Ronseal High performance Clear Hardener, 500ml
Under 18 yearsProduct details
Product information
Ronseal Wet Rot Wood Harder Reinforces decayed wood. Creating a solid base for filling.
- Hardening wood fibres exposed to wet rot
- Suitable for Decayed wood
Features and benefits
- Dry in just 2 hours for quicker repairs
- Sets rock hard
- Repairs rotten wood, creating a solid base
- Soaks in deep and strengthens rotten wood
- Provides a strong base to begin filling cracks and holes
Health and safety
Please note that this item has additional safety or regulatory datasheets available. The product may have possible health and safety hazards covered in these documents. Refer to the container for full information and always follow the instructions.
DetailsRequires proof of age ID to Click + Collect
Specifications
| Brand | Ronseal |
|---|---|
| Colour | Clear |
| Location | Interior & exterior |
| Volume | 500ml |
| Application method | Brush |
| Number of coats | 1 |
| Container type | Tin |
| Base | Solvent-based |
| VOC level | Very high |
| Durability | Heavy duty |
| Washable | Wipeable |
| Product code | 5010214538713 |
Safety Information
Danger Contains Acetone Highly flammable liquid and vapour. Causes serious eye irritation. May cause drowsiness or dizziness. Keep out of reach of children. If medical advice is needed, have product container or label at hand. Wear eye or face protection. Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Use only outdoors or in a wellventilated area. IF INHALED: Call a POISON CENTER or doctor if you feel unwell. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice or attention. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents and container in accordance with all local, regional, national and international regulations.
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Manufacturer / EU responsible person
EU responsible person
Sherwin-Williams (Ireland) Ltd
Address
Unit 53
Robinhood Industrial Estate
Dublin 22
D22PW99
Ireland
Contact
Reviews
4.72 / 5(62 reviews)T cup - 5 / 5 - 04/06/2026
Excellent value
Excellent product does the job easy to use a bit smelly though
Floss - 5 / 5 - 31/05/2026
Absolutely brilliant
Absolutely brilliant, does what it says on the tin
Pink Beauty - 5 / 5 - 18/05/2026
Great product
I use this product a lot and it is great for all kinds of jobs
Ross - 4 / 5 - 06/05/2026
Rot treatment
Works fine to harden and treat rotten wood (after removing as much as possible).
Del - 5 / 5 - 05/05/2026
Great applicability
Great product for problem, easy to apply and dry. Good seal
BikeBear11 - 5 / 5 - 15/04/2026
Great Product
Great product, does what it says on the tin. Worked for me on my external woodwork.
Nickybouy - 2 / 5 - 14/04/2026
Not so good
Very thin and watery product. Penetrated ok but didn't harder the wood much leaving it very soft even after 4 applications. The Rustins hardener is way better, thicker and actually hardens the wood ready to be filled. Use an old brush as with either type as you cannot get this stuff out and will need to chuck it out every time.
Steffen007 - 5 / 5 - 07/03/2026
Excellent product
I am very pleased with this product. The quality is excellent. It looks great, works perfectly, and fully meets my expectations. Considering the price, it was a fantastic offer and very good value for money. I would definitely recommend it to others.
Nurski - 4 / 5 - 10/12/2025
Good coverage
Did what it said on the tin, easily applied and good coverage
Bevi 2025 - 5 / 5 - 04/10/2025
Does what it says on the tin.
Used on some rotting wood then filled with wood filler. Solid as wood again now.