Name: MAPEI Ultracolor Plus FA Castle Wall #5227 All-in-one Grout (10-lb)
Brand: MAPEI
SKU: 5014316505
Price: 25.98 USD
Availability: InStock
Rating: 4.5 (2803 reviews)

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General
Color/Finish Family	Gray	Manufacturer Color/Finish	Castle Wall #5227
Type	All-in-One	Unit of Measure	Pound(s)
Drying Time (Hours)	3	Sealing Required	No
Use Location	Indoor or outdoor	Series Name	Ultracolor Plus FA
Unit of Measure Quantity	10

Dimensions
Maximum Coverage Area (Sq. Feet)	828

Features
Mold Resistant	Yes	Lowe's Exclusive	No
Stain Resistant	Yes (no additive required)	Freeze Resistant Post Installation	Yes
Shrink-Resistant	Yes

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -

Warranty
Warranty	1-year limited

Compatibility
For Use with Fireplace Exteriors	Yes	For Use with Vinyl Floors	No
For Use with Garage Floors	Yes	For Use with Kitchen Counters	Yes
For Use with Garage Walls	Yes	For Use with Bathroom Floors	Yes
For Use with Patios	Yes	For Use with Shower Walls	Yes
For Use with Pools	Yes	For Use with Shower Floors	Yes
Sample Item Number	5519158	For Use with Bathroom Walls	Yes
For Use with Kitchen Backsplashes	Yes

Miscellaneous
UNSPSC	30111500

Check out the Best Selling Grout on Lowes.com

Review

4.5 out of 5

2803 Reviews

86% Recommend this product

Ratings may include incentivized customer reviews.

Read All Reviews

+ 259

What Customers Are Saying

Customers overwhelmingly praise the grout for accurate color matching and ease of mixing and application, with most noting it blends seamlessly with tiles for a professional finish. Many highlight straightforward mixing when following instructions carefully, and several appreciate the quick setting time. However, some report the actual dried color appears lighter than the bag image, and several find the rapid drying complicates installation if not managed carefully. A few also express confusion about sealer requirements. Despite these drawbacks, most customers consider the product reliable and recommend it for tile projects.

Customer review summary generated by AI, including incentivized reviews.

2803 Customer Reviews

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Cool off white

Would Recommend

Bob builderAugust 28, 2026
From Ultracolor Plus FA Honey Butter #5222 All-in-one Grout (10-lb) Verified Purchaser

Was this Review Helpful ?

READ THIS... "Rain" dries white...

Would Not Recommend

Son chose Rain for his shower. it looked great as it was being applied. i followed the mixing directions to a tee (even got the measuring cup out) because i read that it could impact the results. When wet, it looked just like the color. I thought it was strange since I know that the sanded grout dries lighter usually, but since i had short working time, I kept going. this dried WHITE, yet the same color caulk is gray (one other reviewer's picture shows this as well). I should have looked a...

August 26, 2026
From Ultracolor Plus FA Rain #5101 All-in-one Grout (10-lb)

Was this Review Helpful ?

Response from MAPEI

Thank You for your feedback. We are sorry to hear your grout did not come out the intended color. There are a few reasons why grout would not dry the...

MAPEIAugust 27, 2026

MAPEITechnicalServices

Be careful when selecting color

Would Recommend

Colors do not match the manufacturer’s photos. Buy 2-3 shades darker. I purchased Rain because the Mapei photo showed a grey grout color. And when mixed with water, this grout was like the grey shown in the photo. But when dry, it’s a very light (almost white) color, which leapt out from between the grey tiles I was trying to match. I had to cut the grout out and order a new, darker grout! Hopefully, it will be better match.

LindaAugust 24, 2026
From Ultracolor Plus FA Warm Gray #5093 All-in-one Grout (10-lb)

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/ef9e37e1-13b5-50b3-a49c-f3d53bd8d876

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/cd45c5a8-baeb-57cb-93cf-5787699ef38c

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157 Questions

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COMPARE PRODUCTS

		Name	Current Item MAPEIUltracolor Plus FA Castle Wall #5227 All-in-one Grout (10-lb)
		Ratings	2799
		Type	All-in-One
		Stain Resistant	Yes (no additive required)
		For Use with Shower Walls
MAPEIUltraColor Plus Max Pure White #5117 All-in-one Grout (10-lb)	MAPEIFlexcolor CQ Avalanche #5038 Sanded Acrylic Premix Grout (1-Gallon)	MAPEIFlexcolor CQ Castle Wall #5227 Sanded Acrylic Premix Grout (1-Gallon)	MAPEIUltraColor Plus Max Jet Black #5118 All-in-one Grout (10-lb)
159	527	527	159
All-in-One	Acrylic premix	Acrylic premix	All-in-One
Yes (no additive required)	Yes (no additive required)	Yes (no additive required)	Yes (no additive required)

FEATURED PRODUCTS

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