" the sun's UV rays which will prevent the photo-catalytic reaction from occurring. It is this photo-catalytic reaction that generates a chemical reaction on the treated surface which prevents the re-growth of algae, mold and mildew.
 Do I have to use a stripper before re-staining and reapplying OxiShield™ Algae and Mold Barrier?
No, in most cases you can reapply OxiShield™ by simply following The O2 System™ directions: Step 1 is to clean the surface using: OxiOut ™ Algae and Mold Remover, then applying Step 2: OxiShield™ Algae and Mold Barrier. That's all there is to it.
 Can I apply The O2 Algae and Mold Removal System™ year round?
No, you should not apply or store where air or surface temperature could exceed 120°F, or drop below 40°F. For best results, always allow OxiShield™ at least 8 hours of cure time before exposing the treated surface to vehicle traffic, foot traffic, or rain. It's also important that the treated surface not be exposed to freezing temperatures for at least 48 hours after application. Always avoid applying The O2 System™ to hot surfaces, so as to avoid flash drying. Remember there can be a difference between outside temperature and surface temperature.
 What are Ultra Violet Reactive Particles (UVRPs) in OxiShield™ Algae and Mold Barrier?
UVRP's are a key ingredient in OxiShield™. OxiShield™ is a photo-catalytic surface treatment that uses nano technology to react to the ultra violet rays of the sun. UVRP's are very small particles, less than one billionth of an inch in size, when these particles are exposed to the direct, or indirect, ultra violet rays of sun; they trigger a chemical reaction on the treated surface. It is the interaction of the UVRP's and the sunlight that trigger the chemical reaction that prevents the re-growth of algae, mold or mildew on the surfaces you treat. (Ultra violet rays are present anywhere there is visible sunlight. While UV rays are strongest in direct sunlight, you will even find ultra violet rays present under a shade tree or in the shadow of a building)
 Can I Apply OxiShield over a Stained or Painted Wood Surface?
Yes, you can apply OxiShield™ over a stained Stained or Painted Wood Surface once the stain/paint has been on for at least 30 days.
If a customer puts OxiShield™ on a surface that has been recently stained, painted or a sealer has been used and uses a pump sprayer to apply, the possibility for "Beading" exists. "Beading" is the same as "Pooling" and is caused due to lack of bonding to the surface. In the event that "Beading" occurs the customer should lightly wipe down the area with a towel or mop and this will eliminate any small white dots from forming once the Shield has dried.
If the surface has not dried and white dots appear, then let the surface stand for 7-10 days and use a stiff brush on the surface to remove the white dots. If this does not work moisten a mop or towel with additional OxiShield and lightly rub the surface. Once it dries it should eliminate the spotting.
For your convenience, you will find the recommended precautions to take when using The O2 Algae and Mold Removal System™ here.
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