The best type of sealer to use on a chimney both brick stone or masonry based is of a silane siloxane chemistry.
Chimneysaver brick sealer.
Protects horizontal and vertical surfaces.
Think of it as a paintable caulk.
When it comes to fixing tough chimney problems chimneysaver gives you top performance backed by extended warranties.
Chimney brick sealer clear water based siloxane sealer breathable water repellent for all exterior vertical masonry surfaces 1 gal 4 5 out of 5 stars 39 34 99 interior exterior brick sealer 1 gal clear satin acrylic sealer for vertical walls masonry sealer for reducing brick dust making interior brick walls easy to clean.
Waterproofs concrete and masonry surfaces.
Crack and joint sealant is a unique breathable silicone elastomer.
Professionals have used them for over 30 years.
Silane siloxane water repellent sealers penetrate into the surface of the brick where they chemically react to form a hydrophobic barrier within the pores.
This reaction forms strong permanent bonds beneath the surface and creates a hydrophobic zone that prevents water molecules from penetrating while allowing free migration of water vapors.
Chimneysaver products come with extended warranties that keep your chimney protected for the long term.
The best sealer to use to seal a brick chimney is a silane siloxane water repellent sealer.
100 breathable silane siloxane water repellent.
It will form an invisible barrier that blocks the return of unsightly stains.
Chimneysaver voc compliant solvent base water repellent reacts with the minerals in masonry in the presence of ultraviolet light and atmospheric moisture.
Moisture from a variety of sources is always present in masonry and concrete.
Chimneysaver is available in both solvent mineral spirits and water based formulas.
When water hits the brick it will roll right off instead of penetrating through.
They are excellent at repelling water preventing mold and mildew build up and preventing unsightly efflorescence.
This allows you to easily correct these defects without the time and expense of tuckpointing.
Chimneysaver water repellent with stain blocker protects masonry chimneys against damage caused when water and waterborne chemicals penetrate the masonry.
Chimneysaver water base water repellent reacts with the minerals in masonry in the presence of ultraviolet light and atmospheric moisture.
This reaction forms strong permanent bonds beneath the surface and creates a hydrophobic zone that prevents water molecules from penetrating while allowing free migration of water vapors.
The water based formula is most popular however if a water repellent has previously been applied to the masonry we recommend the solvent based formula.
