Is this a Matt finish and do I need to prep air interior stonework with any other product?

It is a 'dry' invisible finish, stone work needs to be clean and dry, thats all. Please note the sealer is highly effective and will leave the surface with a 'teflon' like finish. it cannot be decorated/painted or plastered over as nothing will adhere. Hope that helps. Regards, Nigel@Smartseal Support

Can I use this product on the stone of my internal fireplace, my house is ancient and my unused fire hole seems to always feel damp?

Yes you can use the product internally, no problem. The sealer contains no ingredients that will give off any harmful fumes or ingredients. Regards Rick@Smartseal

I cannot access the exterior of the garage wall as it is too close to next doors garage. Can this be used on the internal face of that wall instead?

If it's just plain brick, yes, but can't see point of it, as it's purposes is to prevent water penertrating the brick surface. And it ain't going to rain inside the garage !.

Does this stop salt appearing on the bricks

You would need to remove existing salts, then apply. The sealer will then inhibit any further salts appearing. Hope that helps!

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Smartseal Brick Sealer - 5L - Breathable Brick Waterproofer & Clear Sealant. Protective Damp Seal & Waterproof Sealant for Bricks, Masonry, Concrete & Stone. Easy to Apply. Lasts up to 10 years

Product ID: 57193369

Details

Brand
SmartSeal
Item weight
5.11 Kilograms
Material
Acrylic
Style
5L
Water resistance level
Water

🌬️breathable, prevents moisture build-up

🖌️easy brush or roller application

🛡️10-year waterproof protection

€ 99.82

Duties & taxes included

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧱 Seal smart, live dry — your bricks’ best decade-long bodyguard!

INVISIBLE ARMOR - Crystal-clear finish that preserves your masonry’s natural look while delivering powerful water repellency.
DECADE LONG DEFENSE - Protect your brickwork with a waterproof seal that lasts up to 10 years—no reapplication hassle.
BREATHE EASY SEAL TIGHT - Advanced breathable formula prevents trapped moisture, safeguarding your interiors and exteriors alike.
VERSATILE SURFACE SAVIOR - Perfect for bricks, concrete, stone, and masonry—interior or exterior, this sealant adapts to your project needs.
EFFORTLESS APPLICATION COVERAGE - 5L covers up to 25㎡ with just two coats, applied easily by brush or roller for a flawless finish.

Smartseal Brick Sealer is a clear, breathable acrylic waterproofing solution designed for bricks, masonry, concrete, and stone. Offering up to 10 years of durable water repellency, it prevents moisture ingress while allowing surfaces to breathe, making it ideal for both interior and exterior use. Easy to apply by brush or roller, 5 litres covers up to 25㎡ with a natural, invisible finish that protects and preserves your surfaces.

Specifications

ASIN	B01BSX3FPE
Best Sellers Rank	11,497 in DIY & Tools ( See Top 100 in DIY & Tools ) 230 in Sealers
Brand	SmartSeal
Colour	Clear
Compatible Material	Brick, Cement, Wall, Concrete, Facade
Country Of Origin	United Kingdom
Customer Reviews	4.6 4.6 out of 5 stars (181)
Included Components	Product Only
Item Form	Liquid
Item Weight	5.11 Kilograms
Manufacturer	Smartseal UK Ltd
Manufacturer Part Number	Sm-bricks-5
Material	Acrylic
Number of Items	1
Number of Packs	1
Style Name	5L
Surface Recommendation	Wall
Unit Count	5000 millilitre
Water Resistance Level	Water Repellent

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