WARNING! Corte*Clean® does NOT contain & should not be expensively/dangerously/illegally MIXED with CHLORINE BLEACH or other chemicals. It does NOT have all the risks, environmental impacts, CO$T$, corrosion issues with structural metal, health issues related to breathing poisonous, debilitating chlorine and other known liabilities of using SODIUM HIPOCHLORITE based BIOCIDES for cleaning outdoor composites, especially when it comes to cleaning mold stains! It does not contain other polluting and/or dangerous chemicals such as Oxalic Acid, Phosphoric Acid, Acetone, Ammonia, Phosphates or Cetyltrimethylammonium Chloride. Are you aware of the potential penalties if caught using chemicals for purposes or on surfaces (porous vs. non-porous) that are not legitimate? Examples: Using Chlorine Bleach based biocides to clean mold against EPA & OSHA recommendations, letting corrosive chemicals come into contact with structural metal, against structural metal manufacturer recommendations or letting polluting chemicals drain from composites into natural waterways such as streams, rivers, lakes, estuaries or the ocean, regardless of who recommends or sells these products? Are you aware of the true potential costs of purchasing and using sodium hypochlorite & multiple other chemicals to clean specific staining issues from composites, especially if caught polluting, if structural decking hardware failure occurs or one breaths toxic fumes resulting in injury or worse due to semi-annual (Spring and Fall) cleanings? If not, keep on reading. It may shock you that chemical manufacturers, retailers and composite manufacturers continue to ignore these facts while putting composite owners, family's, pets, wildlife & our environment at risk!

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?

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 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."

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. 

BEFORE - Mold Stained ChoiceDek®

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.

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. 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, the climate & weather, and personal preference.

Unfortunately, some manufacturers choose to routinely recommend the pollution of our planet by recommending polluting chemicals. It is any persons guess as to how many gallons of these toxic chemicals end up being rinsed from composites into natural waterways & destroy eco-systems. Perhaps you are a hunter or fisherman that has seen the decline in species due to pollution? Fortunately composite owners have that choice, and we hope you will choose Corte*Clean® for cleaning your composite deck, dock or fence.

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

DURING Corte-Cleaning. Notice Corte*Clean® working on the right hand side of photo and as it begins to work on the left.

AFTER Corte-Cleaned! Railing is dry, decking is still wet.

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.

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!

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.

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.

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!

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.