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Product Details

Penetrates deep, and hardens decaying wood to give a solid base for wood filling. For interior and exterior use.

Technical Specification
Brand Ronseal
Unavailable offshore
Manufacture ID 32042
Safety Data Sheet click here
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 10 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 8pm Mon-Sat (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Ronseal Wet Rot Wood Hardener 500ml is rated 4.8 out of 5 by 36.
Rated 1 out of 5 by from wood filler product is difficult to mix and an expensive filler which would not harden after use
Date published: 2019-08-06
Rated 4 out of 5 by from It’s all being used abroad Effective treatment for damp affected wood. I’ve used it for many years on external wooden shutters.
Date published: 2019-06-22
Rated 5 out of 5 by from Ronseal Wet Rot Wood Hardener 500ml It does exactly what it says on the tin! Excellent provided its used with Ronseal's Filler
Date published: 2019-06-05
Rated 5 out of 5 by from Does the job well Pity is so expensive as we are on our 3rd can. But it does harden up wood and we have a lot of rotten wood on our heritage railway.
Date published: 2019-03-28
Rated 5 out of 5 by from Does what it says on the tin Can make a good repair and extend the life of woodwork
Date published: 2019-03-11
Rated 5 out of 5 by from Does what is says on the tin I salvaged a piece of door frame that looked un-salvageable. Definitely happy.
Date published: 2019-03-04
Rated 5 out of 5 by from Tools Great for rerectifing ilwooden Windows with areas of wet rot. Dig out the wet wood, treat with this liquid and filll with external filler, sand and roll any depressions. Days later paint. This will last for years if not decades. No need for replacement by cold callers. Bill Unger
Date published: 2018-10-26
Rated 5 out of 5 by from Very good I does exactly what it says on the tin, no kidding.
Date published: 2018-10-11
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