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Tile Grout Repair Pen Waterproof Mold Resistant Marker for Bathroom Kitchen Floor Wall Grout Line Restoration Filler Tool | Thomler

$24.95

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Restore Dingy Grout Lines to Fresh, Clean Perfection in Minutes

Tired of stained, discolored grout dragging down your tile's appearance? This waterproof grout pen lets you refresh any tiled surface without scrubbing or regrouting. Simply trace the old grout lines, let the fast-drying formula set, and watch your floors and walls look brand-new again. Perfect for bathrooms, kitchens, backsplashes, and even outdoor tile, it seals out moisture and stops mold before it starts. No mess, no contractor bills—just a quick, lasting fix you can apply yourself in seconds.

Why You Need This

  • Waterproof seal: Stands up to daily splashes, steam, and humidity without peeling or fading.
  • Mold-resistant coating: Blocks moisture penetration to prevent mildew growth in damp areas like showers and sinks.
  • Covers cracks and stains: Smooths over small chips and evens out discoloration for a uniform, refreshed finish.
  • Fast, no-fuss application: Built-in marker tip delivers precise control—no special tools or experience required.
  • Long-lasting coverage: Each bottle covers multiple square feet, depending on grout width, so you tackle whole rooms at once.
  • Works indoors and out: Use on shower walls, kitchen countertops, entryway floors, or patio tile with confidence.

Built to Last, Easy to Use

Whether you're prepping a rental for new tenants or simply refreshing your own space, this grout pen delivers professional-looking results without the time or expense of re-tiling. The advanced polymer formula bonds tightly to existing grout, resisting wear from foot traffic and cleaning products. And because it's designed for real life, you get durable protection against everything from spilled coffee to shower steam. Every order ships free to your US address, and if you're not thrilled with the transformation, our 30-day return policy has you covered.

Formula: Advanced polymer grout filler

Volume: 8.5 fl oz per bottle

Color: White

Suitable Surfaces: Tile floors, shower walls, backsplashes, countertops, outdoor tile

Drying Time: Touch-dry in minutes, fully cured in 24 hours

Coverage: Approximately 50–80 linear feet (depending on grout width)

Package: 2 bottles

Free shipping across the United States — always, with no minimum order.

Every order is carefully packed and sent with Track & Trace, so you can follow your package every step of the way.

Order today? We ship the next business day.

Not completely happy? You have 30 days to return your purchase.

On top of that, we offer a 3-year warranty against manufacturing defects — your investment is in good hands.

1
Start your return Email us at info@thomler.com with your order number and reason for return.
2
Send it back Pack the item carefully and ship it to our return address.
3
Get your refund Once we receive it, we process your return and refund you within 5 business days.

Made for everyday

Practical pieces you’ll actually use.

Quality first

Chosen for quality you can feel.

Tile Grout Repair Pen Waterproof Mold Resistant Marker for Bathroom Kitchen Floor Wall Grout Line Restoration Filler Tool | Thomler
Tile Grout Repair Pen Waterproof Mold Resistant Marker for Bathroom Kitchen Floor Wall Grout Line Restoration Filler Tool | Thomler Sale price$24.95
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Founder of Thomler

A Note From Our Founder

When I started Thomler, I wanted one thing — to make it easy to find pieces that actually make a home feel like yours, without the markup. Every item we carry is one I'd happily put in my own home. And if it's ever not right, you've got 30 days to send it back, no stress. I'm only ever an email away.

Dean Calloway Founder, Thomler
Need To Know

Frequently Asked Questions

Shipping is free across the United States — on every order, with no minimum.
Orders placed today are dispatched the next business day. You'll get a tracking link by email as soon as it's on the way.
Not happy? You can return your item within 30 days. Just email us and we'll walk you through it.
Yes. Every order is protected with SSL-encrypted checkout, and you can pay with all major cards, Apple Pay, Google Pay, Shop Pay and PayPal.
Absolutely — the moment your order ships, we email you a tracking link so you can follow it every step of the way.
We're sorry! Email info@thomler.com with your order number and a photo, and we'll make it right.
Yes. Every product is covered against manufacturing defects, and comes with our money-back guarantee if it's not right for you.
Yes — you can change or cancel within 6 hours of placing your order. Just email info@thomler.com and we'll take care of