What is the difference between 511 Porous Plus Penetrating Sealer and 511 Impregnator Penetrating Sealer? I need it for concrete kitchen countertops.

I used two coats of the 511 Impregnator Sealer on the white grout between my porcelain floor tiles in my kitchen. Despite frequent cleaning, it wasn't long before the grout became discolored, until now where it is black. Would the 511 Porous Plus be more effective in keeping the dirt out of the grout? If I should apply the Porous Plus, how do I prepare the grout after I clean it?

How many sq feet does a pint cover?

It depends on what you are sealing. For slate, flagstone and Saltillo about 250-300 sq. ft. per quart. For polished stone--granite, marble --likely 1000 sq. ft. per quart. For slate I use about 1 Qt. per 300 sq. ft. A bit more with Travertine. It does a great job. I recommend their cleaner prior to sealing. A Pint of the cleaner goes a long way. Hope this helps.

I used this to seal marble tile and grout. I had used another product in my other shower which worked fine with my kitchen granite counter tops, but marble and grout are more porous. After applying this product two time with paintbrush and then wiping down five minutes afterwards with moist towel, my shower was sealed real nice. I even went back and re-did my other shower. I found it best to pour a little bit in cup and apply in uniform direction with brush and wiping down in same direction. This stuff is top notch, but open a window or turn on an exhaust fan as it has a potent smell.

Can this be used effectively on a slate floor?

According to the instruction label on the back of the product, yes, it can be used on a slate floor.

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Miracle Sealants 511 Porous Plus Penetrating Stone & Tile Sealer, Gallon

Miracle Sealants 511 Porous Plus Penetrating Stone & Tile Sealer, Gallon

Product ID: 268991412

Details

Brand
Miracle
Item Weight
7.1 pounds
Item dimensions L x W x H
4.25 x 7 x
Material
Polymer-based
Style
Sealer

💧Water & oil resistant barrier

☀️UV transparent & weatherproof

🛡️4,000 sq ft coverage

320895CFA

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Description

🛡️ Seal your space with invisible strength—because your surfaces deserve the best.

INVISIBLE ARMOR - Creates a clear, non-yellowing barrier that preserves your surface’s natural beauty.
FOOD SAFE CONFIDENCE - Safe for use around food prep areas, combining protection with peace of mind.
MASSIVE COVERAGE POWER - One gallon seals up to 4,000 sq ft, perfect for large projects or multiple spaces.
WEATHERPROOF UV SAFE - Formulated to resist sun damage and harsh weather without fading or peeling.
ULTIMATE SURFACE SHIELD - Protects porous stone & tile from water, stains, and slips—inside or out.

Miracle Sealants 511 Porous Plus is a premium penetrating sealer designed for porous stone and tile surfaces. It offers superior water, stain, and slip protection while maintaining the natural look of materials like terracotta, limestone, and grout. Covering up to 4,000 square feet per gallon, it forms a durable, UV-transparent barrier that resists weathering and won’t yellow over time. Safe for indoor and outdoor use, including food prep areas, it’s the go-to solution for long-lasting, invisible surface protection.

Specifications

ASIN	B000VX5FVK
Best Sellers Rank	#14,121 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #54 in Hardware Sealers
Brand Name	Miracle Sealants
Color	Yellow
Compatible Material	Terracotta
Customer Reviews	4.5 4.5 out of 5 stars (1,337)
Included Components	511 Porous Plus Sealer
Item Dimensions	4.25 x 7 x 11.5 inches
Item Form	Liquid
Item Highlight	Deep penetrating stain & water protection for porous materials - natural stone, slate, travertine, limestone , tile & grout.
Item Weight	7.1 pounds
Manufacturer	Rust-Oleum
Material Type	Polymer-based Liquid
Model	PLUSGAL4
Number of Items	1
Number of Packs	1
Part Number	PLUSGAL4
Style Name	Sealer
Surface Recommendation	Tile
UPC	753927511271
Unit Count	128 Fluid Ounces
Water Resistance Level	Water Resistant

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320895CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

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