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Rust-Oleum Grout Paint Review: Revive and protect grout easily

Rust-Oleum Black Ultra-Durable Grout Paint - Natural Charcoal (Black) 250ml
4.8
[Restores & Transforms Grout]  Revives stained grout on walls, floors and shower cubicles for a like-new appearance.
[Brush Included For Application]  No primer required; simple painting process makes touching up grout quick and precise.
[Fast Drying Formula]  Touch dry in 1 hour and hard dry in 4 hours for same-day completion.
[Durable Mould-Resistant Finish]  Ultra-durable satin finish resists mould and becomes water-resistant within 24 hours.
[Hundreds Of Colour Options]  Available in 100+ colours plus Gold, Silver, Copper and Rose Gold metallic finishes.
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A home improvement paint that restores stained tile grout while leaving a durable satin finish, Rust-Oleum Grout Paint. Homeowners and DIYers get a quick, neat refresh for kitchens, bathrooms and shower cubicles without full re-grouting. Is a 250ml tin and included Grout Brush enough for typical DIY touch-ups?

⚡ At a Glance
  • Finish & Durability: Durable satin finish, ultra-durable and mould-resistant
  • Best for: Homeowners and DIYers refreshing grout on walls, splashbacks, floors and shower cubicles
  • Not ideal for: Large-scale regrouting jobs that require removing and replacing damaged grout

Specialist grout paint gives a satin, long-lasting finish that resists mould and discolouration. Water resistance develops within 24 hours for protection in wet rooms.


Quick Project Turnaround - with a fast-drying formula and included Grout Brush

Formula reaches touch dry in 1 hour and hard dry in 4 hours, allowing multiple stages to be completed in a single day. The Grout Brush is designed for direct application onto grout lines without the need for a primer.

Most small-to-medium touch-ups can be finished the same day, and the brush helps achieve neat lines with minimal fuss.

Neat, Controlled Application - with the specialist Grout Brush and no primer required

Direct-to-grout application avoids extra preparation, while the included brush places pigment precisely into grout joints rather than onto tiles. No primer requirement simplifies prep and reduces steps.

Accurate application reduces cleaning of tile faces and shortens overall project time for DIY users.

Flexible Colour Options and Responsible Packaging - thanks to 100+ colours and a recyclable tin

Available in over 100 colours plus metallic Gold, Silver, Copper and Rose Gold finishes, supplied in a 250ml tin that is infinitely recyclable and packaged in eco-friendly materials. Manufactured in the UK.

Wide colour choice makes matching or updating grout straightforward, while recyclable packaging lowers environmental impact for small DIY jobs.

✨ The 4 Key Reasons for Rust-Oleum Grout Paint
  1. Included Grout Brush - Enables precise application directly into grout lines for a neater finish
  2. No Primer Needed - Cuts preparation time and speeds up DIY projects
  3. Fast Drying Times - Touch dry in 1 hour and hard dry in 4 hours so work can be completed quickly
  4. Eco-Friendly Tin - Infinitely recyclable 250ml tin reduces waste and suits small repairs
📋 Technical Details at a Glance
  • Category: Home Improvement - Grout Paint
  • Finish: Satin
  • Volume: 250ml
  • Drying Time: Touch dry 1 hour; hard dry 4 hours
  • Water Resistance: Water-resistant within 24 hours
❓ Frequently Asked Questions

Q: Can the paint be used in showers and on bathroom floors?

A: Yes. Product descriptions list bathroom and kitchen walls, splashbacks, floors and shower cubicles as suitable surfaces.

Q: Do I need a primer before applying?

A: No primer is required; the formulation is designed for direct application onto grout.

Q: How long before the grout is safe with water contact?

A: The paint is touch dry in 1 hour, hard dry in 4 hours and becomes water-resistant within 24 hours.

🏆 Our Verdict

Ideal for homeowners and DIYers who want to refresh and protect grout without full regrouting. The combination of a fast-drying, satin finish, included Grout Brush and wide colour range makes for efficient, attractive results. Good long-term value for small repairs thanks to durable, mould-resistant formulation and recyclable packaging.