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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Grout Pen For restoring tile grout. Dark Grey 5mm wide nib

Product ID: 260360317

Details

Brand
Rainbow Chalk
Ink colour
Dark Grey
Number of Items
1
Point type
Fine
Recommended uses for product
Tile Grout

📏Covers up to 60m grout lines

🦠Anti-bacterial & anti-fungal

🖊️5mm precision nib

₨511

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Description

✨ Restore, Protect, Impress — grout glow-up made easy! 🖌️

VERSATILE USE - Ideal for both floors and walls, transforming grout in kitchens and bathrooms alike.
PRECISION 5 MM NIB - Effortlessly restore grout lines with exact control and smooth application.
LONG LASTING COVERAGE - Refresh up to 60 meters of grout—perfect for full kitchen or bathroom makeovers.
ANTI BACTERIAL FORMULA - Protect your tiles from mold and mildew with built-in antimicrobial power.
WATER BASED NON TOXIC - Safe for enclosed spaces and eco-conscious homes without harsh chemicals.

The Rainbow Chalk Markers Limited Grout Pen features a 5mm reversible nib and a water-based, non-toxic ink that covers up to 60 meters of grout lines. Its anti-bacterial and anti-fungal formula not only restores grout’s clean look but also prevents mold reappearance, making it ideal for kitchen and bathroom tiles. Water-resistant and safe for enclosed areas, this pen offers a professional-grade grout refresh in a compact, easy-to-use design.

Specifications

ASIN	B0077LMF9Y
ASIN	B0077LMF9Y
Additional Features	Non Toxic
Best Sellers Rank	#52,519 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #181 in Tile Grout #381 in Flooring Products
Brand Name	Rainbow Chalk Markers Limited
Color	Dark Grey
Customer Reviews	4.2 4.2 out of 5 stars (3,944)
Customer reviews	4.2 4.2 out of 5 stars (3,944)
Date First Available	29 December 2013
Included Components	Grout Pen
Ink Base	Water
Ink Color	Dark Grey
Is Discontinued By Manufacturer	No
Is Waterproof	False
Item Diameter	5 Millimeters
Item Dimensions	18 x 18 x 140 millimeters
Item Type Name	Grout Paint Pen
Item Weight	27 g
Item model number	GP81116
Line Size	5mm millimeters
Manufacturer	Rainbow Chalk Markers Ltd
Manufacturer	Rainbow Chalk Markers Ltd
Manufacturer Part Number	GP81116
Marker Type	Paint Marker
Material Type	Acrylic
Model Number	GP81116
Number of Items	1
Number of Pieces	1
Point Type	Fine
Product Dimensions	1.78 x 1.78 x 13.97 cm; 27.22 g
Recommended Uses For Product	Tile Grout
Style	Compact
Surface Recommendation	Tile
Target Audience	Adult
UPC	722480211164 072248021116
Unit Count	7 Milliliters
Water Resistance Level	Water Resistant
Writing Instrument Form	Marker Pen
Writing Technique	Painting

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₨511

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered 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 Seychelles.

Secure transaction

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