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Defy ChimneyRx Masonry Chimney Water Repellent

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DEFY Masonry Chimney Water Repellent is a modified siloxane based product specifically designed for chimneys to penetrate deeply in to most masonry and concrete pores. Unlike acrylics, silicones, and other waterproofing sealers that form a film on the surface and trap water vapors, DEFY masonry waterproofing products allow deep penetration of the active ingredients of up to 1/4 inch or more.

As a result, the special siloxanes in DEFY Masonry Chimney Water Repellent react to form strong chemical bonds beneath a treated surface. These bonds allow the product to become a physical part of the structure and provide long-lasting water repellent protection without altering the appearance of the brick.

Please check out the helpful article on the link below:

Tips for Maintaining Your Chimney

Breathable Masonry Waterproofing Prevents Chimney Water Damage 

Moisture, from either internal or external sources, is usually present in brick, masonry, and concrete. A DEFY Masonry Chimney Water Repellent treatment is 100% vapor permeable, which allows the water vapors to escape. This reduces costly chimney repair such as spalling, scaling, deterioration, and freeze-thaw damage that results from trapped moisture when film-forming water sealers are used. The best way to prevent chimney water damage is by using chimney repair products such as DEFY penetrating (non film-forming) water repellents that will allow vapors to pass through.

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Average Rating: (From 2 Reviews): Positive Rating Positive Rating Positive Rating Positive Rating Half Rating
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Positive Rating Positive Rating Positive Rating Positive Rating Positive Rating This product works like it says it will
From of Holly Hill, Florida on .

After trying just about everything i could think of to stop a irratating leak in my 37 year old Brick Chimney that was leaking for over 7 years i researched what the cause could be and found out that chimneys need to be treated with a water repellent every 3 to 5 years. Mine was never treated from the day the house was built in 1977. I called Duval Paint and Decorating and discussed my leaking problem and before i could finish what was happening when it rained i was told exactly what was happening by the representative. I purchased Chimney RX and proceded to treat the chimney exactly how the instructions say to do including cleaning off the bricks and motar of the mold and other growth. I applied the Chimney RX (1 gallon) 4 times over a period of 30 minutes waiting for it to soak in. A week later i applied a second 1 gallon. We have had two downpours with moderate wind pushing the rain directing into the chimney and i can say honestly that my leaks are gone. Chimney RX works like it says it does.

Positive Rating Positive Rating Positive Rating Positive Rating Negative Rating Appears Fine
From of Pulaski, Virginia on .

10/30/13 - Repellent applied as stated in directions on a 45 year old masonry chimney that had no prior treatment. Coverage was 50 sq ft per gallon. Pricing was competitive and shipping by Duval most prompt. Website easy to use with excellent depth of product info. Tks, RBell

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