Can this be used over painted/sealed grout?

I used on sealed grout and it worked great

What is the difference in the pen sizes? Does one contain more product or does it have a bigger tip?

The Large Pen is 15mm wide (about the size of a typical Jumbo Marker). The 5mm pen is about the size of a regular sharpie marker.

What size room does one pen cover?

Good question. The manufacturer states "up to 60 meters coverage for narrow grout joints". 60 meters is approximately 196 linear feet, however results vary as the porosity of grouts can very greatly.

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Rainbow Chalk Markers Limited Grout Pen Large Dark Grey - Ideal to Restore the Look of Tile Grout Lines

Rainbow Chalk Markers Limited Grout Pen Large Dark Grey - Ideal to Restore the Look of Tile Grout Lines

Product ID: 273027324

Details

Brand
Rainbow Chalk
Item dimensions L x W x H
32 x 32 x 159
Item weight
79 Grams
Material
Resin
Style
Compact

🎨11 rich, pigmented color options

⏱️Fast-drying in 30 minutes, durable finish

🖊️15mm reversible nib for all grout sizes

134.20 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

134.20 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Description

✨ Refresh your grout, refresh your space — no mess, all wow! 🖌️

ECO FRIENDLY SAFE - Water-based, non-toxic formula designed for indoor use with peace of mind.
VIBRANT VERSATILE - Choose from 11 sophisticated shades to match your modern home aesthetic.
LONG LASTING COVERAGE - One pen covers up to 100 feet of grout lines, ideal for any DIY project size.
UNIVERSAL APPLICATION - Perfect for bathroom, kitchen, floors, and backsplashes—no grout left behind.
EFFORTLESS GROUT REVIVAL - Pump, color, and transform grout without scrubbing or harsh chemicals.

The Rainbow Chalk Markers Limited Grout Pen in Dark Grey offers a quick, safe, and eco-friendly way to restore and refresh tile grout lines. Featuring a reversible 15mm nib for both sanded and unsanded grout, it delivers rich, fast-drying pigment that covers up to 100 feet. Ideal for kitchens, bathrooms, and more, this pen eliminates the need for scrubbing or regrouting, making it a must-have for stylish, hassle-free home upgrades.

Specifications

ASIN	B007D0J0CY
Best Sellers Rank	#89,489 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #272 in Tile Grout #621 in Flooring Products
Item model number	GP81216
Manufacturer	Rainbow Chalk Markers Limited
Product Dimensions	3.18 x 3.18 x 15.88 cm; 79 g

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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