NOTE: Water penetration to your chimney can cause costly damages, such as staining to your chimney, loss of insulation value, freeze/thaw damage, deterioration & possibly structure failure. Prevent water damage with this water repellant made specifically for your chimney. It will reduce water penetration into the masonry by 99.9%. It's also 100% vapor permeable, which means it won't trap water vapors that may pass through the bricks when the chimney is in use. Other products, like you might see in your local hardware store, can slow down water vapors as they pass through the chimney. If the slowed vapors condense into water and freeze before being released, they can cause spalling and freeze/thaw damage to your chimney.
Water Repellant is available in Water-Based or Solvent-Based. Water-Based is the most common, however if your chimney is near salt-water areas or has been previously treated, solvent-based is recommended. The average coverage rate for most chimneys is 125 sq. ft per gallon (625 sq ft total per 5 gallon container). 10 Year Warranty.
NOTE: Is a premixed brushable sealant for repairing your masonry chimney crown.
Using a 3" or 4" bristle paint brush, simply apply a first thin coat over the entire crown, wait a few minutes for a tacky film to form, then brush a second heavier coat on. It cures completely within 2-4 hours! Each 2 gallon container will cover approximately 80 sq ft. CrownCoat can be custom colored using standard mortar dye. 15 Year Warranty
NOTE: Is an elastomeric crack sealant that is great for sealing minor cracks (up to 1/8" wide) on the brick faces and at the mortar or brick joint interfaces. Simply brush it on and in about 6 hours it will dry to a clear, milky white film! Easy to apply and cleans up with soap & water. Each ½ gallon container will cover the mortar joints surrounding about 550 standard bricks or 100 sq. ft.
For best results, use Crack Magic after a Water Repellant treatment. Crack Magic can be applied immediately following the Water-Based treatment while the bricks are still damp, however if using the Solvent-Based treatment, allow it to dry completely before applying Crack Magic.
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Quick Help
How do I stop water from entering my chimney during hard rains?
Let's answer a question with a question! Start at the top: do you have a Chimney Cap or Damper? If not, this will help prevent water from entering the chimney flue. If you already have a cap/damper, inspect the chimney's crown for cracks, cracks or separation around the roof flashing, and inspect mortar joints for severe cracks. Then, pour some water directly on the brick and watch how quickly it's absorbed. If it soaks in within a few seconds you know the chimney is vulnerable and you may need to waterproof your chimney with Water Repellant.
If the crown on the top of my chimney is starting to crack and deteriorate what can I use to repair it?
If the mortar crown is loose, crumbling or severely deteriorated, it should be replaced with a new cast-in place concrete crown. However, if the crown is damaged but structurally sound, larger cracks and voids can be filled with a patching cement or high quality caulk then covered with Crown Coat.
What can I use to repair the minor cracks on my brick chimney? Crack Magic is a highly durable silicone elastomer (think of it as a paintable caulk) that is perfect for repairing cracks up to 1/8" wide. It's easily applied with a brush and dries in about 6 hours to a milky white film that will not significantly change your chimney's appearance!
