Can this be used on outdoor porcelain tiles

Yes it can, ive used it to seal outdoor porcelain tilef step

Does it make the tiles slippery when wet (As stated in one review)?

I think it depends on what tiles you put it on. My understanding is if you apply to the really shiny tiles then maybe you shoudn't be, as they have good protection already, and can make them super slippy. We sealed some matt porcelain outdoor tiles and it worked a treat. A slight sheen and not slippery when it rains

Does this protect against water getting into / underneath the tiles?

Sorry I am not entirely sure what you are asking, the sealer soaks in and protects against moisture penetration. It would in turn stop moisture permeating through the porcelain from the base work underneath to some degree. Hope that helps. Nigel@Smartseal

What is the coverage for 5L?

This is one coat sealer, coverage 10-20 m2 per litre. Hope that helps, George@Smartseal

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SmartSeal Porcelain Tile Sealer - 5L - Breathable, One Coat, Wet Look Porcelain Sealer for Internal & External Use. Protective, Ceramic Tile Sealant for Patios, Paths, Walls & Floors

SmartSeal Porcelain Tile Sealer - 5L - Breathable, One Coat, Wet Look Porcelain Sealer for Internal & External Use. Protective, Ceramic Tile Sealant for Patios, Paths, Walls & Floors

Product ID: 420094224

Details

Brand
SmartSeal
Item dimensions L x W x H
18 x 13 x 27
Material
[INF] sealant
Style
5L
Water resistance level
Waterproof

💧Breathable wet-look finish

🧽Easy application & maintenance

🛡️One coat durable protection

¥57144

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Description

🛠️ Seal the deal with SmartSeal — where protection meets style effortlessly!

ULTIMATE TILE DEFENSE - One thin coat delivers superior stain and abrasion resistance for both indoor and outdoor porcelain and ceramic tiles.
LOW MAINTENANCE LUXURY - Waterproof sealant simplifies cleaning and protects grout, keeping your spaces pristine with minimal upkeep.
SHOW STOPPING WET LOOK - Enhances natural tile beauty with a subtle satin sheen that elevates patios, floors, and walls to a sleek, modern aesthetic.
BREATHE EASY STAY PROTECTED - Breathable polymer formula prevents moisture buildup while resisting oil, grease, algae, and mold growth.
EFFORTLESS APPLICATION COVERAGE - Covers up to 20m² per litre with a simple microfiber cloth or mop application—perfect for busy professionals seeking quick, effective results.

SmartSeal Porcelain Tile Sealer is a premium 5L polymer-based liquid designed for both internal and external porcelain and ceramic tiles. It provides a breathable, waterproof, one-coat application that enhances tile appearance with a durable wet-look satin finish. Ideal for patios, floors, walls, and paths, it offers superior protection against stains, abrasion, oil, and mold, while simplifying maintenance and extending tile lifespan.

Specifications

ASIN	B09QMTPWP7
Best Sellers Rank	17,695 in DIY & Tools ( See Top 100 in DIY & Tools ) 333 in Sealers
Brand	SmartSeal
Colour	white
Compatible Material	Porcelain, Ceramics
Customer Reviews	4.3 out of 5 stars 311 Reviews
Included Components	Product Only
Item Dimensions	18 x 13 x 27 centimetres
Item Form	Liquid
Item dimensions L x W x H	18 x 13 x 27 centimetres
Item form	Liquid
Manufacturer	Smartseal UK Ltd
Manufacturer Part Number	SS-PORCSEAL-5
Material	[INF] Polymer-based sealant
Number of Items	1
Style	5L
Style Name	5L
Surface Recommendation	Floors,Porcelain,Tiles,Walls
Unit Count	5000.0 millilitre
Water Resistance Level	Waterproof
Water resistance level	Waterproof

Reviews

A**Y

Very Happy with this Product

More than happy with this product. I just applied with a Microfibre Cloth after cleaning my Porcelain Tiles to remove the residue after grouting them. I personally feel the finish after applying the Sealer was just what I was after, a slight Matt finish and not to shiny which really enhances the tiles.

27.09.2026

B**R

Does what it says on the can.

Easy to apply, Used on a water feature to bring out reflections in when blade running.

25.05.2026

M**I

Great porcelain sealer

Great product, did a Great job. Well worth the money

5.08.2026

P**M

Spot on

Easy to use, when dry nice finish does what it says

2.07.2026

C**O

Value for money

Not very impressed misleading advert wanted to purchase 5 L showed a picture of 5 L in the advert ended up with 1 L

3.10.2025

B**N

Superb

Really impressed with the result,

7.07.2026

A**R

Porcelain tile sealant

Good but care should be taken when applying to avoid streaks. Try to apply as large an area as possible to avoid streaks

3.09.2026

M**E

Vanishing

Have a nice sheen to the tiles

25.08.2026

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¥57144

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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