Question 1

Can I use this on expoxy grout?

Accepted Answer

Yes but if you have trouble with adhesion, try this product which is specifically made for epoxy grouts: https://www.amazon.com/dp/B01HQR70U2

Question 2

How long does it take for it to dry? I poured a little water on it after several hours and the paint came off.

Accepted Answer

Grout Pen is dry to the touch in 5 min, but please allow a full 6 hours before getting wet.  Grout Pen works best on unsealed grout.  If your grout has been sealed previously this may prevent Grout Pen from being able to correctly adhere to the grout.

Simple Solution: Skip scrubbing tiles and use a grout pen to clean, whiten, and recolor your grout
Use Anywhere: Ideal for the bathroom, kitchen, and any other room that has floor or ceiling tiles
Long Lasting Ink: Tackle small or large DIY projects with a pen that covers up to 60 meters of grout
Rich Pigments: Grout paint markers available in 11 different colors with reversible 5mm or 15mm nibs
Advanced Formula: Non-toxic, water-based ink that helps protect against dark spots and stains

Question 3

What kind of prep work needs to be done before using this product?

Accepted Answer

Wash and dry the grout first, then apply GROUT PEN.

SEALED GROUT: Grout Pen may not bond to recently sealed grout. Test the grout with a few drops of water. If the grout does not absorb the water within a few minutes then the grout was likely sealed
TIP MAY WEAR DOWN: Tip is made of cotton, pressing too hard will damage tip. Contact seller for replacement tips if needed
SHAKE ONLY WITH CAP ON: Tip is removable and may fall out if shaken hard, only shake pen with cap on (note - Pen does not need to be shaken at all, instead gently pump tip to activate)
DRY TIP: Pen needs to be primed before use, all new Grout Pens come with a dry white tip. To activate gently pump the tip (20-30 times) until fully saturated

Question 4

Is one product enough for a small galley-kitchen floor?

Accepted Answer

Honestly it's difficult to say for sure, but the manufacturer says it can cover up to 40 liner meters (approx. 130 feet) of grout lines.  Also grouts absorb the liquid at different rates.

ASIN	B006MCTSQM
Best Sellers Rank	#59,676 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #201 in Tile Grout #446 in Flooring Products
Brand	Rainbow Chalk Markers Limited
Brand Name	Rainbow Chalk Markers Limited
Color	Brown
Compatible Material	Ceramic, Porcelain
Customer Reviews	4.2 out of 5 stars 1,408 Reviews
Included Components	Grout Pen
Item Dimensions	9.5 x 1.4 x 19 centimeters
Item Form	Pen
Item Weight	25 Grams
Item dimensions L x W x H	9.5 x 1.4 x 19 centimeters
Item weight	25 Grams
Manufacturer	Rainbow Chalk Markers
Material	Acrylic
Material Type	Acrylic
Model	GP81110
Number of Items	1
Number of Packs	1
Part Number	GP81110
Style	Compact
Style Name	Compact
Surface Recommendation	Tile
UPC	722480211102
Unit Count	1 Count
Water Resistance Level	Waterproof
Water resistance level	Waterproof

Rainbow Chalk Markers Limited Grout Pen - Designed for Restoring Tile Grout in bathrooms & Kitchens (Brown)

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Description

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Common Questions