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Sealing your grout lines helps protect them from moisture, dirt, and stains, keeping your tiles looking fresh and clean for longer. Here’s a step-by-step guide on how to seal your grout and achieve lasting protection.
Safety tip: Always wear the appropriate safety equipment (safety glasses, gloves, ear muffs and a mask, for example) and always follow the instructions for the product or equipment.
For spray-on sealer: Hold the can around 30 cm away from the grout lines. Spray evenly along the grout, ensuring you cover all the joints thoroughly. Be careful not to spray too much on the tiles. If any sealer gets on the tiles, wipe it off immediately with a clean cloth.
For brush-on sealer: Hold the bottle upside down and apply gentle pressure as you work along the grout lines. Work in small sections and cover all joints carefully. A steady hand helps you avoid getting excess sealer on the tiles.
Once the first coat has dried (check the manufacturer’s drying time), apply a second coat for added protection. Make sure to follow the same method you used for the first coat.
After the second coat, allow the sealer to cure for at least 24 hours before exposing the grout to moisture. This ensures that the grout is fully protected and sealed for long-lasting use.
Asbestos, lead-based paints and copper chromium arsenic (CCA) treated timber are health hazards you need to look out for when renovating older homes. These substances can easily be disturbed when renovating and exposure to them can cause a range of life-threatening diseases and conditions including cancer. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer or visit our Health & Safety page.
When following our advice in our D.I.Y. videos, make sure you use all equipment, including PPE, safely by following the manufacturer’s instructions. Check that the equipment is suitable for the task and that PPE fits properly. If you are unsure, hire an expert to do the job or talk to a Bunnings Team Member.