Trex® partially Corte*Cleaned®

Wet, with water.

Dry.

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WARNING! A major SAFETY issue facing unsuspecting composite owners who choose to use corrosive to structural metal cleaning chemicals!

Composite cleaning chemicals that contain sodium hypochlorite, or are dangerously mixed with chlorine bleach, are corrosive to stainless steel, and galvanized structural metal decking hardware, such as connectors & fasteners like screws & nails, commonly recommended & used in the construction of composites. Manufacturers of these items, such as USP® Connectors, disclose the "causes of external attack from chemicals like chlorine bleach" and Simpson Strong-Tie® disclose the "general corrosion risks" of "cleaning chemicals" due to the known risks & liabilities. If composites have been previously cleaned with corrosive cleaning chemicals, corrosive chemicals have been used to melt snow & ice, or composites are located near corrosive environments, generally close to the ocean, one should have the structure supporting & holding composites together, inspected by a professional. Structural metal failure due to corrosion is of great concern, especially since composites are generally designed & warranted to last decades longer than wood decks. Due to the fact that the number of deck collapses is on the rise, as the composite decking industry has rapidly grown, routine deck inspections become increasingly important! Since 1999, more than 850+ people have been reported injured, while over 20+ deaths have been documented. Many could have been prevented through proper, routine inspection and the use of non-corrosive cleaning chemicals, such as Corte Clean. Save yourself time, money, risk & liability. Choose non-corrosive to structural metal, eco responsible, biodegradable, Corte*Clean® for semi-annual (Spring and Fall) cleaning, of all common stians from decks, docks or fences & point out these facts to any composite manufacturer, whom recommends corrosive cleaning chemicals, such as those that contain sodium hypochlorite, acids, ice melting salts, etc. Hopefully this will save people from injury or death. 

Composite Deck Collapse Video Click Here

Dock Collapse Video

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Survey

Do you think it is smart or wise to clean a composite deck, dock or fence of mold with chlorine bleach, products mixed with chlorine bleach or other sodium hypochlorite based biocides?


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Do you think it is wise or smart to ignore disclosures & warnings from structural metal decking hardware manufacturers (screws, nails, joist hangers, etc.) related to the use of corrosive cleaning chemicals such as those that contain sodium hypochlorite or acids when cleaning composites that are structurally supported & held together by these items?


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Survey

If a person or company recommended that you violate environmental laws, in order to clean your composite deck, dock or fence, would you, even if you knew you wouldn't get caught and penalized?


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Are you concerned about breathing toxic chlorine fumes when cleaning composites with products that contain sodium hypochlorite or are dangerously/illegally mixed with chlorine bleach?


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Survey

Would you clean expensive composites with sodium hypochlorite, that weathers/bleaches/fades composites color, beyond what naturally occurs, by exposure to the sun?


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Repeat Application Survey

How many "repeat" applications of Corte*Clean at "MAXIMUM STRENGTH" does it generally take to thoroughly clean composites of black mold stains, when first noticed, while allowing the composites to "thoroughly dry" before using Corte*Clean and in-between applications?



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Survey

I have neglected to routinely Corte*Clean composites, from the time it was installed,even though I noticed black mold stains appearing on the composites or I have previously used other cleaners, that contain sodium hypochlorite. Will it take me additional REPEAT applications of Corte*Clean at MAXIMUM STRENGTH to a THOROUGHLY DRY composite surface to get it thoroughly clean?


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When applying Corte*Clean, do I repeat the application process until the cleaner no longer becomes dirty or discolored and all stains are removed? Is this important because it removes the tannins (sugars) from wood fibers or other organic materials from which fungi, such as black molds feed?


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Can I dilute Corte*Clean down, to the reduced strength, apply one final coat, to a thoroughly Corte*Cleaned composite surface, allowing the Corte*Clean to soak in & dry on the composite? Is it best to do this prior to the composite receiving moisture (rain, morning dew, snow or ice)? Will the white colored Corte*Clean residue remain until thoroughly rinsed? Has this been proven to help keep composites clean for longer periods of time?


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Depending on how composites are used & the environment they are located, should composites be Corte*Cleaned at LEAST twice (2X) per year (Spring & Fall)? In climates that receive more moisture, should I consider Corte*Cleaning composites more often? Will it cost me less time & money to keep composites thoroughly clean if proactively Corte*Cleaned? Is it as simple a proactively spraying Corte*Clean on and letting natural moisture rinse it?


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If I have neglected to properly clean a composite deck, from the time it is new & let stains build up on it, that have blocked the the sun from naturally weathering/bleaching/fading it, then I Corte*Clean it, will there likely be color variations similar to where I have placed door mats, flower pots, furniture & other items that have never been moved? Will the sun naturally weather away any color variations once thoroughly Corte*Cleaned in approximately 8 to 10 weeks?


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You are here > FACTS > Corte-Clean® Facts

Corte-Clean® Facts

Corte*Clean® is the safest, most powerful, easy to use, cost effective environmentally responsible, non-toxic, biodegradable, proven product for cleaning & routinely maintaining composite deck, dock & fence materials, to prevent deep stains. This is because it is designed and intended only for this purpose. It is not a product that was designed & intended to clean other materials such as "wood" or "non-porous" materials of "mildew" stains, a very specific species of mold. Unfortunately, some cleaner manufacturers have added "composites" to label directions to sell more products even though they know these products will only bleach out common black, deeply rooted, mold stains from composites and not remove the spores (mold seeds), traped in the pours of most composites, resulting in imediate re-growth and the return of stains? Perhaps you have wasted your valuable time & money using products that don't work for this very reason while causing much damage to the composite, structure supporting the composite, your health and the environment, while exacerbating the problem?

                

BEFORE - Mold Stained Home Depot® Veranda®                AFTER - Corte Cleaned

Corte*Clean® has been proven effective by customers like you. It has been tested & endorsed by leading composite manufacturers, distributors & retailers who realize its many benefits over the competition. The information on this web site should be carefully considered. It will help guide you to why Corte*Clean® is the best, lowest cost, choice when used to routinely clean and maintain an expensive, long lasting composite.

Corte*Clean® does not contain or need to be expensively/dangerously/illegally mixed with the toxic, polluting, un-healthy, corrosive, environmentally destructive biocide chlorine bleach. Be aware of any manufacturer, retailer or chemical company selling products containing or to be mixed with this chemical for cleaning black mold from "porous" surfaces. The sale & use of "mold" cleaning products, containing this biocide, are commonly known as "THE BLEACH SCAM."

Perhaps you have noticed how products containing sodium hypochlorite generally never work to clean black mold stains in grout, in-between tiles, generally found in bathrooms, not white & sometimes gray silky looking "mildew" as generally stated on these products label directions, always rapidly returns? This is because products containing sodium hypochlorite are scientifically proven to exacerbate mold growth. See Oregon State Scientific Study.


Deck Sample - Before Corte-Clean
A Heavily Mold Stained ChoiceDek®

Corte*Clean® cleaning a heavily mold stained Lowe's® ChoiceDek®. Notice how the composite is no longer spotting but is entirely covered with mold stains due to the repeated previous use of sodium hypochlorite based biocides. This is because products containing this chemical only bleach the stain out and do not generally, effectively remove it, exacerbating the problem.

The irresponsible recommendation and use of products that contain sodium hypochlorite, the active biocide in chlorine bleach, that were generally designed and intended for cleaning "wood" or "non-porous" and/or other materials like non-porous vinyl siding of "mildew" stains is the number one issue facing the entire composite industry & unsuspecting composite owners that follow these recommendations. Unfortunately, this has frustrated composite owners who can't get their composite clean, & routinely keep them clean, without destroying the metal structures supporting & holding togeather most composites. Are you aware that the structural metal manufacturers, used to support & holding togeather most composites, don't recommend the use of corrosive cleaning chemicals?

Corrosive to structural metal chlorine bleach or other sodium hypochlorite based biocides are almost always routinely recommended and used against the products label directions when used to clean common black mold stains from composites, especially when these products are used to clean porous composites and clearly state "for non-porous surfaces only" or are rinsed from composites and allowed to drain into natural waterways such as "streams, rivers, lakes, estuaries or the ocean."

Products that contain biocides, such as "sodium hypochlorite", label directions often repeat federal law. This is why reputable products that contain sodium hypochlorite label directions state "Mildew", then define mildew as a specific subspecies of mold and clearly state "It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. Do not use this product in full strength for cleaning surfaces. Always dilute strictly in accordance with label directions" & "DO NOT allow product or rinse water to enter storm drains, lakes, streams or other bodies of water." Carefully read any reputable chlorine bleach label directions for proof. 

Deck Sample - Before Corte-Clean
BEFORE - Mold Stained ChoiceDek®
Deck Sample - After Corte-Clean
AFTER - Corte-Cleaned

Composite owners should be extremely cautious of products that contain sodium hypochlorite & Cetyl Trimethyl Ammonium Chloride (Cetyltrimethylammonium Chloride, also called; Hexadecyltrimethylammonium Chloride)! These two chemicals should never be used to clean composites because sodium hypochlorite, a strong oxidizing agent, mixed with Cetyltrimethylammonium Chloride, results in the rapid off-gassing of poisonous, chlorine fumes, resulting in short shelf life, while causing accelerated corrosion to structural metal holding together & supporting most composites! When rinsed from composites, & illegally allowed to drain into natural waterways, such as streams, rivers, lakes, estuaries or the ocean, these chemicals are extremely toxic to aquatic organisms, causing long term adverse effects in aquatic environments, that destroys eco-systems!

Other deck cleaners that contain the pestacide oxalic acid are for brightening wood fibers of tannin stains and removing rust stains that sodium hypochlorite based or mixed with products causes to structural metal. Neither of these expensive, toxic, dangerous chemicals generally removes grease & oil stains so a third (3rd) product is generally needed to be expensively purchased and used to remove these extremely common stain.

Be extremely careful if you choose to use sodium hypochlorite, then oxalic acid! These chemicals should never be intentionally or accidently mixed! They release poisonous chlorine gas! Unfortunately, this almost always occurs on porous composites and results in a lingering, unhealthy chlorine smell for weeks after these chemicals have been used! This smell is extremely umplesant and unhealthy. Perhaps you have experienced this and the resulting headache if you wern't wearing a NIOSH approved respirator for chlorine?

Much frustration has been experienced by composite owners who can't get their expensive composite routinely, thoroughly clean, when using these three (3) products! Not to worry, eco-responsible Corte*Clean® will get the job done without all the cost or risks of purchasing & using these other chemicals.

ChoiceDek Mold Stains

Mold Stained ChoiceDek®

Phosphates promote plant & algae growth (water molds commonly convienantly confused with lichens or mosses), which then die, increasing bacteria counts. As bacteria feast on the dead plants & algae, they reduce the amount of oxygen available in water bodies such as streams, rivers, lakes, estuaries or the ocean for other wildlife, destroying eco-systems. Because of these facts, phosphates should never be used to clean composites!

By purchasing and using Corte*Clean®, you will not be taking the risk of accidently or intentionally mixing toxic chemicals and releasing poisonous gas!!! (Example: accidently mixing sodium hypochlorite with oxalic acid, ammonia, etc.) You won't risk the penalties associated with illegally using polluting chemicals that are not legitimate. It is safe for cleaning mold & mildew stains from composites.

Corte Cleaned ChoiceDek

After one Corte-Clean® application.

Corte*Clean® is not a pesticide, known probable carcinogen, reproductive or developmental intoxicant. Its use is far more effective on tough composite stains than unhealthy, unproven, polluting chemicals while cleaning stains that these chemicals cause or leave behind. It should not agitate breathing problems such as bronchitis, asthma, emphysema, etc. like products that contain sodium hypochlorite. It does not have a toxic chemical smell. You will not be breathing toxic fumes that generally result in a terrible chemical headache or worse. Once used it will not off-gas toxins or have a lingering, toxic, unpleasant, unhealthy, nauseating smell.

                                               Half Corte-Cleaned Mold Stained Fiberon® Deck

You will not need to worry about Corte*Clean® causing rust stains or it being corrosive to structural metal fasteners (screws or nails) and connectors supporting and holding most composites together. The use of corrosive cleaning chemicals, such as those that contain or are mixed with sodium hypochlorite, will likely lead to expensive early replacement or dangerous and potentially costly failure that can result in injury or death!!! Corte*Clean® will not kill lawns or plants surrounding composites when used in accordance with the step by step, bilingual, Corte*Clean® label directions. It cleans without the expense and labor of buying and applying multiple cleaners for specific staining issues. Corte*Clean® will save you time, money and aggravation when routinely used.

                                            Neglected Mold Stained ChoiceDek®

It generally takes two (2) "repeat" applications of Corte*Clean® at "maximum strength" to clean composite stains when first noticed. Enough Corte*Clean® is provided in each bag to do two (2) "repeat" applications at "maximum strength." A bag of Corte*Clean® is designed to clean approximately 300 square feet of composite at "maximum strength." If the composite intended to be cleaned has been neglected or previously cleaned with unproven products, additional "repeat" Corte*Clean® applications may be necessary, requiring the purchase and use of additional Corte*Clean®.

Save yourself the added cost & effort. Be pro-active and routinely Corte*Clean® your composite at least twice (2X) per year! Spring & fall are generally best due to mild temperatures between 65-85 degrees F. If Corte*Clean® is proactively used, one (1) bag is designed to proactively clean approximately 500 square feet composites, with one (1) application, twice (2x) per year or a total of 1,000 Square Feet before it rains or the composite receives moisture. This will prevent the build-up of pollen and other debris that can support the growth of mold & stains that result. This is all that is generally needed to keep composites clean and looking their best. Note: Areas that are known for mold and receive routine moisture may require to be maintained more often (EXAMPLE: Spring, Summer, Fall & Winter) while areas that receive no moisture may only need to be cleaned once per year. It depends on how one uses their composite, what is spilled or lands on it, the climate & weather, and personal preference.

                                            Corte Cleaned ChoiceDek®

Imagine the positive impact it would have if every composite manufacturer and retailer made the simple choice to only routinely recommend environmentally responsible, proven, cost effective Corte*Clean® to resolve all common staining issues. Imagine if every composite owner choose to only use environmentally responsible products instead of multiple expensive, toxic, polluting, cleaning chemicals. Imagine how much better off our environment would be today and for future generations.

Dirty Moldy Veranda Composite Deck Rail

BEFORE Corte-Cleaning of Home Depot® Veranda®. Notice tannin staining and flower pot/mold staining (lower right hand part of photo).

Corte Cleaning Veranda Composite Deck RailDURING Corte-Cleaning. Notice Corte*Clean® working on the right hand side of photo and as it begins to work on the left.
Corte Cleaned Veranda Composite Deck RailAFTER Corte-Cleaned! Railing is dry, decking is still wet.

Corte*Clean® ONLY FAILS when our customers DO NOT read & follow its label directions/instructions or do not have enough Corte*Clean® to clean the intended square footage. If the person cleaning the composite does not read & follow the Corte*Clean® label directions, it is likely that the owner of the composite may not be satisfied with the results. However, Corte LLC does guarantee Corte*Clean® when used properly by following the Corte*Clean® label directions. If you have any questions regarding the use of Corte*Clean® make sure you contact Corte LLC. We do not want any customer to be dissatisfied with the results of Corte*Clean®.

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A common issue when cleaning NEW or NEGLECTEDcomposites...

is that the composites have not naturally weathered or been bleached/faded by exposure to the sun. Unfortunately, most do not know that most composites naturally weather because they did not read the composite literature before purchasing an expensive composite.

                            Trex® "Natural Weathering"/bleaching/fading

The above picture is of TREX®. The piece on top of the deck is a left over scrap from the below deck. The scrap on top of the deck has never been exposed to direct sunlight and allowed to go through the inevitable "Natural Weathering" process. They are from the same unit of TREX®.

The UVA & UVB radiation from our sun is very powerful at bleaching the color of composites. Unfortunately, chlorine bleach or other sodium hypochlorite based biocides generally bleach out the color of composites beyond what the sun will naturally, dulling the color of the expensive composite. This can be extremely frustrating for composite owners, especially if the owner paied more money for the upgraded color and the manufacturer recommended sodium hypochlorite for cleaning the composite!

A brown colored Trex® Deck (above photo) where sodium hypochlorite was repeatedly used, for years, to bleach out mold stains until it had little if any effect. Look closely, the mold is still their but the brown color is not!!!

Corte Cleaned. Notice how a little origional brown color is slightly noticeable. Notice how the black color from the mold stains has been removed. Where the mold stains were, is now a weathering issue. Weathering issues or color variations caused stains or other common items will be covered on the (next) page.

Corte*Clean® can definitely speed up the inevitable weathering process of most composites, especially when used at higher strengths. Corte*Clean®, at "maximum strength", will not bleach, fade or weather composites more than the sun would naturally. Corte*Clean® will not bleach, fade or weather composites more than chlorine bleach or other 6.15%+ sodium hypochlorite based biocides, but will likely slightly restore color of composites where sodium hypochlorite based biocides have been previously used.

A Corte Cleaned Trex® railing system & a un-cleaned, new rail cap. This is similar to the "Natural Weathering" Trex® shows on their website and not the bleached appearence sodium hypochlorite causes to composites!!! Most manufacturers clearly disclose weathering/fading issues in their product literature or on their websites under FAQ's or the products warranty.

TimberTech® Railing Weathering

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CLICK HERE to continue on to the Corte-Clean® "Mold & Mildew Stains" page.

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