Masonry Defender, Masonry, Clear Siloxane Industrial Sealant, 9 lb 1 gal
Masonry Defender, Masonry, Clear Siloxane Industrial Sealant, 9 lb 1 gal
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Masonry Defender, Masonry, Clear Siloxane Industrial Sealant, 9 lb 1 gal

4.5 stars out of 4 reviews
(4.5)|
4 ratings

Key item features

  • Clear Protection: Provides a long-lasting, non-glossy invisible coat to masonry surfaces without leaving any residue or altering the color or appearance of your brick or stone chimney
  • Water Repellent: Eco-friendly, water-based siloxane penetrating brick sealer that bonds with masonry minerals for long-lasting water protection, causing water to bead instead of seeping into brick pores
  • Chimney Sealer: Protects your chimney and other masonry surfaces from spalling, flaking, or cracking, while resisting freeze-thaw damage and mildew or fungus buildup
  • Easy Application: Ensure the surface is clean and clear of debris. Use a low-pressure pump-up garden sprayer for even application. Coverage: 1 gallon treats 90-150 sq ft
  • Versatile Use: Suitable for residential chimneys, brick walls, masonry structures, and other vertical masonry substrates including stone, brick, stucco, granite, limestone, and cultured stone
  • Breathable Sealer: Non-film forming, breathable brick sealer that will not alter surface color or appearance, with slight darkening possible on dense surfaces
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Current price is $37.49
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Columbus, 43215
Arrives by Thu, Apr 9
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Sold and shipped by Supply the Home
4.308257698090094 stars out of 5, based on 17959 seller reviews(4.3)
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4.5 out of 5 stars
stars4 ratings3 reviews
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Showing 1-3 of 3 reviews

Mar 24, 2024
dk1947
Item details
Size: 1 gal
Sold bySupply the Home
5 out of 5 stars review

Verified Purchase

Positive.

Easy to apply. works as advertised.

Incentivized Review
Helpful?6N2DA5GZGGH0785879686
Jun 17, 2025
Jennifer
Item details
Size: 1 gal
Sold and shipped bySupply the Home
4 out of 5 stars review

Verified Purchase

Easy Application

Read through instructions and seems easy enough to use, but have to be careful about protecting everything around the bricks fireplace so as not to damage anythings. Although haven't used it yet, it seems like it would be good for protecting the bricks on fireplace.

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Mar 10, 2026
karen
Top Reviewer
Item details
Size: 1 gal
Sold and shipped bySupply the Home
4 out of 5 stars review

Verified Purchase

easy to use

I like that this sealer went on easy and did not have a strong odor.

Incentivized Review
Helpful?6N2DA5GZGGH0785879686