Projects (A-Z)
Brands (A-Z)
Soaks deep in to rotten timber to strengthen and reinforce softened wood.
Features
- A liquid wood hardener designed for wood softened by wet rot
- Suitable for interior and exterior wood
- Ideal for wooden doors, windows, frames and sills
- A cost-effective, long-term alternative to replacing joinery affected by wet rot
- Soaks deep into the fibres of rotted wood to strengthen the wood from within
- Provides a solid base for filling
- Quick drying
Brand
Drying time
2 hrs
No. of coats
1
Coverage
Up to 10 m2 per litre
Size
250ml
500ml
MPN
Please Select Size/Option
GTIN
Please Select Size/Option
Customers Also Bought
Overview
Overview
Back
Ronseal Wet Rot Wood Hardener has been designed to soak into the fibres of rotten wood. Once dry, the special resins harden, strengthening and reinforcing the softened wood, forming a good solid base for filling, as well as sealing against further moisture penetration.
- Looking for a treatment for woodworm? See Ronseal Woodworm Killer
- Looking for a product that treats wet rot and woodworm? Try Ronseal Multi Purpose Wood Treatment
Preparation
Preparation
Back
Ensure that wood to be treated is reasonably dry and free from grease, oil, dust and loose particles before application.
- Remove any completely decayed or very soft crumbly wood until a fairly sound base is exposed
- For the best results, drill small holes into the damaged area to achieve an even deeper hardening of rotten wood
Application
Application
Back
How To Treat Rotten Wood
Always do a small test area before starting any project to assess performance and follow the manufacturer's instructions on the tin at all times. If indoors, open doors and windows to provide proper ventilation. Shake the tin thoroughly before opening.
- Decant a small amount of wood hardener into the lid of the tin or other small container
- Apply wood rot hardener to the softened wood with a paint brush
- Soak the affected area to ensure full absorption of the hardener
- Leave for 2 hours then remove any excess wood hardener with a stiff brush
- Use Ronseal High Performance Wood Filler to fill and finish the damaged area
- Sand off any surface wood hardener prior to painting or finishing
Please Note: Avoid contact with glass, metal, plastic and painted surfaces during the application process. Do not use this product as a surface treatment or primer.
Finishing
Finishing
Back
Once Ronseal Wet Rot Wood Hardener has dried fully, apply Ronseal High Performance Wood Filler once this is set and sanded the wood surface is ready to be coated with a wood stain, paint, preserver or other suitable wood finish.
Datasheets
Reviews
Reviews
Back
32 customer reviews
5.0/5.0
based on last 18+ months
5 stars
29
4 stars
3
3 stars
0
2 stars
0
1 star
0
Very good
Does what it says on the tin.
Michael Pleace. , 250ml (07/04/24)
Excellent for treating rotten wood
Great that it converts rot to solid mass
Terry Perkins. , 500ml (10/12/23)
Excellent
Works very well as a repair vanished.
Dr Christopher Seward. , 250ml (22/03/23)
Very good product does what it says on the tin
As I have said, a very good product. One thing, when you send in email to review your product, you do not say what product you are talking about, which would help enormously, and save the customer wasted time looking up what product you are talking about. And I think you will get a lot more replies from customers.
Ken Mills. , 500ml (28/02/22)
Perfect
Superb rapid delivery service, excellent packaging, and great products at good prices. Also clear helpful technical advice. Highly recommended in every respect.
The products I use are made by Osmo and include UV Protection Oil.
GRAHAM POOLEY. , 500ml (14/02/22)
Very easy to use and very effective
Did nearly everything I wanted and was certainly effective. Only niggle was I couldn't get it to colour match the existing wood. Doesn't affect the fact I would use it again.
Mr P.Gaherty. , 250ml (27/09/21)
Prep treatment
Used to prepare wood posts before filling. Brilliant..
Roderick Shrigley. , 250ml (06/05/21)
It is very good
I have used several times... on quite a few things and it never has let me down.
Mr Gary David Brown.. , 500ml (17/02/21)
Great invention
Used this on a rotting pressure-treated fence in autumn and despite the wet and now freezing weather conditions it is holding up well even though I have not yet got round to painting the fence. Very impressed.
Marianne Smith. , 500ml (08/01/21)
Used effectively over the years
Does exactly what it says on the tin.
Trevor Mason. , 250ml (17/08/20)
Load 10 more reviews