Grout Pen


White Knight Grout Pen is an amazingly simple and effective product that re-whitens discoloured and painted grout lines.

Ideal for recreating fresh new grout lines on painted tiles as the final step of your tile transformation or to re-whiten discoloured or faded grout on existing tiles. 

  • Easy to use
  • Fast drying
  • Self guiding

Suitable Surfaces

May be used on painted or discoloured grout lines.

Safety & First Aid

  • This product is highly flammable. Store and use away from heat and eliminate any source of ignition.
  • Soak any clothes used in water immediately after use as they may self ignite.
  • If swallowed, seek medical advice immediately and show the container or label. Do not induce vomiting.
  • If in eyes, immediately flush with running water for at least 15 minutes. Seek immediate medical attention.
  • Avoid breathing vapour or mist.
  • Use only with adequate ventilation.
  • If on skin, remove contaminated clothing. Wash skin thoroughly with soap and water. Do not use solvents or thinners.
  • Warning - Misuse by concentrating and inhaling contents can be harmful or fatal.
For 24 hour medical emergency response in Australia call 1800 807 001 and in New Zealand call 0800 154 666



  • Painted grout should be dry before applying.
  • If painting over discoloured grout, ensure it is free from grease, dirt and other contaminants.


  1. Shake well with cap on before use.
  2. Depress the nib several times and hold at sufficient angle to allow sufficient paint flow. On vertical surfaces, paint from the bottom and work upwards.
  3. Apply 2 coats at least one hour apart.

Note: The durability of the pen nib will decrease when used over unpainted grout. If paint colour thins, wipe nib with a soft cloth and depress the nib several times to encourage paint flow.

Keep capped and horizontal when not in use.


Re-coat after 1 hour. Fully dry after 2 hours.

Hints and Tips
  • Heavily contaminated surfaces may require use of plastic scouring pads.