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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💧 Seal the deal with invisible strength!

SAFE FOR ALL ZONES - Food-safe and ideal for interior & exterior use
MAXIMIZE EFFICIENCY - Covers up to 4000 sq.ft per gallon on polished surfaces
SLIP RESISTANT FINISH - Hardens surfaces making them safer and less slippery
INVISIBLE YET POWERFUL - Penetrates porous surfaces without altering natural look
WEATHERPROOF YOUR SPACE - Resists moisture and stains for lasting durability

Miracle Sealants Plus QT SG 511 Porous Plus is a premium penetrating sealer that creates an invisible, moisture- and stain-resistant barrier while allowing vapor to escape. Suitable for both interior and exterior porous surfaces, it offers superior coverage—up to 4000 sq.ft per gallon on polished surfaces—without altering the natural appearance. UV transparent and food-safe, it hardens surfaces to reduce slipperiness, making it a versatile, durable solution trusted by professionals.

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Material	As shown in the image
Brand	Miracle Sealants
Style	Compact
Item Weight	794 g
Item dimensions L x W x H	5.7 x 13.3 x 19.1 Centimeters
Water Resistance Level	Water Resistant
Item Form	Liquid
UPC	753927511264
Net Quantity	1 Count
Global Trade Identification Number	00753927511264
Number of Items	1
Colour	Blue
Surface Recommendation	Tile
Manufacturer	Miracle Sealants
Country of Origin	USA
Item model number	PLUSQT6
Product Dimensions	5.72 x 13.34 x 19.05 cm; 793.79 g
ASIN	B000VX97SM

Miracle Sealants Plus QT SG 511 Porous Plus Penetrating Sealer, Quart

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