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Ronseal Wet Rot Wood Hardener 500ml

Ronseal Wet Rot Wood Hardener 500ml

Barcode: 5010214538713
Regular price
£14.75 GBP
Sale price
£14.75 GBP
Regular price
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Stop wet rot spreading and make your wood hard again so it can be easily repaired. Suitable for doors, windows and frames. Can be used inside or outside.

Don ¬ t replace rotten wood, repair it Dries in two hours Sets rock hard Soaks in deep and strengthens rotten wood Provides a strong base to begin filling cracks and holes

Before you start

Wear protective gloves to avoid getting hardener on your skin. Open your doors and windows for added ventilation.

    Remove loose or crumbling wood and make sure the area is dry. For the best repairs, drill small holes into the wood so the hardener can get in deeper.


    Give the tin a thorough shake. Pour some of the hardeners out into the plastic lid. Apply it with a paintbrush. Make sure you get enough on so that it completely soaks into the rotten wood. Leave it to dry for two hours. Scrub with a wire brush to get rid of any excess hardener.


Once you ¬ ve used the hardener, you can focus on repairing the wood and filling any holes or cracks with Ronseal wood filler.


Clean your tools with white spirit.


We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at


All orders are processed within the same day. We will contact you if there are any delays. However, some orders may be despatched within the same day and some may take up to 1 day.

Standard Shipping

The order will arrive within 2-3 business days & will be tracked. Standard Shipping is FREE.

Express Shipping

The order will arrive within one business day. Express Shipping costs £1.99, ordering for the same dispatch has a cut off time of 3:00 pm every day except weekends. Express orders made after 3 pm will be dispatched the next day for next day delivery. 


0161 241 6842


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Unit S Highfield Road, Manchester, M38 9ST