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 Premium Penetrating Sealer for Countertops, Stone & Tile, Gallon

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

Product ID: 268991412

Details

Brand
Miracle
Item Weight
7.12 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

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VT89418

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Details

Brand
Miracle
Item Weight
7.12 Pounds
Item dimensions L x W x H
4.25 x 7 x

Description

🛠️ Seal smart, live stylish—protect your surfaces like a pro!

SLIP STAIN DEFENSE - Reduces slipperiness while repelling stains and moisture effortlessly
DUAL ENVIRONMENT READY - Safe and effective for both indoor kitchens and outdoor patios
INVISIBLE YET POWERFUL - Maintains natural look with no yellowing or glossy residue
MASSIVE COVERAGE EFFICIENCY - One gallon shields up to 4,000 sq ft—perfect for large projects
UNMATCHED SURFACE PROTECTION - Seals porous stone & tile with invisible, durable defense

Miracle Sealants 511 Porous Plus is a premium penetrating sealer designed for porous surfaces like stone, tile, and grout. It creates an invisible, water- and oil-resistant barrier that protects up to 4,000 sq ft per gallon without altering the natural appearance. UV transparent and weatherproof, it’s ideal for both indoor and outdoor use, providing superior stain, water, and slip protection while remaining safe around food prep areas.

Specifications

ASIN	B000VX5FVK
Best Sellers Rank	#17,558 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #71 in Hardware Sealers
Brand	Miracle Sealants
Brand Name	Miracle Sealants
Color	Yellow
Compatible Material	Terracotta
Customer Reviews	4.5 out of 5 stars 1,313 Reviews
Included Components	511 Porous Plus Sealer
Item Dimensions	4.25 x 7 x 11.5 inches
Item Form	Liquid
Item Weight	7.12 Pounds
Item dimensions L x W x H	4.25 x 7 x 11.5 inches
Manufacturer	Rust-Oleum
Material	Polymer-based Liquid
Material Type	Polymer-based Liquid
Model	PLUSGAL4
Number of Items	1
Part Number	PLUSGAL4
Style	Sealer
Style Name	Sealer
Surface Recommendation	Tile
UPC	753927511271
Unit Count	128.0 Fluid Ounces
Water Resistance Level	Water Resistant

Reviews

B**L

28.03.2026

C**P

23.03.2026

C**E

10.04.2021

I**S

29.04.2025

A**A

1.04.2020

V**O

24.04.2026

2**R

15.08.2021

K**S

26.04.2026

B**E

23.02.2023

B**O

3.05.2021

A**D

7.09.2019

Z**Z

25.07.2023

C**E

11.06.2017

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