Rustins Wood Hardener

Rustins Wet Rot Wood Hardener is a powerful, solvent-based solution designed to penetrate deep into rotten or decayed wood, hardening and reinforcing it from within. Once cured, it creates a solid, sealed base ready for wood filler, extending the life of the damaged timber and preventing further moisture ingress.

Perfect for both interior and exterior repairs, this quick-drying formula is a cost-effective alternative to wood replacement, helping you save time, money, and materials without compromising on durability.

• Penetrates deeply to strengthen and harden decayed wood
• Seals out moisture, preventing further deterioration
• Supports the use of wood filler for a smooth, lasting repair
• Suitable for interior and exterior use
• Fast drying - ready for repair work in as little as 2 hours
• Extends the life of rotted wood, reducing the need for costly replacement

• Start by removing all loose, decayed, or very soft wood until you reach a firm, sound base.
• While Rustins Wet Rot Wood Hardener is moisture-curing, the wood should be reasonably dry to ensure effective hardening.
• Make sure the surface is also clean and free from grease, dirt, and oil to allow deep penetration and a strong bond.

Proper preparation guarantees the hardener can fully reinforce the wood, providing a solid foundation for your repair.

• Shake well before use to ensure the product is thoroughly mixed and ready to perform.
• Using a brush, apply liberally, thoroughly saturating the wood. Work continuously, allowing each coat to fully absorb before applying the next.
• Depending on the wood’s absorbency, repeat applications as needed, keep going until you see a thin surface film start to form. This continuous process ensures the hardener penetrates deeply to strengthen the timber.
• Drying Time: Each coat dries in about 5 minutes, but for best results, allow the treated wood to become fairly touch-dry, typically around 2 hours, before moving on.

Q. Can Rustins Wood Hardener be used on damp or wet wood?

A. Rustins Wood Hardener is moisture-curing, meaning it works best on wood that is reasonably dry but not completely moisture-free. Avoid applying it to wood that is soaking wet or decayed, such damaged wood should be removed first. For optimal results, make sure the surface is clean and free from grease or dirt before application.

Delivery - All orders placed on a working day before 3pm will be dispatched on the same day for next working day delivery. Orders placed before 3pm on Friday will be delivered on Monday (excluding bank holidays). Orders placed on weekends and Bank Holidays will be dispatched on the next working day. 

Delivery of Tinted Products - Tinted paints are dispatched in line with our express order process, shown below. However, due to their bespoke nature, please allow up to an additional 5 working days to accommodate any potential courier delays or delivery issues before receiving a refund or replacement.

We strongly suggest customers avoid booking tradespeople until they receive their order. Next Day Paint will not be held liable for any costs incurred due to order processing errors, delivery delays, or other issues that may result in financial loss.

Delivery Options

Express Shipping - £3.99

Order by: 3pm, Monday - Sunday

Expected delivery: Next working day, 8am - 9pm

Orders placed on weekends or bank holidays will be dispatched on the next working day for delivery on the following day

AM Delivery - £12.99

Order by: 2pm, Monday - Sunday

Expected delivery: Next working day by 2pm

Orders placed on weekends or bank holidays will be dispatched on the next working day for delivery on the following AM

Late Cut-Off - £5.99

Order by: 4pm, Monday - Friday 

Expected delivery: Next working day, 8am - 9pm

Orders placed on weekends or bank holidays will be dispatched on the next working day for delivery on the following day

Saturday Delivery - £9.95

Order by: 2pm, Friday 

Expected delivery: Saturday, 8am - 9pm

Standard Delivery (Out of Zone Postcodes Only) - £8.99

Order by: 3pm, Monday - Sunday 

Expected delivery:  3-5  working days, 8am - 9pm

Orders placed on weekends or bank holidays will be dispatched on the next working day for delivery on the following day

We do not deliver to the Channel Islands or the Republic of Ireland

Certain postcodes delivery times and charges may vary please head to the cart to see your available delivery options.

Returns

We offer a 14 day money back guarantee for all goods shipped correctly that are not required. If the item is not required, please send the item back for a full refund in its original condition, unused with its original packaging. Please note return for unwanted item is at your own expense.

Contact us as soon as possible to inform us you will be returning the product either by a contact form or by calling our team on 0161 960 0217.

All tinted paint purchases are final and non-refundable. If you're unsure about your selection, please refer to the product listing or contact us for guidance before ordering. Once mixed, tinted paints cannot be returned or refunded, regardless of delivery delays or changes in circumstances.

While we aim to meet delivery timelines, we are not responsible for delays caused by couriers, weather, or other external factors.

We recommend ordering samples or colour charts before purchasing. While we strive to represent colours accurately, screen settings and surface types can affect appearance. Opened tins cannot be returned due to dissatisfaction with colour.

For non-tinted products, we offer a 14-day money-back guarantee. Items must be returned unused, in original condition and packaging, at your own expense.

Damaged Paint

Please visit our damages page, where we can help resolve the issue for you. 

Incorrect Item

If we have sent you a different item from what you ordered, we will be happy to organise an exchange for the correct goods at no extra charge to yourself, please get in touch to organise this.

Faulty Items

Faulty items can be refunded or exchanged within 30 days. All returns are tested, and if no fault is found, no refund will be issued you'll have the option to have the item returned. For faults discovered after 30 days, please contact the manufacturer for further support.